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Engine Controls/fuel - 2.4l - Repair Instructions Chevrolet Equinox II

Testing & Diagnostics 38 illustrations ~6477 words

Scheme 1

Scheme 1: Engine Control Module Replacement
Scheme 1: Engine Control Module Replacement
CalloutComponent Name
1Engine Control Module Cover
2Engine Control Module CAUTION: Turn the ignition OFF when installing or removing the control module connectors and disconnecting or reconnecting the power to the control module (battery cable, powertrain control module (PCM)/engine control module (ECM)/transaxle control module (TCM) pigtail, control module fuse, jumper cables, etc.) in order to prevent internal control module damage. Control module damage may result when the metal case contacts battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables, or when charging the vehicle battery. In order to prevent any possible electrostatic discharge damage to the control module, do no touch the connector pins or the soldered components on the circuit board. Remove any debris from around the control module connector surfaces before servicing the control module. Inspect the control module connector gaskets when diagnosing or replacing the control module. Ensure that the gaskets are installed correctly. The gaskets prevent contaminant intrusion into the control module. The replacement control module must be programmed. CAUTION: In order to prevent any possible electrostatic discharge damage to the ECM, do not touch the connector pins. Procedure Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection . Release the plastic retaining tabs. Disconnect the electrical connectors. If replacing ECM, reprogram the ECM. Refer to Control Module References NOTE: Before removing the engine control module (ECM), use the scan tool to capture the ECM data. This captured data will then need to be restored into the NEW ECM. Refer to Control Module References .
CAUTION
Turn the ignition OFF when installing or removing the control module connectors and disconnecting or reconnecting the power to the control module (battery cable, powertrain control module (PCM)/engine control module (ECM)/transaxle control module (TCM) pigtail, control module fuse, jumper cables, etc.) in order to prevent internal control module damage. Control module damage may result when the metal case contacts battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables, or when charging the vehicle battery. In order to prevent any possible electrostatic discharge damage to the control module, do no touch the connector pins or the soldered components on the circuit board. Remove any debris from around the control module connector surfaces before servicing the control module. Inspect the control module connector gaskets when diagnosing or replacing the control module. Ensure that the gaskets are installed correctly. The gaskets prevent contaminant intrusion into the control module. The replacement control module must be programmed.
CAUTION
In order to prevent any possible electrostatic discharge damage to the ECM, do not touch the connector pins.
NOTE
Before removing the engine control module (ECM), use the scan tool to capture the ECM data. This captured data will then need to be restored into the NEW ECM. Refer to Control Module References .

Engine Control Module Replacement

Crankshaft Position System Variation Learn

Note. The Crankshaft Position Variation Learn procedure is also required when the following service procedures have been performed, regardless of whether DTC P0315 is set: An engine replacement An engine control module (ECM) or body control module (BCM) replacement A crankshaft balancer replacement A crankshaft removal and/or replacement A crankshaft position sensor disturbance/removal and/or replacement Any engine repairs which disturb the crankshaft to crankshaft position sensor relationship.

Note. The ECM monitors certain component signals to determine if all the conditions are met to continue with the Crankshaft Position Variation Learn procedure.

  1. Ignition ON, observe the DTC information with a scan tool. Verify no other DTCs are set, except DTCs P0300-P0304, or P0315. If DTCs are set, except DTCs P0300-P0304, or P0315, refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-trouble-code-dtc-list) for further diagnosis.
  2. Select the Crankshaft Position Variation Learn Procedure with a scan tool and perform the following: NOTE: Close the hood. NOTE: The engine must be at operating temperature. Block drive wheels. Set parking brake. DO NOT apply brake pedal. Turn the air conditioning (A/C) OFF. When directed, apply and hold brake pedal for the duration of the procedure. Ignition ON, engine running at operating temperature. The vehicle must remain in Park or Neutral. NOTE: While the learn procedure is in progress, release the throttle immediately when the engine starts to decelerate. The engine control is returned to the operator and the engine responds to throttle position after the learn procedure is complete. Accelerate to wide open throttle (WOT) and release when the fuel cut-off occurs.
  3. The scan tool displays Learn In Progress.
  4. The scan tool displays Learn Successful.
  5. If not successful, review the reject reason's on the scan tool and repeat step's 1-3.
  6. Verify DTC P0315 ran and passed This Ignition Cycle. If DTC P0315 failed or did not run This Ignition Cycle, or another DTC is present, refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-trouble-code-dtc-list) for the applicable DTC that set.
  7. Once the Crankshaft Position Variation Learn procedure has successfully completed, and in order to store the crankshaft position variation values in the ECM, turn OFF the ignition and verify all vehicle systems are OFF. This may take up to 2 minutes.

Description

The engine control module (ECM) learns the airflow through the throttle body to ensure the correct idle. The learned airflow values are stored within the ECM. These values are learned to adjust for production variation and will continuously learn during the life of the vehicle to compensate for reduced airflow due to throttle body coking. Anytime the throttle body airflow rate changes, for example due to cleaning or replacing, the values must be relearned.

An engine that had a heavily coked throttle body that has been cleaned or replaced may take several drive cycles to learn out the coking. To accelerate the process, the scan tool has the ability to reset all learned values back to zero. A new ECM will also have values set to zero.

The idle may be unstable or a DTC may set if the learned values do not match the actual airflow.

Conditions for Running the Idle Learn Procedure

Reset Procedure

  1. DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0116, P0117, P0118, P0119, P0121, P0122, P0123, P0128, P0171, P0172, P0201-P0204, P0222, P0223, P0300-P0304, P0351-P0354, P0496, P0506, P0507, P0601-P0604, P0606, P062B, P062F, P0630, P0641, P0651, P0697, P06A3, P1101, P1516, P16F3, P2101, P2119, P2122, P2123, P2127, P2128, P2135, P2138, P2176, or P2610 are not set.
  2. Ignition ON, engine OFF.
  3. The vehicle speed sensor (VSS) is 0 km/h (0 mph).

Learn Procedure

  1. DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0116, P0117, P0118, P0119, P0121, P0122, P0123, P0128, P0171, P0172, P0201-P0204, P0222, P0223, P0300-P0304, P0351-P0354, P0496, P0506, P0507, P0601-P0604, P0606, P062B, P062F, P0630, P0641, P0651, P0697, P06A3, P1101, P1516, P16F3, P2101, P2119, P2122, P2123, P2127, P2128, P2135, P2138, P2176, or P2610 are not set.
  2. The engine speed is between 450-4, 000 RPM.
  3. The engine vacuum is greater than 5 kPa.
  4. The mass air flow (MAF) is greater than 2 g/s.
  5. The ignition 1 voltage is greater than 10 V.

Reset/Learn Procedure

Reset Procedure - Performed after the throttle body is cleaned or replaced

  1. Ignition ON, engine OFF, perform the Idle Learn Reset in Module Setup with a scan tool.
  2. Engine idling, monitor the Throttle Body Idle Airflow Compensation parameter. The Throttle Body Idle Airflow Compensation value should equal 0 % and the engine should be idling at a normal idle speed.
  3. Clear the DTCs and return to the diagnostic that referred you here.

Learn Procedure - Performed after the ECM is programmed or replaced

  1. Engine idling for 3 minutes.
  2. Monitor the Desired Idle Speed and the actual Engine Speed with a scan tool.
  3. The ECM will start to learn the new idle cells and Desired Idle Speed should start to decrease.
  4. Ignition OFF for 60 s.
  5. Engine idling for 3 minutes.
  6. After the 3 minute run time the engine speed should return to normal. NOTE: During the drive cycle monitor the DTC information with a scan tool to verify DTC P0506 and P0507 do not set. If DTC P0506 and P0507 set, clear the DTCs so the ECM can continue to learn. If the engine idle speed has not been learned the vehicle will need to be driven at speeds above 70 km/h (44 mph) with several decelerations and extended idles.
  7. After the drive cycle, the engine speed should return to normal. If the engine idle speed has not been learned, turn OFF the ignition for 60 s and repeat step 6.
  8. Once the engine speed has returned to normal, clear DTCs and return to the diagnostic that referred you here.

Scheme 2

Scheme 2: Engine Coolant Temperature Sensor Replacement
Scheme 2: Engine Coolant Temperature Sensor Replacement
CalloutComponent Name
1Engine Coolant Temperature Sensor CAUTION: Refer to Fastener Caution . Procedure Disconnect the electrical connector. Tighten 20 N.m (15 lb ft)
CAUTION
Refer to Fastener Caution .

Engine Coolant Temperature Sensor Replacement

Scheme 3

Scheme 3: Mass Airflow Sensor with Intake Air Temperature Sensor Replacement
Scheme 3: Mass Airflow Sensor with Intake Air Temperature Sensor Replacement
CalloutComponent Name
1Mass Airflow Sensor Fastener (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 4 N.m(35 lb in)
2Mass Airflow Sensor Procedure Disconnect the electrical connector.
CAUTION
Refer to Fastener Caution .

