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Engine Cooling System: Other Buick LaCrosse II facelift

Cooling System (Mechanical) 5 illustrations ~1845 words

Reference Information

Schematic Reference

Engine Heating/Cooling Schematics

Connector End View Reference

  1. «COMPONENT CONNECTOR END VIEWS - INDEX»(ref-623611)
  2. «Electrical Center Identification Views»(ref-622040-S12530224312014061000000)

Description and Operation

Cooling Fan Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(ref-621979-S25489769122014061000000)
  2. «Connector Repairs»(ref-621979-S38632404432014061000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
  4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

  1. Ignition ON, verify an audible click is heard or felt from each cooling fan relay when commanding the cooling fans ON and OFF with a scan tool.
  2. Engine operating, observe the DTC information with a scan tool. DTC P0480, P0481, P0691, P0692, P0693, or P0694 should not set.
  3. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Relay Replacement (Within an Electrical Center)»(ref-622010-S10972732172014061000000) , «Relay Replacement (Attached to Wire Harness)»(ref-622010-S17213005672014061000000)
  2. «Control Module References»(ref-621985-S26077645002014061000000) for ECM replacement, setup, and programming

Schematic Reference

Engine Heating/Cooling Schematics

Connector End View Reference

  1. «COMPONENT CONNECTOR END VIEWS - INDEX»(ref-623611)
  2. «Electrical Center Identification Views»(ref-622040-S12530224312014061000000)

Description and Operation

Cooling Fan Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(ref-621979-S25489769122014061000000)
  2. «Connector Repairs»(ref-621979-S38632404432014061000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
  4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON.
  2. Verify an audible click is heard or felt from each cooling fan relay when commanding the cooling fans ON and OFF with a scan tool. If a click is not heard or felt at one or more of the relays Refer to Circuit/System Testing (below). If a click is heard or felt at each of the relays
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  4. Verify the DTC does not set. If the DTC sets Refer to Circuit/System Testing (below). If the DTC does not set
  5. All OK.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Relay Replacement (Within an Electrical Center)»(ref-622010-S10972732172014061000000) , «Relay Replacement (Attached to Wire Harness)»(ref-622010-S17213005672014061000000)
  2. «Control Module References»(ref-621985-S26077645002014061000000) for ECM replacement, setup, and programming

Schematic Reference

Engine Controls Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

  1. «Cooling Fan Description and Operation»(ref-621992-S04727174932014061000000)
  2. «Instrument Cluster Description and Operation»(ref-621976-S04993836282014061000000)
  3. «Indicator/Warning Message Description and Operation»(ref-621976-S19677268922014061000000)

Electrical Information Reference

  1. «Circuit Testing»(ref-621979-S25489769122014061000000)
  2. «Connector Repairs»(ref-621979-S38632404432014061000000)
  3. «Wiring Repairs»(ref-621979-S02064091202014061000000)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

K20 Engine Control Module: Scan Tool Information for scan tool information

Note. If DTC P0480, P0481, P0691, P0692, P0693, or P0694 is set, diagnose that DTC first.

  1. Observe the engine coolant level. The engine coolant level should be within the operating range. Refer to «Cooling System Draining and Filling (Static Fill)»(ref-621992-S19816140002014061000000) , «Cooling System Draining and Filling (GE 47716)»(ref-621992-S05335391822014061000000) .
  2. Ensure that the vehicle has the correct engine coolant with correct concentration and is not old, contaminated, or contains additives. Refer to «Cooling System Draining and Filling (Static Fill)»(ref-621992-S19816140002014061000000) , «Cooling System Draining and Filling (GE 47716)»(ref-621992-S05335391822014061000000) .
  3. Inspect the cooling system for the following: Leaks Kinked or pinched hoses, especially at the radiator Loose, missing, or damaged radiator air seals or deflectors Air flow obstructions or bent fins at the radiator or the A/C condenser-Refer to «Symptoms - Engine Cooling»(ref-621992-S41984845052014061000000) .
  4. Command the cooling fans ON and OFF, low and high speed. The engine cooling fans should turn ON and OFF with each command. If the cooling fans do not function as indicated, refer to «Cooling Fan Inoperative (LHU)»(ref-621992-S29352561392014061000000) , «Cooling Fan Inoperative (LUK or LFX)»(ref-621992-S10970095942014061000000) .

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Identifying Intermittent Conditions

Many intermittent conditions occur with harness or connector movement due to engine torque, rough pavement, vibration or physical movement of a component. Refer to the following for a list to help isolate an intermittent condition

  1. Water intrusion in connectors, terminals, or components
  2. Poor connector mating
  3. Terminal contact
  4. High circuit or component resistance-High resistance can include any resistance, regardless of the amount, which can interrupt the operation of the component.
  5. Harness' that are routed too tight, or chaffed circuits
  6. High or low ambient temperatures
  7. High or low engine coolant temperatures
  8. High underhood temperatures
  9. Heat build up in components or circuits due to circuit resistance, poor terminal contact, or high electrical load
  10. High or low system voltage
  11. High vehicle load conditions
  12. Rough road surface
  13. Electro-magnetic interference (EMI)/circuit interference from relays, solenoids or other electrical surge
  14. Incorrect installation of non-factory, aftermarket, or after factory add on accessories

If an intermittent fault is detected, refer to Testing for Intermittent Conditions and Poor Connections for specific strategies in diagnosing intermittent conditions.

Schematic Reference

  1. «Engine Heating/Cooling Schematics»(ref-621992-S29513388622014061000000)
  2. «Electrical Center Identification Views»(ref-622040-S12530224312014061000000)

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Cooling Fan Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(ref-621979-S25489769122014061000000)
  2. «Connector Repairs»(ref-621979-S38632404432014061000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
  4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON, observe the DTC information with a scan tool. Verify that DTCs P0480, P0481, P0691, P0692, P0693 or P0694 are not set. If any of the DTCs are set refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(ref-621960-S33076509982014061000000) .
  2. Ignition ON, observe the scan tool Cooling Fan Relay 1 and Cooling Fan Relays 2 and 3 Command parameters. The parameters should display OFF.
  3. Ignition ON, observe that the fans are not ON.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Relay Replacement (Within an Electrical Center) , Relay Replacement (Attached to Wire Harness)

Schematic Reference

Engine Heating/Cooling Schematics

Connector End View Reference

  1. «COMPONENT CONNECTOR END VIEWS - INDEX»(ref-623611)
  2. «Electrical Center Identification Views»(ref-622040-S12530224312014061000000)

Description and Operation

Cooling Fan Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(ref-621979-S25489769122014061000000)
  2. «Connector Repairs»(ref-621979-S38632404432014061000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
  4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON.
  2. Verify that DTC P0480, P0481, P0691, P0692, P0693, or P0694 is not set. If a DTC is set Refer to «DTC P0480, P0481, P0691, P0692, P0693, or P0694 (LHU)»(ref-621992-S18405714322014061000000) , «DTC P0480, P0481, P0691, P0692, P0693, or P0694 (LUK or LFX)»(ref-621992-S18989683322014061000000) . If no DTC is set
  3. Verify the scan tool parameters listed below display OFF: Cooling Fan Relay 1 Command Cooling Fan Relays 2 and 3 Command If a scan tool parameter displays ON Refer to Diagnostic Aids and «Symptoms - Engine Cooling»(ref-621992-S41984845052014061000000) for further diagnosis. If both scan tool parameters display OFF
  4. Verify that the fans are not activated. If a fan is operating Refer to Circuit/System Testing (below). If both fans are OFF
  5. All OK

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Relay Replacement (Within an Electrical Center) , Relay Replacement (Attached to Wire Harness)

Schematic Reference

Engine Heating/Cooling Schematics

Connector End View Reference

COMPONENT CONNECTOR END VIEWS - INDEX

Description and Operation

Cooling Fan Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(ref-621979-S25489769122014061000000)
  2. «Connector Repairs»(ref-621979-S38632404432014061000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
  4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON, observe the DTC information with a scan tool. DTC P0480 or P0481, P0691, P0692, P0693, or P0694 should not set. If a DTC is set, refer to «Diagnostic Trouble Code (DTC) List - Vehicle»(ref-621960-S33076509982014061000000) .
  2. Command the cooling fans ON and OFF at low, medium, and high speed with a scan tool. Both cooling fans should turn ON and OFF in each of the commanded states. Refer to «Diagnostic Aids»(ref-621992-S05550189372014061000000) .