Mass Airflow Sensor with Intake Air Temperature Sensor Replacement

Scheme 4

Scheme 4: Manifold Absolute Pressure Sensor Replacement
Scheme 4: Manifold Absolute Pressure Sensor Replacement
CalloutComponent Name
Preliminary Procedure Remove the air cleaner resonator. Refer to Air Cleaner Outlet Resonator Replacement
1Manifold Absolute Pressure Sensor Fastener CAUTION: Refer to Fastener Caution . Procedure Disconnect the electrical connector. Tighten 4 N.m (35 lb in)
2Manifold Absolute Pressure Sensor
CAUTION
Refer to Fastener Caution .

Manifold Absolute Pressure Sensor Replacement

Scheme 5

Scheme 5: Heated Oxygen Sensor Replacement - Sensor 1
Scheme 5: Heated Oxygen Sensor Replacement - Sensor 1
CalloutComponent Name
Preliminary Procedure Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
1Heated Oxygen Sensor CAUTION: Do not remove the pigtail from either the heated oxygen sensor (HO2S) or the oxygen sensor (O2S). Removing the pigtail or the connector will affect sensor operation. Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the in-line electrical connector and the louvered end free of grease, dirt, or other contaminants. Do not use cleaning solvents of any type. Do not repair the wiring, connector or terminals. Replace the oxygen sensor if the pigtail wiring, connector, or terminal is damaged. This external clean air reference is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires, connectors, or terminals could result in the obstruction of the air reference and degraded sensor performance. The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These materials may get into the sensor causing poor performance. Do not damage the sensor pigtail and harness wires in such a way that the wires inside are exposed. This could provide a path for foreign materials to enter the sensor and cause performance problems. Ensure the sensor or vehicle lead wires are not bent sharply or kinked. Sharp bends or kinks could block the reference air path through the lead wire. Do not remove or defeat the oxygen sensor ground wire, where applicable. Vehicles that utilize the ground wired sensor may rely on this ground as the only ground contact to the sensor. Removal of the ground wire will cause poor engine performance. Ensure that the peripheral seal remains intact on the vehicle harness connector in order to prevent damage due to water intrusion. The engine harness may be repaired using Packard's Crimp and Splice Seals Terminal Repair Kit. Under no circumstances should repairs be soldered since this could result in the air reference being obstructed. CAUTION: Refer to Fastener Caution . Procedure Disconnect the heated oxygen sensor harness connector. If reinstalling the old sensor, coat the threads with anti-sieze compound. Refer to Adhesives, Fluids, Lubricants, and Sealers . TIP: A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphic and glass beads. The graphic tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-sieze compound applied before reinstallation. Tighten 42 N.m (31 lb in)
CAUTION
Do not remove the pigtail from either the heated oxygen sensor (HO2S) or the oxygen sensor (O2S). Removing the pigtail or the connector will affect sensor operation. Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the in-line electrical connector and the louvered end free of grease, dirt, or other contaminants. Do not use cleaning solvents of any type. Do not repair the wiring, connector or terminals. Replace the oxygen sensor if the pigtail wiring, connector, or terminal is damaged. This external clean air reference is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires, connectors, or terminals could result in the obstruction of the air reference and degraded sensor performance. The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These materials may get into the sensor causing poor performance. Do not damage the sensor pigtail and harness wires in such a way that the wires inside are exposed. This could provide a path for foreign materials to enter the sensor and cause performance problems. Ensure the sensor or vehicle lead wires are not bent sharply or kinked. Sharp bends or kinks could block the reference air path through the lead wire. Do not remove or defeat the oxygen sensor ground wire, where applicable. Vehicles that utilize the ground wired sensor may rely on this ground as the only ground contact to the sensor. Removal of the ground wire will cause poor engine performance. Ensure that the peripheral seal remains intact on the vehicle harness connector in order to prevent damage due to water intrusion. The engine harness may be repaired using Packard's Crimp and Splice Seals Terminal Repair Kit. Under no circumstances should repairs be soldered since this could result in the air reference being obstructed.
CAUTION
Refer to Fastener Caution .

Heated Oxygen Sensor Replacement - Sensor 1

Scheme 6

Scheme 6: Heated Oxygen Sensor Replacement - Sensor 2
Scheme 6: Heated Oxygen Sensor Replacement - Sensor 2
CalloutComponent Name
Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1Heated Oxygen Sensor CAUTION: Do not remove the pigtail from either the heated oxygen sensor (HO2S) or the oxygen sensor (O2S). Removing the pigtail or the connector will affect sensor operation. Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the in-line electrical connector and the louvered end free of grease, dirt, or other contaminants. Do not use cleaning solvents of any type. Do not repair the wiring, connector or terminals. Replace the oxygen sensor if the pigtail wiring, connector, or terminal is damaged. This external clean air reference is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires, connectors, or terminals could result in the obstruction of the air reference and degraded sensor performance. The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These materials may get into the sensor causing poor performance. Do not damage the sensor pigtail and harness wires in such a way that the wires inside are exposed. This could provide a path for foreign materials to enter the sensor and cause performance problems. Ensure the sensor or vehicle lead wires are not bent sharply or kinked. Sharp bends or kinks could block the reference air path through the lead wire. Do not remove or defeat the oxygen sensor ground wire, where applicable. Vehicles that utilize the ground wired sensor may rely on this ground as the only ground contact to the sensor. Removal of the ground wire will cause poor engine performance. Ensure that the peripheral seal remains intact on the vehicle harness connector in order to prevent damage due to water intrusion. The engine harness may be repaired using Packard's Crimp and Splice Seals Terminal Repair Kit. Under no circumstances should repairs be soldered since this could result in the air reference being obstructed. CAUTION: Refer to Fastener Caution . Procedure Disconnect the heated oxygen sensor harness connector. If reinstalling the old sensor, coat the threads with anti-sieze compound. Refer to Adhesives, Fluids, Lubricants, and Sealers . TIP: A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphic and glass beads. The graphic tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-sieze compound applied before reinstallation. Tighten 42 N.m (31 lb in)
CAUTION
Do not remove the pigtail from either the heated oxygen sensor (HO2S) or the oxygen sensor (O2S). Removing the pigtail or the connector will affect sensor operation. Handle the oxygen sensor carefully. Do not drop the HO2S. Keep the in-line electrical connector and the louvered end free of grease, dirt, or other contaminants. Do not use cleaning solvents of any type. Do not repair the wiring, connector or terminals. Replace the oxygen sensor if the pigtail wiring, connector, or terminal is damaged. This external clean air reference is obtained by way of the oxygen sensor signal and heater wires. Any attempt to repair the wires, connectors, or terminals could result in the obstruction of the air reference and degraded sensor performance. The following guidelines should be used when servicing the heated oxygen sensor: Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These materials may get into the sensor causing poor performance. Do not damage the sensor pigtail and harness wires in such a way that the wires inside are exposed. This could provide a path for foreign materials to enter the sensor and cause performance problems. Ensure the sensor or vehicle lead wires are not bent sharply or kinked. Sharp bends or kinks could block the reference air path through the lead wire. Do not remove or defeat the oxygen sensor ground wire, where applicable. Vehicles that utilize the ground wired sensor may rely on this ground as the only ground contact to the sensor. Removal of the ground wire will cause poor engine performance. Ensure that the peripheral seal remains intact on the vehicle harness connector in order to prevent damage due to water intrusion. The engine harness may be repaired using Packard's Crimp and Splice Seals Terminal Repair Kit. Under no circumstances should repairs be soldered since this could result in the air reference being obstructed.
CAUTION
Refer to Fastener Caution .

Heated Oxygen Sensor Replacement - Sensor 2

Scheme 7

Scheme 7: Accelerator Pedal with Position Sensor Assembly Replacement
Scheme 7: Accelerator Pedal with Position Sensor Assembly Replacement
CalloutComponent Name
Preliminary Procedures Remove the instrument panel insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side (Equinox) , Instrument Panel Insulator Panel Replacement - Left Side (Terrain) . Remove the Communication Interface Module. Refer to Communication Interface Module Replacement .
1Accelerator Pedal Fastener (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 8 N.m (71 lb in)
2Accelerator Pedal Position Sensor Procedure Disconnect the electrical connector.
CAUTION
Refer to Fastener Caution .

Accelerator Pedal with Position Sensor Assembly Replacement

Scheme 8

Scheme 8: Throttle Body Assembly Replacement
Scheme 8: Throttle Body Assembly Replacement
CalloutComponent Name
Preliminary Procedure Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement
1Throttle Body Assembly Fastener (Qty: 4) CAUTION: Refer to Fastener Caution . Procedure Disconnect the electrical connector. Tighten 10 N.m (89 lb in)
2Throttle Body Assembly Procedure Disconnect the electrical connector. Use a NEW throttle body O-ring. Perform the throttle learn procedure. Refer to Throttle/Idle Learn .
CAUTION
Refer to Fastener Caution .