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Relay Replacement (Within an Electrical Center)»(ref-622010-S10972732172014061000000) , «Relay Replacement (Attached to Wire Harness)»(ref-622010-S17213005672014061000000)
  2. «Engine Coolant Fan Motor Replacement»(ref-621992-S38084673852014061000000)

Schematic Reference

Engine Heating/Cooling Schematics

Connector End View Reference

  1. «COMPONENT CONNECTOR END VIEWS - INDEX»(ref-623611)
  2. «Electrical Center Identification Views»(ref-622040-S12530224312014061000000)

Description and Operation

Cooling Fan Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(ref-621979-S25489769122014061000000)
  2. «Connector Repairs»(ref-621979-S38632404432014061000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
  4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Scan Tool Reference

Control Module References for scan tool information

  1. Ignition ON.
  2. Verify that DTC P0480, P0481, P0691, P0692, P0693, or P0694 is not set. If a DTC is set Refer to «DTC P0480, P0481, P0691, P0692, P0693, or P0694 (LHU)»(ref-621992-S18405714322014061000000) , «DTC P0480, P0481, P0691, P0692, P0693, or P0694 (LUK or LFX)»(ref-621992-S18989683322014061000000) . If no DTCs is set
  3. Verify that both cooling fans turn ON and OFF and operate at low and high speed, when commanding the appropriate cooling fan relays ON and OFF with a scan tool. If a cooling fan does not operate Refer to Circuit/System Testing (below). If both cooling fans operate
  4. All OK.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Relay Replacement (Within an Electrical Center)»(ref-622010-S10972732172014061000000) , «Relay Replacement (Attached to Wire Harness)»(ref-622010-S17213005672014061000000)
  2. «Engine Coolant Fan Shroud Replacement»(ref-621992-S40544321952014061000000)

Engine Overheating

StepActionYesNo
DEFINITION: The engine temperature lamp comes on and stays on, or temperature gauge shows hot, or coolant overflows from the surge tank onto the ground while the engine is running.
1Check for a loss of coolant. Refer to Loss of Coolant . Is there a loss of coolant?Go to Step 2Go to Step 3
2Fill the system to the specified level. Does the engine still overheat?Go to Step 3System OK
3Check for kinked or pinched surge tank hoses, especially at the radiator. Are any surge tank hoses kinked or pinched?Go to Step 4Go to Step 5
4Relieve any kinks by rerouting the hoses. Replace the hoses, if necessary. Does the engine still overheat?Go to Step 5System OK
5Check for loose, missing, or damaged radiator air seals or deflectors. Are there any loose, missing, or damaged radiator air seals or deflectors?Go to Step 6Go to Step 7
6Repair or replace any loose, missing, or damaged radiator air seals or deflectors. Does the engine still overheat?Go to Step 7System OK
7Check the coolant concentration. Does the coolant concentration test correctly?Go to Step 9Go to Step 8
8Replace the coolant, if necessary. Does the engine still overheat?Go to Step 9System OK
9NOTE: Use the correct pressure cap. Check the system for loss of pressure. Refer to Pressure Cap Testing Is there a loss of pressure?Go to Step 10Go to Step 11
10Repair any leaks, as necessary. Does the engine still overheat?Go to Step 11System OK
11Check for a faulty engine coolant temperature sensor. Is the engine coolant temperature sensor faulty?Go to Step 12Go to Step 13
12Replace the engine coolant temperature sensor. Refer to Engine Coolant Temperature Sensor Replacement (LFW or LFX) Does the engine still overheat?Go to Step 13System OK
13Check the radiator for any air flow obstructions or bent fins. Is there any airflow obstruction or bent fins?Go to Step 14Go to Step 15
14Remove or relocate add-on parts that block air flow to the radiator. Clean any debris from the radiator core. Does the engine still overheat?Go to Step 15System OK
15Check for any blocked cooling system passages. Are there any blocked cooling system passages?Go to Step 16Go to Step 17
16Remove any obstruction. Flush the cooling system, as required. Refill the coolant. Does the engine still overheat?Go to Step 17System OK
17Check for an inoperative cooling fan. Is the cooling fan inoperative?Go to Step 18Go to Step 19
18Replace the cooling fan. Refer to Engine Coolant Thermostat Housing Replacement (LUK) , Engine Coolant Thermostat Housing Replacement (LFX) . Does the engine still overheat?Go to Step 19System OK
19Check for a thermostat that is stuck closed. Is the thermostat stuck closed?Go to Step 20Go to Step 21
20Replace the thermostat. Refer Engine Coolant Thermostat Replacement (LUK) , Engine Coolant Thermostat Replacement (V6) . Does the engine still overheat?Go to Step 21System OK
21Check for a faulty water pump. The impeller blades may be eroded or broken. Is the water pump faulty?Go to Step 22
22Replace the water pump. Refer to Water Pump Replacement (L4) , Water Pump Replacement (LFX) . Does the engine still overheat?System OK
NOTE
Use the correct pressure cap.