Throttle Body Assembly Replacement

Throttle Body Cleaning

Note. Over extended time and mileage, deposits may accumulate on the back of the throttle valve plate. The source of the deposit is exhaust gas recirculation (EGR) gas. Typically these deposits pose no problem. Occasionally the deposit may accumulate to a point where perceived pedal effort or throttle valve movement is effected. This procedure should not be performed on vehicles with mileage under 80 450 km (50, 000 mi).

  1. Remove the air cleaner outlet duct resonator. Refer to «Air Cleaner Outlet Resonator Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__air-cleaner-outlet-resonator-replacement) .
  2. Inspect the throttle body bore and the throttle valve plate for deposits. You will need to open the throttle valve in order to inspect all surfaces.
  3. Clean the throttle body bore and the throttle valve plate using a clean shop towel with GM top engine cleaner, GM P/N 1052626 (Canadian P/N 993026) or ACDelco Carburetor Tune-Up Conditioner, P/N X66-P, or an equivalent product.
  4. Install the air cleaner outlet duct resonator. Refer to «Air Cleaner Outlet Resonator Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__air-cleaner-outlet-resonator-replacement) .
  5. Perform the Throttle/Idle Learn procedure. Refer to «Throttle/Idle Learn»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .

Fuel Pressure Relief

WARNINGFuel that flows out at high pressure can cause serious injury to the skin and eyes. ALWAYS depressurize the fuel system before removing components that are under high fuel pressure.
  1. Disconnect the fuel tank wiring harness to the body wiring harness connector.
  2. Start the vehicle and allow the engine to idle until the engine stops. The engine will stop in approximately 20-30 seconds.
  3. Turn the ignition OFF.
  4. Using a scan tool, verify that there is little to no fuel pressure, if there still is fuel pressure repeat step 2.

Fuel Pressure Gauge Installation and Removal

Special Tools

CH 48027 Digital Pressure Gauge

For equivalent regional tools, refer to Special Tools

Installation Procedure

WARNINGRemove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the connections. In order to reduce the risk of personal injury, cover the fuel system components with a shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.
  1. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions__fuel-pressure-relief) .
  2. Connect the CH 48027 gauge (1) to the CH 48027 adapter (2).
  3. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline container.
  4. Perform any tests and/or diagnostics as needed. For the proper usage of the CH 48027 gauge (1), refer to the manufacture's directions.

Removal Procedure

  1. Relieve the fuel system pressure, if required. Perform the following steps: Wrap a shop towel around the fuel rail service port. Place the hose on the CH 48027 adapter (2) into an approved gasoline container. Open the valve on the CH 48027 adapter (2) in order to bleed any fuel from the fuel rail. Close the valve on the CH 48027 adapter (2). Remove the hose on the CH 48027 adapter (2) from the approved gasoline container. Remove the shop towel from around the fuel rail service port, and place in an approved gasoline container.
  2. Disconnect the CH 48027 gauge (1) from the CH 48027 gauge (2).
  3. Disconnect the CH 48027 adapter (2) from the CH 48027 adapter (3).
  4. Disconnect the CH 48027 adapter (3) from the fuel rail service port.
  5. Install the fuel rail service port cap.
  6. Install the engine cover, if required.
  7. Tighten the fuel fill cap.

Metal Collar Quick Connect Fitting Service

Special Tools

EN-37088-A Fuel Line Disconnect Tool Set

For equivalent regional tools, refer to Special Tools .

  1. Relieve the fuel system pressure before servicing any fuel system connection. Refer to «Fuel Pressure Relief»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-pressure-relief) .
  2. Remove the retainer from the quick connect fitting.
  3. Blow dirt out of the fitting using compressed air.
  4. Choose the correct tool from the EN-37088-A set for the size of the fitting. Insert the tool into the female connector, then push inward in order to release the locking tabs.
  5. Pull the connection apart.
  6. Use a clean shop towel in order to wipe off the male pipe end.
  7. Inspect both ends of the fitting for dirt and burrs. Clean or replace the components as required.
  1. Apply a few drops of clean engine oil to the male pipe end.
  2. Push both sides of the fitting together in order to snap the retaining tabs into place.
  3. Once installed, pull on both sides of the fitting in order to make sure the connection is secure.
  4. Install the retainer to the quick connect fitting.
  1. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-pressure-relief) .
  2. Using compressed air, blow any dirt out of the quick connect fitting.
  3. This step applies to the Bartholomew style connectors ONLY. Squeeze the plastic quick connect fitting release tabs.
  4. This step applies to the Q release type connectors ONLY. Release the fitting by pushing the tab toward the other side of the slot in the fitting.
  5. This step applies to the Squeeze to release style connectors ONLY. Squeeze where indicated by arrows on both sides of the plastic ring surrounding the quick connect fitting.
  6. This step also applies to the Squeeze to release style connectors ONLY. Squeeze where indicated by the arrows on both sides of the plastic ring surrounding the quick connect fitting.
  7. This step applies to the Sliding retainer style connectors ONLY. Release the fitting by pressing on one side of the release tab causing it to push in slightly. If the tab does not move, try pressing the tab in from the opposite side. the tab will only move in one direction.
  8. This step applies to the Push down TI style connectors ONLY. Release the fitting by pressing on the tabs indicated by the arrow.
  9. Pull the connection apart.
  10. Wipe off the male pipe end using a clean shop towel.
  11. Inspect both ends of the fitting for dirt and burrs.
  12. Clean or replace the components as required.
  1. Apply a few drops of clean engine oil to the male connection end.
  2. Push both sides of the quick connect fitting together in order to cause the retaining feature to snap into place.
  3. Once installed, pull on both sides of the quick connect fitting in order to make sure the connection is secure.

Fuel Tank Draining

Special Tools

  1. CH 45004 Fuel Tank Drain Hose
  2. CH 48027 Digital Fuel Pressure Gauge

For regional equivalent tools refer to Special Tools .

For any operation requiring removal of the fuel tank, there should be no more than 11.4 L (3 gal) of fuel remaining. This minimizes the weight of the fuel tank assembly and eases handling. The fuel level can be determined by reading the fuel level gauge. A reading below 1/4 full indicates that no more than 11.4 L (3 gal) are remaining.

Using The Fuel Pump

WARNINGDo not allow smoking or the use of open flames in the area where work on the fuel or EVAP system is taking place. Anytime work is being done on the fuel system, disconnect the negative battery cable, except for those tests where battery voltage is required.
WARNINGNever drain or store fuel in an open container due to the possibility of fire or explosion.

Using the fuel pump to drain the tank is the easiest procedure if the fuel pump is operable. The fuel can be pumped out with the vehicle on the ground or on a hoist.

On The Ground

  1. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-pressure-relief) .
  2. Disconnect the fuel feed quick connect fitting from the fuel rail. Refer «Metal Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__metal-collar-quick-connect-fitting-service) .
  3. Install the 3/8 in. x 1/4 in fitting from the CH 48027 Digital Fuel Pressure Gauge into the fuel feed quick connect fitting.
  4. Connect a suitable drain hose to the other end of the adapter and connect the drain hose to a certified fuel handling cart.
  5. Connect a scan tool to the vehicle diagnostic connector and turn the ignition ON.
  6. Energize the fuel pump using the scan tool.
  7. Pump out the fuel until no more than 1/4 tank of fuel remains.

On The Hoist

  1. Connect a scan tool to the vehicle diagnostic connector and turn the ignition ON.
  2. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-pressure-relief) .
  3. Raise the vehicle on a hoist to a comfortable working height, keeping the scan tool outside of the vehicle and accessible from under the car.
  4. Disconnect the fuel tank fuel feed line quick connect fitting from the chassis fuel feed pipe. Refer «Plastic Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  5. Install the 3/8 in. x 1/4 in fitting from the CH 48027 Digital Fuel Pressure Gauge into the fuel feed quick connect fitting.
  6. Connect a suitable drain hose to the other end of the adapter and connect the drain hose to a certified fuel handling cart.
  7. Energize the fuel pump using the scan tool.
  8. Pump out the fuel until no more than 1/4 tank of fuel remains.

Siphoning The Fuel Tank

WARNINGDo not allow smoking or the use of open flames in the area where work on the fuel or EVAP system is taking place. Anytime work is being done on the fuel system, disconnect the negative battery cable, except for those tests where battery voltage is required.

If the fuel pump is inoperative, the tank can be drained by siphoning from the tank. A suitable means is through the fuel fill pipe with the correct type and stiffness of tubing as used with the CH 45004 Fuel Tank Drain Hose.