Engine Overheating

Loss of Coolant

StepActionYesNo
DEFINITION: The cooling system is losing coolant either internally or externally.
1Were you sent here from Symptoms or another diagnostic table?Go to Step 2Go to Symptoms - Engine Cooling
2Repair any present DTCs. Refer to Diagnostic System Check - Vehicle . Is the action complete?Go to Step 3
3Inspect the coolant level. Is the coolant at the proper level?Go to Step 5Go to Step 4
4Fill the cooling system to the proper level. Refer to Cooling System Draining and Filling (Static Fill) , Cooling System Draining and Filling (GE 47716) . Is the action complete?Go to Step 5
5If the engine is suspected to have a coolant leak into a cylinder, the coolant can hydraulically lock the engine. Does the engine crankshaft rotate?Go to Step 6Go to Step 28
6Engine overheating can cause a loss of coolant. Is the engine overheating?Go to Step 29Go to Step 7
7Extended operation with a low coolant level can cause engine internal component failure. Is the engine knocking?Go to Step 31Go to Step 8
8Idle the engine at normal operating temperature. Inspect for heavy white smoke coming out of the exhaust pipe. Is a heavy white smoke present from the exhaust pipe?Go to Step 9Go to Step 10
9Coolant in the exhaust system creates a distinctive, burning coolant odor in the exhaust. Condensation in the exhaust system can cause an odorless white smoke during engine warm up. Does the white smoke have a burning coolant type odor?Go to Step 30Go to Step 10
10WARNING: Refer to Moving Parts and Hot Surfaces Warning . With the engine idling, inspect the surge tank.Does the surge tank discharge coolant while the engine is idling?Go to Step 15Go to Step 11
11Visually inspect the hoses, pipes and hose clamps at the following locations: Coolant surge tank Heater core Radiator Are any of the hoses, clamps or pipes leaking?Go to Step 22Go to Step 12
12Visually inspect the following components: The coolant pressure cap The core plugs The cylinder head gaskets The engine block The intake manifold The radiator The thermostat housing The water pump Are any of the listed components leaking?Go to Step 22Go to Step 13
13Pressure test the cooling system. Refer to Cooling System Leak Testing . With the cooling system pressurized, visually inspect the components listed in steps 11 and 12. Are any leaks present?Go to Step 22Go to Step 14
14Pressure test the coolant pressure cap. Refer to Pressure Cap Testing . Does the coolant pressure cap hold pressure?Go to Step 16Go to Step 23
15Pressure test the coolant pressure cap. Refer to Pressure Cap Testing . Does the coolant pressure cap hold pressure?Go to Step 32Go to Step 23
16Inspect for the following conditions: A coolant smell inside of the vehicle Coolant in the HVAC module drain tube Coolant on the vehicle floor covering near the HVAC module Is coolant present?Go to Step 24Go to Step 17