  1. Disconnect the negative battery cable. Refer to «Battery Negative Cable Disconnection and Connection»(/chevrolet/equinox/ii-2009-2015/remont/charging-system/#battery-charging-system-and-starting-system) .
  2. Open the fuel fill door and remove the gas cap.
  3. Insert the siphon hose guide/funnel into the fuel fill pipe opening.
  4. Insert the hose into the guide funnel and into the fuel fill pipe. Some resistance may be encountered when the tip of the siphon hose reaches the inlet check valve. Repeated probing may be necessary to slide the hose tip through the check valve cage.
  5. Begin the fuel siphoning process. Place the fuel into an approved fuel container.
  6. Remove the siphon hose from the fuel fill pipe after draining is complete.
  1. Ensure that the fuel level in the tank is less than 1/4 full. If necessary, drain the fuel tank to at least this level. Refer to «Fuel Tank Draining»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-draining) .
  2. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-pressure-relief) .
  3. Disconnect the negative battery cable. Refer to «Battery Negative Cable Disconnection and Connection»(/chevrolet/equinox/ii-2009-2015/remont/charging-system/#battery-charging-system-and-starting-system) .
  4. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#general-information) .
  5. Remove the exhaust system. Refer to «Exhaust Muffler Replacement»(/chevrolet/equinox/ii-2009-2015/remont/exhaust/#engine-exhaust-system) .
  6. Remove the propeller shaft. Refer to «Propeller Shaft Replacement»(/chevrolet/equinox/ii-2009-2015/remont/driveshaft-universal-joints/#propeller-shaft-and-universal-joints) .
  7. Place a suitable container under the fuel line connection in order to catch any dripping fuel.
  8. Remove the evaporative emission canister. Refer to «Evaporative Emission Canister Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  9. Disconnect the chassis fuel supply line (2) from the fuel tank.
  10. Disconnect the fuel filler tube, EVAP vent hose, and fresh air hose from the fuel tank.
  11. Disconnect the fuel tank electrical connector and remove the electrical connector retainer from the rear frame.
  12. Using a suitable adjustable jack, support the fuel tank.
  13. Remove the fuel tank strap nuts and lower the fuel tank straps.
  14. Lower the front of the fuel tank (with shield), and pull the tank forward to clear the rear drive module.
  15. If replacing the fuel tank, remove the fuel tank module assemblies. Refer to «Fuel Tank Fuel Pump Module Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) , and «Fuel Tank Fuel Pump Module Replacement - Secondary (With Out)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) .
  16. If replacing the fuel tank, remove the heat shield, hoses and wiring harness and transfer to the new tank.
  1. If previously removed, install the fuel tank module assemblies. Refer to «Fuel Tank Fuel Pump Module Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) , and «Fuel Tank Fuel Pump Module Replacement - Secondary (With Out)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) .
  2. Using a suitable adjustable jack, install the fuel tank heat shield and fuel tank assembly to the vehicle.
  3. Install the fuel tank straps and the fuel tank strap-to-body nuts and tighten to 20 N.m (15 lb ft).
  4. Connect the fuel tank electrical connector and install the electrical connector retainer to the rear frame.
  5. Connect the EVAP vent, and fresh air hoses to the fuel tank.
  6. Connect the fuel filler tube to the fuel tank. Tighten the fuel filler tube clamp to 5 N.m (44 lb in).
  7. Connect the chassis fuel supply line (2) to the fuel tank.
  8. Install the evaporative emission canister. Refer to «Evaporative Emission Canister Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  9. Install the propeller shaft. Refer to «Propeller Shaft Replacement»(/chevrolet/equinox/ii-2009-2015/remont/driveshaft-universal-joints/#propeller-shaft-and-universal-joints) .
  10. Install the exhaust system. Refer to «Exhaust Muffler Replacement»(/chevrolet/equinox/ii-2009-2015/remont/exhaust/#engine-exhaust-system) .
  11. Lower the vehicle.
  12. Fill the fuel tank with gasoline.
  13. Connect the negative battery cable. Refer to «Battery Negative Cable Disconnection and Connection»(/chevrolet/equinox/ii-2009-2015/remont/charging-system/#battery-charging-system-and-starting-system) .
  14. Prime the fuel system: Cycle the ignition ON for 5 seconds and then OFF for 10 seconds. Repeat the previous step twice. Crank the engine until it starts. The maximum starter motor cranking time is 20 seconds. If the engine does not start, repeat steps 14.1-14.3.
  1. Ensure that the fuel level in the tank is less than 1/4 full. If necessary, drain the fuel tank to at least this level. Refer to «Fuel Tank Draining»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-draining) .
  2. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-pressure-relief) .
  3. Disconnect the negative battery cable. Refer to «Battery Negative Cable Disconnection and Connection»(/chevrolet/equinox/ii-2009-2015/remont/charging-system/#battery-charging-system-and-starting-system) .
  4. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#general-information) .
  5. Remove the exhaust system. Refer to «Exhaust Muffler Replacement»(/chevrolet/equinox/ii-2009-2015/remont/exhaust/#engine-exhaust-system) .
  6. Disconnect the canister vent valve electrical connectors.
  7. Disconnect the vent hose from the canister filter.
  8. Disconnect the fuel tank vent pipe from the evaporative emission canister.
  9. Disconnect the chassis fuel supply line (2) from the fuel tank.
  10. Disconnect the fuel filler tube, EVAP vent hose, and fresh air hose from the fuel tank.
  11. Disconnect the fuel tank electrical connector and remove the electrical connector retainer from the rear frame.
  12. Support the fuel tank using a suitable jack.
  13. Remove the fuel tank strap nuts, and lower the fuel tank straps.
  14. Lower the fuel tank from the underbody of the vehicle.
  15. If replacing the fuel tank, remove the fuel tank module assemblies. Refer to «Fuel Tank Fuel Pump Module Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) , and «Fuel Tank Fuel Pump Module Replacement - Secondary (With Out)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) .
  16. If replacing the fuel tank, remove the heat shield, hoses and wiring harness, and transfer to the new tank.
  1. If previously removed, install the fuel tank module assemblies. Refer to «Fuel Tank Fuel Pump Module Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) , and «Fuel Tank Fuel Pump Module Replacement - Secondary (With Out)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) .
  2. Using an adjustable jack, slowly raise and reposition the fuel tank (3) in order to install the tank to the vehicle.
  3. Install the fuel tank straps and the fuel tank strap-to-body nuts and tighten to 20 N.m (15 lb ft).
  4. Connect the fuel tank electrical connector and install the electrical connector retainer to the rear frame.
  5. Connect the EVAP vent, and fresh air hoses to the fuel tank.
  6. Connect the fuel filler tube to the fuel tank. Tighten the fuel filler tube clamp to 5 N.m (44 lb in).
  7. Connect the chassis fuel supply line (2) to the fuel tank.
  8. Connect the fuel tank vent pipe to the evaporative emission canister.
  9. Connect the vent hose to the canister filter.
  10. Connect the canister vent valve electrical connector.
  11. Install the exhaust system. Refer to «Exhaust Muffler Replacement»(/chevrolet/equinox/ii-2009-2015/remont/exhaust/#engine-exhaust-system) .
  12. Lower the vehicle.
  13. Fill the fuel tank with gasoline.
  14. Connect the negative battery cable. Refer to «Battery Negative Cable Disconnection and Connection»(/chevrolet/equinox/ii-2009-2015/remont/charging-system/#battery-charging-system-and-starting-system) .
  15. Prime the fuel system: Cycle the ignition ON for 5 seconds and then OFF for 10 seconds. Repeat the previous step twice. Crank the engine until it starts. The maximum starter motor cranking time is 20 seconds. If the engine does not start, repeat steps 15.1-15.3.

Fuel System Cleaning

Special Tools

SA9127E-7 Fuel Pressure/Flow Adapter

After it is determined that the fuel system is contaminated, the following procedure to clean it is recommended.

  1. Place the vehicle on a hoist and open the hood.
  2. Disconnect the negative battery cable. Refer to «Battery Negative Cable Disconnection and Connection»(/chevrolet/equinox/ii-2009-2015/remont/charging-system/#battery-charging-system-and-starting-system) .
  3. Remove the fuel tank. Refer to «Fuel Tank Replacement (AWD)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) , «Fuel Tank Replacement (FWD)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  4. Disconnect the fuel feed line at the fuel rail. Refer to «Metal Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__metal-collar-quick-connect-fitting-service) .
  5. With compressed air, blow out the fuel feed. Catch the fuel in a container at the opposite end of the line.
  6. Remove the fuel tank modules. Refer to «Fuel Tank Fuel Pump Module Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) , and/or «Fuel Tank Fuel Pump Module Replacement - Secondary (With Out)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) .
  7. Inspect the inlet filter on the primary pump. If plugged or damaged, the fuel pump module must be replaced.
  8. Flush the tank with hot water for at least 6 minutes. Invert and drain. All metal chips/debris must be removed from the tank prior to installation.
  9. Install the fuel pump modules to the fuel tank using a new fuel pump seal. Do not connect the fuel feed line to the new filter.
  10. Install the fuel tank to the vehicle.
  11. Connect the fuel line to the fuel rail. Refer to «Metal Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__metal-collar-quick-connect-fitting-service) .
  12. Put at least 22.7 liters (6 gallons) of clean fuel into the fuel tank.
  13. Connect the negative battery cable. Refer to «Battery Negative Cable Disconnection and Connection»(/chevrolet/equinox/ii-2009-2015/remont/charging-system/#battery-charging-system-and-starting-system) .
  14. Connect a scan tool to the vehicle and turn the ignition ON.
  15. Raise the vehicle on a hoist and install the male quick connect adapter SA9127E-7 fuel pressure/flow adapter into the fuel feed line.
  16. Install the drain hose to the adapter and place the other end in an approved container.
  17. Energize the fuel pump with the scan tool for 1-2 minutes. Refer to Energizing the Fuel Pump. This will pump about 1.9 liters (2 quarts) of fuel and purge any debris in the fuel pump.
  18. Disconnect the fuel drain hose adapter at the fuel feed line and connect the fuel line to the fuel filter.
  19. Energize the fuel pump and check all connections for leaks.
  20. De-energize the pump, lower the vehicle, and start the engine.

Fuel Tank Fuel Pump Module Replacement

Special Tools

J-45722 Fuel Tank Sender Wrench

For equivalent regional tools, refer to Special Tools .

  1. Remove the fuel tank. Refer to «Fuel Tank Replacement (AWD)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) , «Fuel Tank Replacement (FWD)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  2. Disconnect the crossover tube from the secondary fuel pump module. Refer to «Fuel Tank Fuel Pump Module Replacement - Secondary (With Out)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) .
  3. Disconnect the electrical connectors (1).
  4. Disconnect the fuel and evaporative emission lines (2). Refer to «Plastic Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  5. Using the J-45722 wrench, remove the cam lock ring (1) by turning counterclockwise.
  6. Remove the primary fuel tank module (1) and the O-ring (2).
  7. If replacing the fuel pump module only, remove the primary fuel level sensor. Refer to «Primary Fuel Level Sensor Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  1. If replacing the fuel pump module only, install the primary fuel level sensor. Refer to «Primary Fuel Level Sensor Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  2. Install a NEW O-ring (2) and the primary fuel tank module (1).
  3. Using the J-45722 wrench, install the cam lock ring (1) by turning clockwise.
  4. Connect the electrical connectors (1).
  5. Connect the fuel and evaporative emission lines (2). Refer to «Plastic Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  6. Connect the crossover tube to the secondary fuel pump module. Refer to «Fuel Tank Fuel Pump Module Replacement - Secondary (With Out)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-tank-fuel-pump-module-replacement) .
  7. Install the fuel tank. Refer to «Fuel Tank Replacement (AWD)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) , «Fuel Tank Replacement (FWD)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .

Fuel Tank Fuel Pump Module Replacement - Secondary (With Out)

Special Tools

CH-48482 Fuel Tank Sender Wrench

For equivalent region tools, refer to Special Tools .

  1. Remove the fuel tank. Refer to «Fuel Tank Replacement (FWD)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) , «Fuel Tank Replacement (AWD)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  2. Disconnect the electrical connector (1).
  3. Disconnect the evaporative emission line (2). Refer to «Plastic Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  4. Using the CH-48482 wrench, remove the cam lock ring (1) by turning counterclockwise.
  5. Partially raise the secondary fuel pump module and disconnect the crossover tube (1) by squeezing the plastic retaining tabs (2).
  6. Remove the secondary fuel tank module (1) and the O-ring (2).
  1. Partially install the secondary fuel pump module and connect the crossover tube (1) by sliding into position.
  2. Install a NEW O-ring (2) and the secondary fuel tank module (1).
  3. Using the CH-48482 wrench, install the cam lock ring (1) by turning clockwise.
  4. Connect the electrical connector (1).
  5. Connect the evaporative emission line (2). Refer to «Plastic Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  6. Install the fuel tank. Refer to «Fuel Tank Replacement (FWD)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) , «Fuel Tank Replacement (AWD)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .

Scheme 9

Scheme 9: Fuel Pump Flow Control Module Replacement
Scheme 9: Fuel Pump Flow Control Module Replacement
CalloutComponent Name
1Fuel Pump Flow Control Module Fastener CAUTION: Refer to Fastener Caution Tighten 8 N.m(71 lb in)
2Fuel Pump Flow Control Module Procedure Open the spare tire compartment lid. Disconnect the electrical connector. If replacing, reprogram the module. Refer to Control Module References
CAUTION
Refer to Fastener Caution

Fuel Pump Flow Control Module Replacement

Scheme 10

Scheme 10: Fuel Tank Pressure Sensor Replacement (NU6)
Scheme 10: Fuel Tank Pressure Sensor Replacement (NU6)
CalloutComponent Name
Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1Fuel Tank Pressure Sensor Procedure Use a flat bladed tool to remove the sensor. Disconnect the electrical connector.

Fuel Tank Pressure Sensor Replacement (NU6)

Scheme 11

Scheme 11: Fuel Tank Pressure Sensor Replacement (Without NU6)
Scheme 11: Fuel Tank Pressure Sensor Replacement (Without NU6)
CalloutComponent Name
Preliminary Procedures Lower the fuel tank. Refer to Fuel Tank Replacement (FWD) , Fuel Tank Replacement (AWD) . Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1Fuel Tank Pressure Sensor Procedure Use a flat bladed tool to remove the sensor. Disconnect the electrical connector.

Fuel Tank Pressure Sensor Replacement (Without NU6)

Scheme 12

Scheme 12: Primary Fuel Level Sensor Replacement
Scheme 12: Primary Fuel Level Sensor Replacement
CalloutComponent Name
Preliminary Procedure Remove the fuel pump module. Refer to Fuel Tank Fuel Pump Module Replacement .
1Fuel Level Sensor Procedure Release the retaining tabs. Disconnect the electrical connector.

Primary Fuel Level Sensor Replacement

Scheme 13

Scheme 13: Fuel Tank Filler Pipe Replacement
Scheme 13: Fuel Tank Filler Pipe Replacement
CalloutComponent Name
Preliminary Procedure Remove the rear wheel house liner. Refer to Rear Wheelhouse Panel Liner Replacement (Terrain) , Rear Wheelhouse Panel Liner Replacement (Equinox) . Disconnect the evaporative emission lines. Refer to Plastic Collar Quick Connect Fitting Service .
1Filler Pipe Fastener (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 10 N.m (89 lb in)
2Fuel Tank Filler Pipe Clamp Tighten 4 N.m (35 lb in)
3Fuel Tank Filler Pipe
CAUTION
Refer to Fastener Caution .

Fuel Tank Filler Pipe Replacement

Scheme 14

Scheme 14: Fuel Pump Cover Replacement
Scheme 14: Fuel Pump Cover Replacement
CalloutComponent Name
1Fuel Pump Cover Fastener (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 10 N.m(89 lb in)
2Fuel Pump Cover
3Fuel Pump Insulator
CAUTION
Refer to Fastener Caution .

Fuel Pump Cover Replacement

Scheme 15

Scheme 15: Fuel Feed Pipe Replacement (With Direct Injection)
Scheme 15: Fuel Feed Pipe Replacement (With Direct Injection)
CalloutComponent Name
Preliminary Procedures Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement . Disconnect the fuel lines. Refer to Metal Collar Quick Connect Fitting Service .
1Fuel Feed Pipe Fastener CAUTION: Refer to Fastener Caution . Tighten 10 N.m (89 lb in)
2Fuel Feed Pipe
CAUTION
Refer to Fastener Caution .

Fuel Feed Pipe Replacement (With Direct Injection)

Scheme 16

Scheme 16: Fuel Feed Hose Replacement
Scheme 16: Fuel Feed Hose Replacement
CalloutComponent Name
Preliminary Procedures Relieve the fuel system pressure. Refer to Fuel Pressure Relief . Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the fuel tank. Refer to Fuel Tank Replacement (AWD) , Fuel Tank Replacement (FWD) Disconnect the quick connectors. Refer to Plastic Collar Quick Connect Fitting Service .
1Fuel Feed Hose Procedure Disengage the hose from the plastic retainers.

Fuel Feed Hose Replacement

  1. Relieve the fuel system pressure. Refer to «Fuel Pressure Relief»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-pressure-relief) .
  2. Raise and suitably support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#general-information) .
  3. Disconnect the body wiring harness electrical connector (1) from the fuel pressure sensor (2).
  4. Wrap a shop towel around the fuel pressure sensor fitting in order to absorb any fuel that may leak out.
  5. Remove the fuel pressure sensor (1) from the fuel line.
  6. Remove and discard the fuel pressure sensor O-ring seal (2).
  1. Lubricate a NEW fuel pressure sensor O-ring seal with clean engine oil.
  2. Install the NEW fuel pressure sensor O-ring seal (2) onto the fuel line fitting.
  3. Install the fuel pressure sensor (1) to the fuel line. Tighten the sensor to 15 N.m (11 lb ft).
  4. Connect the body wiring harness electrical connector (1) to the fuel pressure sensor (2).
  5. Lower the vehicle.
  6. Use the following procedure in order to inspect for leaks: Turn the ignition ON, with the engine OFF, for 2 seconds. Turn the ignition OFF for 10 seconds. Turn the ignition ON, with the engine OFF. Inspect for fuel leaks.

Scheme 17

Scheme 17: Fuel Line Replacement - Chassis
Scheme 17: Fuel Line Replacement - Chassis
CalloutComponent Name
Preliminary Procedures Relieve the fuel system pressure. Refer to Fuel Pressure Relief . Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement . Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Disconnect the quick connectors. Refer to Metal Collar Quick Connect Fitting Service , and Plastic Collar Quick Connect Fitting Service .
1Fuel Feed Line Procedure Disengage the line from the plastic retainers.