17Add 30 ml (1 oz) of Extended Life Coolant Leak Detection Dye to the cooling system for each 15 liters (4 gallons) of coolant. Refer to Adhesives, Fluids, Lubricants, and Sealers , and Approximate Fluid Capacities . Start the vehicle and allow the engine to reach normal operating temperature. Shut the engine off. Use J 42220 Universal 12V Leak Detection Lamp to visually inspect the components listed in steps 11 and 12. Are any leaks present?Go to Step 22Go to Step 18
18Use J 42220 Universal 12V Leak Detection Lamp to inspect for the following conditions: Coolant dye in the HVAC module drain tube Coolant dye on the vehicle floor covering near the HVAC module Is coolant dye present?Go to Step 24Go to Step 19
19Inspect the underside of the engine oil fill cap for a gray/white milky substance. Is there a milky substance on under the oil fill cap?Go to Step 20Go to Step 21
20Inspect the engine oil fluid level indicator for a gray/white milky substance. Is there a milky substance on the engine oil fluid level indicator?Go to Step 30Go to Step 21
21Inspect the automatic transmission oil fluid level indicator, if equipped, for a gray/white milky substance. Is there a milky substance on the automatic transmission fluid level indicator?Go to Step 25Go to Step 33
22Repair or replace the leaking component. Refer to the appropriate repair. Is the repair complete?Go to Step 33
23Replace the coolant pressure cap. Is the repair complete?Go to Step 33
24Replace the heater core. Refer to Heater Core Replacement . Is the repair complete?Go to Step 33
25Remove the transmission oil cooler lines from the radiator. Pressure test the cooling system. Refer to Cooling System Leak Testing . Inspect the transmission oil cooler for coolant. Is coolant present?Go to Step 26Go to Step 27
26Replace the radiator. Refer to Radiator Replacement (LFX LUK) . Service the automatic transmission. Refer to Engine Coolant/Water in Transmission Is the repair complete?Go to Step 33
27Install the cooler lines to the radiator. Is the action complete?Go to Step 33
28Repair the engine no crank condition. Refer to Engine Will Not Crank - Crankshaft Will Not Rotate Is the repair complete?Go to Step 33
29Repair the engine overheating condition. Refer to Engine Overheating . Is the repair complete?Go to Step 33
30Repair the engine internal coolant leak. Refer to Coolant in Combustion Chamber , or Coolant in Engine Oil Is the repair complete?Go to Step 33
31Repair the engine knock. Refer to Lower Engine Noise, Regardless of Engine Speed Is the repair complete?Go to Step 33
32Repair the combustion pressure in the cooling system problem. Refer to Coolant in Combustion Chamber Is the repair complete?Go to Step 33
33Operate the system in order to verify the repair. Did you find and correct the condition?System OKGo to Step 2
WARNING
Refer to Moving Parts and Hot Surfaces Warning .

Loss of Coolant

Electrical Information Reference

  1. «Circuit Testing»(ref-621979-S25489769122014061000000)
  2. «Connector Repairs»(ref-621979-S38632404432014061000000)
  3. «Testing for Intermittent Conditions and Poor Connections»(ref-621979-S12070404672014061000000)
  4. «Wiring Repairs»(ref-621979-S02064091202014061000000)

Perform the Diagnostic Repair Verification after completing the diagnostic repair.