Fuel Line Replacement - Chassis

Scheme 18

Scheme 18: Fuel Feed Intermediate Pipe Replacement
Scheme 18: Fuel Feed Intermediate Pipe Replacement
CalloutComponent Name
Preliminary Procedures Relieve the system pressure. Refer to Fuel Pressure Relief . Remove the fuel pump cover. Refer to Fuel Pump Cover Replacement .
1Fuel Feed Intermediate Pipe CAUTION: Refer to Fastener Caution . Procedure DISCARD the pipe when removed, and install a NEW pipe. Lubricate the pipes with silicon free engine oil. Refer to Adhesives, Fluids, Lubricants, and Sealers . Pressurize the fuel system and inspect for leaks. Tighten 30 N.m (22 lb ft)
CAUTION
Refer to Fastener Caution .

Fuel Feed Intermediate Pipe Replacement

Fuel Pump Replacement

Special Tools

EN-48896 High Pressure Fuel Pump Installation Alignment Gauge

  1. Relieve the low and high side fuel system pressure. Refer to «Fuel Pressure Relief»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-pressure-relief) .
  2. Disconnect the engine wiring harness electrical connector from the high pressure fuel pump.
  3. Remove the low pressure feed pipe. Refer to «Fuel Feed Pipe Replacement (With Direct Injection)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  4. Remove the high pressure pipe. Refer to «Fuel Feed Intermediate Pipe Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) . Discard this pipe.
  5. Remove and discard the high pressure fuel pump bolts (1).
  6. Remove the high pressure fuel pump (2).
  7. Remove and discard the high pressure fuel pump O-ring (3).
  8. Remove and discard the high pressure fuel pump gasket (4).
  9. Remove the high pressure fuel pump roller lifter (5).
  1. Use the EN-48896 alignment gauge to ensure that the camshaft lobe is in the base circle position. At base circle the tool will be flush with the head.
  2. Lubricate the high pressure fuel pump cylinder head bore and roller lifter with camshaft prelube GM P/N 12345501 (Canadian P/N 992704) or equivalent.
  3. Install the high pressure fuel pump roller lifter (5).
  4. Install a NEW high pressure fuel pump O-ring (3).
  5. Position the NEW high pressure fuel pump gasket (4) and bolts (1) to the fuel pump.
  6. Install the high pressure fuel pump (2). Force will be required while hand tightening the bolts.
  7. Tighten the high pressure fuel pump retaining bolts to 15 N.m (11 lb ft).
  8. Ensure the high pressure fuel pump and fuel rail fittings are clean prior to assembly.
  9. Install a NEW high pressure fuel pipe. Refer to «Fuel Feed Intermediate Pipe Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  10. Install the fuel feed pipe to the high pressure fuel pump. Refer to «Fuel Feed Pipe Replacement (With Direct Injection)»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  11. Connect the high pressure fuel pump wiring harness.
  12. Install the fuel tank cap.
  13. Inspect for leaks using the following procedure: Turn ON the ignition, with the engine OFF for 2 seconds. Turn OFF the ignition, for 10 seconds. Turn ON the ignition, with the engine OFF. Inspect for fuel leaks.
  14. Install the pressure relief cap to the fuel feed pipe.
  15. Install the high pressure fuel pump cover. Refer to «Fuel Pump Cover Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .

Scheme 19

Scheme 19: Fuel Injection Fuel Rail Assembly Replacement
Scheme 19: Fuel Injection Fuel Rail Assembly Replacement
CalloutComponent Name
Preliminary Procedures Relieve the fuel system pressure. Refer to Fuel Pressure Relief . Remove the intake manifold. Refer to Intake Manifold Replacement .
1Fuel Injection Fuel Rail Fastener (Qty: 4) CAUTION: Refer to Fastener Caution . Tighten 25Y (18 lb ft)
2Fuel Injection Fuel Rail Procedure Disconnect the electrical connector. It is necessary to rebuild the fuel injectors. Refer to Direct Fuel Injector Replacement .
CAUTION
Refer to Fastener Caution .

Fuel Injection Fuel Rail Assembly Replacement

Scheme 20

Scheme 20: Fuel Injection Fuel Rail Fuel Pressure Sensor Replacement
Scheme 20: Fuel Injection Fuel Rail Fuel Pressure Sensor Replacement
CalloutComponent Name
Preliminary Procedures Relieve the fuel system pressure. Refer to Fuel Pressure Relief . Remove the intake manifold. Refer to Intake Manifold Replacement .
1Fuel Pressure Sensor CAUTION: Refer to Fastener Caution . Procedure Disconnect the electrical connector. Tighten 32 N.m (24 lb ft)
CAUTION
Refer to Fastener Caution .

Fuel Injection Fuel Rail Fuel Pressure Sensor Replacement

Fuel Injector and Fuel Rail Replacement

CalloutComponent Name
Preliminary Procedures Relieve the fuel system pressure. Refer to Fuel Pressure Relief . Remove the intake manifold. Refer to Intake Manifold Replacement . Remove the fuel feed intermediate pipe. Refer to Fuel Feed Intermediate Pipe Replacement .
1Fuel Injection Fuel Rail Fastener (Qty: 4) CAUTION: Refer to Fastener Caution . Tighten 25 N.m (18 lb ft)
2Fuel Injection Fuel Rail Procedure Disconnect the electrical connector. Remove the fuel rail and injectors as an assembly. Refer to Fuel Rail and Injectors Removal . It is necessary to rebuild the fuel injectors. Refer to Fuel Rail and Injectors Cleaning and Inspection (LAF, LEA, or LUK) . Install the fuel rail and injectors as an assembly. Refer to Fuel Rail and Injectors Installation .
CAUTION
Refer to Fastener Caution .

Fuel Injector and Fuel Rail Replacement

  1. Relieve the high side fuel system pressure. Refer to «Fuel Pressure Relief»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-pressure-relief) .
  2. Remove the fuel injection fuel rail assembly. Refer to «Fuel Injector and Fuel Rail Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-injector-and-fuel-rail-replacement) .
  3. Remove and discard the fuel injector retainers (1).
  4. Clean and inspect the fuel rail and injectors. Refer to «Fuel Rail and Injectors Cleaning and Inspection (LAF, LEA, or LUK)»(/chevrolet/equinox/ii-2009-2015/remont/mechanical/#engine-mechanical-24l__fuel-rail-and-injectors-cleaning-and) .
  1. Install NEW fuel injector retainers (1).
  2. Install the fuel injection fuel rail assembly. Refer to «Fuel Injector and Fuel Rail Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions__fuel-injector-and-fuel-rail-replacement) .

Scheme 21

Scheme 21: Evaporative Emission Canister Purge Solenoid Valve Replacement
Scheme 21: Evaporative Emission Canister Purge Solenoid Valve Replacement
CalloutComponent Name
Preliminary Procedures Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement . Disconnect the evaporative emission pipes. Refer to Plastic Collar Quick Connect Fitting Service .
1Evaporative Emission Canister Purge Solenoid Fastener CAUTION: Refer to Fastener Caution . Tighten 25 N.m(18 lb ft)
2Evaporative Emission Canister Purge Solenoid Procedure Disconnect the electrical connector.
CAUTION
Refer to Fastener Caution .

Evaporative Emission Canister Purge Solenoid Valve Replacement

Scheme 22

Scheme 22: Evaporative Emission Canister Purge Tube Replacement
Scheme 22: Evaporative Emission Canister Purge Tube Replacement
CalloutComponent Name
Preliminary Procedure Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement . Disconnect the plastic quick connectors. Refer to Plastic Collar Quick Connect Fitting Service .
1Evaporative Emission Canister Purge Tube

Evaporative Emission Canister Purge Tube Replacement

  1. Remove the evaporative emission (EVAP) canister. Refer to «Evaporative Emission Canister Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  2. Rotate the EVAP canister vent valve counterclockwise to release from the locked position.
  3. Remove the vent valve from the EVAP canister.
  1. Insert the EVAP canister vent solenoid valve into the EVAP canister, with the valve aligned to the released position.
  2. Rotate vent valve clockwise to secure into the locked position.
  3. Install the EVAP canister. Refer to «Evaporative Emission Canister Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .

Scheme 23

Scheme 23: Evaporative Emission Line Replacement - Canister to Tank
Scheme 23: Evaporative Emission Line Replacement - Canister to Tank
CalloutComponent Name
Preliminary Procedure Remove the fuel tank. Refer to Fuel Tank Replacement (AWD) , Fuel Tank Replacement (FWD) . Disconnect the plastic quick connects. Refer to Plastic Collar Quick Connect Fitting Service .
1Evaporative Emission Line Canister to Tank Procedure Disconnect the electrical connector.

Evaporative Emission Line Replacement - Canister to Tank

Scheme 24

Scheme 24: Evaporative Emission Line Replacement - Engine to Chassis
Scheme 24: Evaporative Emission Line Replacement - Engine to Chassis
CalloutComponent Name
Preliminary Procedure Disconnect the evaporative emission lines. Refer to Plastic Collar Quick Connect Fitting Service . Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1Evaporative Emission Line Engine-Chassis Procedure Remove the line from the plastic retainers.

Evaporative Emission Line Replacement - Engine to Chassis

  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#general-information) .
  2. Disconnect the EVAP canister fresh air hose/pipe from the fuel tank fresh air hose/pipe (2). Refer to «Plastic Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  3. Disconnect the EVAP canister vent hose/pipe from the EVAP canister. Refer to «Plastic Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  4. Disconnect the EVAP canister purge hose/pipe (1) from the EVAP canister.
  5. Remove the EVAP canister-to-underbody nuts (3).
  6. Lower the EVAP canister.
  7. Disconnect the EVAP vent solenoid electrical connector (1).
  8. Remove the EVAP canister (4) from the vehicle.
  1. Connect the EVAP vent solenoid electrical connector (1).
  2. Install the EVAP canister (4) to the underbody of the vehicle.
  3. Install the EVAP canister-to-underbody nuts (3). Tighten Tighten the nuts to 9 N.m (80 lb in).
  4. Connect the EVAP canister purge hose/pipe (1) to the EVAP canister.
  5. Connect the EVAP canister vent hose/pipe (3) to the EVAP canister. Refer to «Plastic Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  6. Connect the EVAP canister fresh air hose/pipe to the fuel tank fresh air hose/pipe (2). Refer to «Plastic Collar Quick Connect Fitting Service»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  7. Lower the vehicle.

Evaporative Emission System Cleaning

Special Tools

J 41413-200 Evaporative Emissions System Tester

For equivalent regional tools, refer to Special Tools .

Inspection Procedure

CAUTIONUse the Evaporative Emission (EVAP) System Tester (EEST) GE 41413-A in order to provide a clean, dry, low pressure nitrogen gas source. Do not substitute any other pressurized source, gas or otherwise. Damage may result to the EVAP system, test equipment or cause a safety risk.
  1. Turn OFF the ignition.
  2. Remove the EVAP canister purge valve. Refer to «Evaporative Emission Canister Purge Solenoid Valve Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  3. Lightly tap the EVAP canister purge valve on a hard surface.
  4. Inspect for carbon particles exiting either of the vacuum ports. If no carbon particles were detected, but a blockage was detected during a diagnostic procedure, install the original EVAP canister purge valve. Continue with the cleaning procedure. If carbon particles are found during the inspection procedure, continue with the cleaning procedure. If a diagnostic procedure directed you to replace the EVAP canister purge valve and no carbon particles were detected, replace the EVAP canister purge valve. Return to the published service procedure.

Cleaning Procedure

  1. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(/chevrolet/equinox/ii-2009-2015/remont/ignition-switchsteering-lock/#general-information) .
  2. Remove the EVAP canister. Refer to «Evaporative Emission Canister Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  3. Turn OFF the main valve on the J 41413-200 tester.
  4. Disconnect the hose from the diagnostic station pressure regulator.
  5. Using a section of vacuum hose, connect one end onto the EVAP pressure/purge diagnostic station pressure regulator.
  6. Connect the other end of the vacuum hose to the canister side of the purge pipe.
  7. Turn ON the main nitrogen cylinder valve and continue to discharge nitrogen for 15 seconds.
  8. If the nitrogen does not clear the blockage, replace the purge pipe.
  9. Return the EVAP pressure/purge diagnostic station to the stations original condition.
  10. Install a new EVAP canister. Refer to «Evaporative Emission Canister Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  11. Lower the vehicle.
  12. Install a new EVAP canister purge valve. Refer to «Evaporative Emission Canister Purge Solenoid Valve Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-30l-repair-instructions) .
  13. Return to the diagnostic table that sent you here.
  1. Remove the intake manifold cover. Refer to «Intake Manifold Cover Replacement»(/chevrolet/equinox/ii-2009-2015/remont/mechanical/#engine-mechanical-24l) .
  2. Disconnect the engine wiring harness electrical connectors (1) from the ignition coil(s) (2).
  3. Remove the ignition coil bolt(s).
  4. Remove the ignition coil(s).
  1. Install the ignition coil(s).
  2. Install the ignition coil bolt(s) and tighten to 10 N.m (89 lb in).
  3. Connect the engine wiring harness electrical connector(s) (1) to the ignition coil(s) (2).
  4. Install the intake manifold cover. Refer to «Intake Manifold Cover Replacement»(/chevrolet/equinox/ii-2009-2015/remont/mechanical/#engine-mechanical-24l) .
CAUTIONThis engine has aluminum cylinder heads. Do not remove the spark plugs from a hot engine, allow it to cool first. Removing the spark plugs from a hot engine may cause spark plug thread damage or cylinder head damage.
  1. Remove the ignition coil(s). Refer to «Ignition Coil Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .
  2. Remove the spark plugs using a 5/8 inch spark plug socket.
  1. Install the spark plugs. Specification The spark plug gap is 1.0 mm (0.040 in). Tighten Tighten the plugs to 20 N.m (15 lb ft).
  2. Install the ignition coil(s). Refer to «Ignition Coil Replacement»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-repair-instructions) .

Spark Plug Usage

  1. Ensure that the correct spark plug is installed. An incorrect spark plug causes driveability conditions. Refer to the Electronic Parts Catalog.
  2. Ensure that the spark plug has the correct heat range. An incorrect heat range causes the following conditions: Spark plug fouling - colder plug Pre-ignition causing spark plug and/or engine damage - hotter plug

Spark Plug Inspection

  1. Inspect the terminal post (1) for damage. Inspect for a bent or broken terminal post (1). Test for a loose terminal post (1) by twisting and pulling the post. The terminal post (1) should NOT move.
  2. Inspect the insulator (2) for flashover or carbon tracking, soot. This is caused by the electrical charge traveling across the insulator (2) between the terminal post (1) and ground. Inspect for the following conditions: Inspect the spark plug boot for damage. Inspect the spark plug recess area of the cylinder head for moisture, such as oil, coolant, or water. A spark plug boot that is saturated causes arcing to ground.
  3. Inspect the insulator (2) for cracks. All or part of the electrical charge may arc through the crack instead of the electrodes (3, 4).
  4. Inspect for evidence of improper arcing. Measure the gap between the center electrode (4) and the side electrode (3) terminals. Refer to «Ignition System Specifications»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-specifications__ignition-system-specifications) . An excessively wide electrode gap can prevent correct spark plug operation. Inspect for the correct spark plug torque. Refer to «Ignition System Specifications»(/chevrolet/equinox/ii-2009-2015/remont/testing-diagnostics/#engine-controlsfuel-24l-specifications__ignition-system-specifications) . Insufficient torque can prevent correct spark plug operation. An over torqued spark plug, causes the insulator (2) to crack. Inspect for signs of tracking that occurred near the insulator tip instead of the center electrode (4). Inspect for a broken or worn side electrode (3). Inspect for a broken, worn, or loose center electrode (4) by shaking the spark plug. A rattling sound indicates internal damage. A loose center electrode (4) reduces the spark intensity. Inspect for bridged electrodes (3, 4). Deposits on the electrodes (3, 4) reduce or eliminates the gap. Inspect for worn or missing platinum pads on the electrodes (3, 4) If equipped. Inspect for excessive fouling.
  5. Inspect the spark plug recess area of the cylinder head for debris. Dirty or damaged threads can cause the spark plug not to seat correctly during installation.

Spark Plug Visual Inspection

  1. Normal operation-Brown to grayish-tan with small amounts of white powdery deposits are normal combustion by-products from fuels with additives.
  2. Carbon Fouled-Dry, fluffy black carbon, or soot caused by the following conditions: Rich fuel mixtures Leaking fuel injectors Excessive fuel pressure Restricted air filter element Incorrect combustion Reduced ignition system voltage output Weak coils Worn ignition wires Incorrect spark plug gap Excessive idling or slow speeds under light loads can keep spark plug temperatures so low that normal combustion deposits may not burn off.
  3. Deposit Fouling-Oil, coolant, or additives that include substances such as silicone, very white coating, reduces the spark intensity. Most powdery deposits will not effect spark intensity unless they form into a glazing over the electrode.

Scheme 25

Scheme 25: Crankshaft Position Sensor Replacement
Scheme 25: Crankshaft Position Sensor Replacement
CalloutComponent Name
Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1Crankshaft Position Sensor Fastener CAUTION: Refer to Fastener Caution . Tighten 10 N.m (89 lb in)
2Crankshaft Position Sensor Procedure Disconnect the electrical connector.
CAUTION
Refer to Fastener Caution .