Filling Procedure

  1. Raise and support the vehicle.
  2. Tighten the radiator drain cock to 2 N.m (18 lb in).
  3. Lower the vehicle.
  4. Slowly fill the radiator with a 50/50 coolant mixture until the coolant level reaches the base of the radiator surge tank. Refer to «Approximate Fluid Capacities»(ref-621957-S13658820742014061000000) .
  5. Allow 30 seconds for the coolant level to stabilize and continue to fill the coolant filler neck until the level stabilizes for at least 2 minutes.
  6. Start the engine and allow to the engine to idle in PARK or NEUTRAL with the parking brake engaged.
  7. Slowly fill the coolant mixture until the level stabilizes at the base of the radiator surge tank.
  8. Install the coolant pressure cap.
  9. Raise the engine RPM to 2500 rpm for 30-40 seconds.
  10. Shut the engine OFF.
  11. Allow the engine to cool, remove coolant fill cap and repeat steps 4-10 until the coolant level has completely stabilized within the radiator surge tank.
  12. Inspect the concentration of the engine coolant using the J 26568 Coolant and Battery Fluid Tester
  13. Inspect and if necessary, fill the coolant reservoir bottle as necessary.
  14. Rinse away any excess coolant from the engine and the engine compartment
  15. Inspect the cooling system for leaks.
  16. Top off the radiator surge tank if necessary.

Repair Procedure

  1. Pressure test the cooling system. Refer to «Cooling System Leak Testing»(ref-621992-S12010026792014061000000) .
  2. Grind the fracture surface (1) with a proper tool.
  3. Drill a hole in the center of the fractured surface, using a 6 mm (0.24 in) drill.
  4. Install the new radiator mounting pin (2). Install the nut (3). NOTE: The bolt should not be longer than 35 mm (1.38 in). Install the radiator mounting pin (2) with the bolt (1).
  5. Tighten the bolt 5 N.m (45 lb in).

Scheme 36

Scheme 36: Radiator Lower Mount Replacement
Scheme 36: Radiator Lower Mount Replacement
CalloutComponent Name
Preliminary Procedures Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement . Lower Radiator Support Bracket . Refer to Radiator Support Bracket Replacement . Support the radiator.
1Lower Radiator Mount

Radiator Lower Mount Replacement

Scheme 37

Scheme 37: Radiator Upper Mount Replacement
Scheme 37: Radiator Upper Mount Replacement
CalloutComponent Name
Preliminary Procedures Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement . Remove the radiator. Refer to Radiator Replacement (LFX LUK) .
1Radiator Upper Mount

Radiator Upper Mount Replacement

Scheme 38

Scheme 38: Radiator Upper Bracket Replacement
Scheme 38: Radiator Upper Bracket Replacement
CalloutComponent Name
Preliminary Procedures Remove the front bumper fascia. Refer to Front Bumper Fascia Replacement Support the radiator.
1Radiator Upper Support Bracket Fastener (Qty: 1) CAUTION: Refer to Fastener Caution . Tighten 25 N.m (18 lb ft)
2Radiator Upper Support Bracket (Qty: 1)
CAUTION
Refer to Fastener Caution .

Radiator Upper Bracket Replacement

Scheme 39

Scheme 39: Engine Coolant Fan Motor Replacement
Scheme 39: Engine Coolant Fan Motor Replacement
CalloutComponent Name
Preliminary Procedures Remove the engine coolant fan shroud. Refer to Engine Coolant Fan Shroud Replacement .
1Engine Coolant Fan Motor Bolt (Qty: 6) CAUTION: Refer to Fastener Caution . Tighten 10 N.m (89 lb in)
2Engine Coolant Fan Motor (Qty: 2)
CAUTION
Refer to Fastener Caution .

Engine Coolant Fan Motor Replacement

Scheme 40

Scheme 40: Cooling Fan and Shroud Replacement
Scheme 40: Cooling Fan and Shroud Replacement
CalloutComponent Name
Preliminary Procedures Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement Reposition power steering reservoir. Remove the radiator outlet hose. Refer to Radiator Outlet Hose Replacement (LUK) , Radiator Outlet Hose Replacement (LFX) Disconnect the engine coolant fan motor electrical connectors. Unclip all wiring harness that are connected to the shroud.
1Engine Coolant Fan Shroud Bolts (Qty 2) CAUTION: Refer to Fastener Caution . Tighten 10 N.m (88 lb in)
2Engine Coolant Fan Shroud
CAUTION
Refer to Fastener Caution .

Cooling Fan and Shroud Replacement

More articles — Engine Cooling System