Crankshaft Position Sensor Replacement

Scheme 26

Scheme 26: Camshaft Position Sensor Replacement - Intake
Scheme 26: Camshaft Position Sensor Replacement - Intake
CalloutComponent Name
Preliminary Procedure Remove the fuel pump cover. Refer to Fuel Pump Cover Replacement
1Camshaft Position Sensor Fastener CAUTION: Refer to Fastener Caution Tighten 10 N.m (89 lb in)
2Camshaft Position Sensor Procedure Disconnect the electrical connector.
CAUTION
Refer to Fastener Caution

Camshaft Position Sensor Replacement - Intake

Scheme 27

Scheme 27: Camshaft Position Sensor Replacement - Exhaust
Scheme 27: Camshaft Position Sensor Replacement - Exhaust
CalloutComponent Name
Preliminary Procedure Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
1Camshaft Position Sensor Fastener CAUTION: Refer to Fastener Caution . Tighten 10 N.m(89 lb in)
2Camshaft Position Sensor - Exhaust Procedure Lube the O-ring with clean engine oil. Disconnect the electrical connector.
CAUTION
Refer to Fastener Caution .

Camshaft Position Sensor Replacement - Exhaust

Scheme 28

Scheme 28: Camshaft Position Actuator Solenoid Valve Replacement
Scheme 28: Camshaft Position Actuator Solenoid Valve Replacement
CalloutComponent Name
Preliminary Procedure Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement
1Fastener (Qty: 2) CAUTION: Refer to Fastener Caution Tighten 10 N.m (89 lb in)
2Camshaft Position Actuator Solenoid Valve Replacement Procedure Disconnect the camshaft position actuator solenoid valve harness connector. Clean the cylinder head mating surfaces before assembly. Lubricate the camshaft position actuator solenoid valve O-ring seals with clean engine oil. TIP: Replace only the Intake or exhaust camshaft position actuator solenoid as necessary.
CAUTION
Refer to Fastener Caution

Camshaft Position Actuator Solenoid Valve Replacement

Scheme 29

Scheme 29: Knock Sensor Replacement
Scheme 29: Knock Sensor Replacement
CalloutComponent Name
Preliminary Procedure Remove the starter. Refer to Starter Replacement (LAF or LEA)
1Knock Sensor Fastener CAUTION: Refer to Fastener Caution . Tighten 25 N.m (18 lb ft)
2Knock Sensor Procedure Disconnect the electrical connector.
CAUTION
Refer to Fastener Caution .

Knock Sensor Replacement

Scheme 30

Scheme 30: Flexible Fuel Sensor Replacement
Scheme 30: Flexible Fuel Sensor Replacement
CalloutComponent Name
Preliminary Procedure Relieve the fuel system pressure. Refer to Fuel Pressure Relief Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
1Plastic Retainers Procedure Squeeze the plastic retainers from the back in order to release.
2Flex Fuel Sensor Procedure Disconnect the fuel line connectors. Refer to Plastic Collar Quick Connect Fitting Service . Release the plastic retaining tab. Disconnect the electrical connector.

Flexible Fuel Sensor Replacement

Scheme 31

Scheme 31: Secondary Air Injection Check Valve Replacement
Scheme 31: Secondary Air Injection Check Valve Replacement
CalloutComponent Name
Preliminary Procedure Remove the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement (LEA) .
1Secondary Air Injection Check Valve Bolt (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 10 N.m (89 lb in)
2Secondary Air Injection Check Valve Nut (Qty: 2) Tighten 22 N.m (16 lb ft)
3Secondary Air Injection Check Valve Procedure Disconnect the electrical connector.
4Secondary Air Injection Check Valve Gasket
CAUTION
Refer to Fastener Caution .

Secondary Air Injection Check Valve Replacement

Scheme 32

Scheme 32: Secondary Air Injection Check Valve Pipe Replacement
Scheme 32: Secondary Air Injection Check Valve Pipe Replacement
CalloutComponent Name
Preliminary Procedure Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
1Secondary Air Injection Check Valve Pipe Fastener CAUTION: Refer to Fastener Caution . Tighten 10 N.m(89 lb in).
2Secondary Air Injection Check Valve Pipe Procedure Disconnect the quick connect fittings by squeezing both sides.
CAUTION
Refer to Fastener Caution .

Secondary Air Injection Check Valve Pipe Replacement

Scheme 33

Scheme 33: Secondary Air Injection Pipe Replacement
Scheme 33: Secondary Air Injection Pipe Replacement
CalloutComponent Name
Preliminary Procedure Remove the secondary air injection check valve. Refer to Secondary Air Injection Check Valve Replacement
1Secondary Air Injection Pipe Bolt (Qty: 4) CAUTION: Refer to Fastener Caution . Tighten 10 N.m(89 lb in).
2Secondary Air Injection Pipe
CAUTION
Refer to Fastener Caution .

Secondary Air Injection Pipe Replacement

Scheme 34

Scheme 34: Secondary Air Injection Pump Inlet Hose Replacement
Scheme 34: Secondary Air Injection Pump Inlet Hose Replacement
CalloutComponent Name
1Secondary Air Injection Inlet Pump Hose Procedure Disconnect the quick connect fittings by squeezing both sides.

Secondary Air Injection Pump Inlet Hose Replacement

Scheme 35

Scheme 35: Secondary Air Injection Pump Replacement
Scheme 35: Secondary Air Injection Pump Replacement
CalloutComponent Name
Preliminary Procedure Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Disconnect the secondary injection pump inlet hose. Refer to Secondary Air Injection Pump Inlet Hose Replacement Disconnect the secondary injection check valve pipe. Refer to Secondary Air Injection Check Valve Pipe Replacement
1Secondary Air Injection Pump Bolt (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 22 N.m(16 lb ft).
2Secondary Air Injection Pump
CAUTION
Refer to Fastener Caution .

Secondary Air Injection Pump Replacement

Scheme 36

Scheme 36: Air Cleaner Element Replacement
Scheme 36: Air Cleaner Element Replacement
CalloutComponent Name
Preliminary Procedure Disconnect the air cleaner outlet duct from the air cleaner. Refer to Air Cleaner Outlet Duct Replacement .
1Air Cleaner Fastener (Qty: 4) CAUTION: Refer to Fastener Caution . Tighten 2 N.m (18 lb in)
2Air Cleaner Element Procedure Disconnect the mass airflow with intake air temperature sensor. Disconnect the throttle inlet absolute pressure sensor.
CAUTION
Refer to Fastener Caution .

Air Cleaner Element Replacement

Scheme 37

Scheme 37: Air Cleaner Assembly Replacement
Scheme 37: Air Cleaner Assembly Replacement
CalloutComponent Name
Preliminary Procedures Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
1Air Cleaner Assembly Bolt CAUTION: Refer to Fastener Caution . Tighten 8 N.m (71 lb in)
2Air Cleaner Assembly Bolt (Qty: 2) Tighten 6 N.m (53 lb in)
3Air Cleaner Assembly Procedure Disconnect any electrical connectors as needed. Transfer any parts as needed.
CAUTION
Refer to Fastener Caution .

Air Cleaner Assembly Replacement

Scheme 38

Scheme 38: Air Cleaner Outlet Duct Replacement
Scheme 38: Air Cleaner Outlet Duct Replacement
CalloutComponent Name
Preliminary Procedure Disconnect the PCV valve from the resonator. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .
1Resonator Clamps (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 5 N.m (44 lb in)
2Air Cleaner Outlet Resonator
CAUTION
Refer to Fastener Caution .

Air Cleaner Outlet Duct Replacement

Air Cleaner Outlet Resonator Replacement

CalloutComponent Name
Preliminary Procedure Disconnect the PCV valve from the resonator. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .
1Resonator Clamps (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 5 N.m (44 lb in)
2Air Cleaner Outlet Resonator
CAUTION
Refer to Fastener Caution .

Air Cleaner Outlet Resonator Replacement

See also:
• Battery Negative Cable Disconnection and Connection
• Control Module References
• Diagnostic Trouble Code (DTC) List - Vehicle
• Fastener Caution
• Intake Manifold Cover Replacement
• Adhesives, Fluids, Lubricants, and Sealers
• Lifting and Jacking the Vehicle
• Instrument Panel Insulator Panel Replacement - Left Side (Equinox)
• Instrument Panel Insulator Panel Replacement - Left Side (Terrain)
• Communication Interface Module Replacement
• Special Tools
• Gasoline/Gasoline Vapors Warning
• Fuel Pressure Relief
• Special Tools
• Exhaust Muffler Replacement
• Propeller Shaft Replacement
• Battery Disconnect Warning
• Fuel Tank Replacement (FWD)
• Fuel Tank Fuel Pump Module Replacement
• Rear Wheelhouse Panel Liner Replacement (Terrain)
• Intake Manifold Cover Replacement
• Adhesives, Fluids, Lubricants, and Sealers
• Fuel Rail and Injectors Removal
• Fuel Rail and Injectors Cleaning and Inspection (LAF, LEA, or LUK)
• Fuel Rail and Injectors Installation
• Ignition System Specifications
• Air Cleaner Outlet Resonator Replacement
• Air Cleaner Outlet Duct Replacement
• Fuel Pressure Relief
• Metal Collar Quick Connect Fitting Service
• Fuel Tank Draining
• Fuel Tank Fuel Pump Module Replacement
• Fuel Injector and Fuel Rail Replacement

More articles — Engine Performance