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Engine Mechanical (Service Information) (2ZR-FE): Overview Toyota Corolla XI

Mechanical 4 illustrations ~1805 words

Scheme 47

Scheme 47: PROCEDURE
Scheme 47: PROCEDURE
  1. INSPECT ENGINE COOLANT Refer to «ON-VEHICLE INSPECTION [08/2013 - ]»(/toyota/corolla/xi-2012-2016/remont/cooling-fan/#engine-cooling-system-inspection-2zr-fe)
  2. INSPECT ENGINE OIL Refer to «ON-VEHICLE INSPECTION [08/2013 - ]»(/toyota/corolla/xi-2012-2016/remont/lubrication-system/#engine-lubrication-system-inspection-2zr-fe)
  3. INSPECT BATTERY Refer to «ON-VEHICLE INSPECTION [08/2013 - ]»(ref-635590-S09758760852014070300000)
  4. INSPECT AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY Remove the air cleaner cap with air cleaner hose. Refer to «PROCEDURE - Step 3»(ref-635621-S14840200152014070300000) Remove the air cleaner filter element sub-assembly. Visually check that the air cleaner filter element sub-assembly is not excessively damaged or oily. If necessary, replace the air cleaner filter element sub-assembly. HINT: If there is any foreign matter or clogs in the air cleaner filter element sub-assembly, clean it with compressed air. If any foreign matter or clogs remain even after cleaning the air cleaner filter element sub-assembly with compressed air, replace it. Install the air cleaner filter element sub-assembly. Install the air cleaner cap with air cleaner hose. Refer to «PROCEDURE - Step 3»(ref-635621-S01846381892014070300000)
  5. INSPECT SPARK PLUG Refer to «ON-VEHICLE INSPECTION [08/2013 - ]»(/toyota/corolla/xi-2012-2016/remont/ignition-system/#ignition-system-inspection-2zr-fe)
  6. INSPECT V-RIBBED BELT See step 1
  7. INSPECT VALVE AND ADJUSTER NOISE Rev up the engine several times. Check that the engine does not emit unusual noises. If unusual noises occur, warm up the engine and idle it for 30 minutes or more, then perform the preceding inspections. HINT: If any defects or problems are found during the inspections, perform valve lash adjuster assembly inspection. See step 2
  8. INSPECT IGNITION TIMING Warm up and stop the engine. When using the Techstream: Connect the Techstream to the DLC3. Start the engine and run it at idle. Turn the Techstream on. Enter the following menus: Powertrain / Engine and ECT / Data List / IGN Advance. Powertrain > Engine and ECT > Data List Tester Display IGN Advance Standard Ignition Timing 0 to 14 degrees BTDC NOTE: Check the ignition timing with the cooling fan off. Turn off all electrical systems and the A/C. When checking the ignition timing, the transaxle should be in neutral or park. Enter the following menus: Powertrain / Engine and ECT / Active Test / Connect the TC and TE1 / ON. Powertrain > Engine and ECT > Active Test Active Test Display Connect the TC and TE1 Data List Display IGN Advance Monitor IGN Advance of the Data List. Standard Ignition Timing 8 to 12 degrees BTDC NOTE: When checking the ignition timing, the transaxle should be in neutral or park. Enter the following menus: Powertrain / Engine and ECT / Active Test / Connect the TC and TE1 / OFF. Check that the ignition timing advances immediately when the engine speed is increased. Turn the ignition switch off. Disconnect the Techstream from the DLC3. When not using the Techstream: Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3. *a DLC3 SST: 09843-18040 NOTE: Confirm the terminals before connecting them. Connecting the wrong terminals may result in damage to electrical components. Check the ignition timing with the cooling fan off. Turn off all electrical systems and the A/C. When checking the ignition timing, the transaxle should be in neutral or park. Remove the No. 2 cylinder head cover. Connect the clip of the timing light to the wire harness shown in the illustration. NOTE: Use a timing light that detects the primary signal. Inspect the ignition timing at idle. Standard Ignition Timing 8 to 12 degrees BTDC NOTE: When checking the ignition timing, the transaxle should be in neutral or park. HINT: After running the engine at 1000 to 1300 RPM for 5 seconds, check that it returns to idle speed. Disconnect SST from terminals 13 (TC) and 4 (CG) of the DLC3. Inspect the ignition timing at idle. Standard Ignition Timing 0 to 14 degrees BTDC Check that the ignition timing advances immediately when the engine speed is increased. Disconnect the clip of the timing light. Install the No. 2 cylinder head cover.
  9. INSPECT ENGINE IDLE SPEED Warm up and stop the engine. When using the Techstream: Connect the Techstream to the DLC3. Start the engine and run it at idle. Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed. Powertrain > Engine and ECT > Data List Tester Display Engine Speed Inspect the engine idle speed. Standard Idle Speed for Manual Transaxle 600 to 700 RPM for Automatic Transaxle, CVT 700 to 800 RPM NOTE: Turn all electrical systems and the A/C off. Inspect the engine idle speed with the cooling fan off. When checking the engine idle speed, the transaxle should be in neutral or park. Turn the ignition switch off. Disconnect the Techstream from the DLC3. When not using the Techstream: Using SST, connect a tachometer probe to terminal 9 (TAC) of the DLC3. *a DLC3 NOTE: Be sure to connect the tachometer probe to the correct terminal. Connecting the wrong terminals can cause damage. SST: 09843-18040 Turn the ignition switch to ON. Inspect the engine idle speed. Standard Idle Speed for Manual Transaxle 600 to 700 RPM for Automatic Transaxle, CVT 700 to 800 RPM NOTE: Turn all electrical systems and the A/C off. Inspect the engine idle speed with the cooling fans off. When checking the engine idle speed, the transaxle should be in neutral or park. Turn the ignition switch off. Disconnect the tachometer probe from terminal 9 (TAC) of the DLC3.
  10. INSPECT COMPRESSION NOTE: Keep the intake manifold and spark plug holes free of foreign matter when measuring the compression pressure. Check for DTCs. Refer to «DTC CHECK / CLEAR [08/2013 - ]»(ref-635447-S23850175802014070300000) Warm up and stop the engine. Remove the 4 spark plugs. Refer to «REMOVAL [08/2013 - ]»(ref-635621-S34724195282014070300000) Disconnect the 4 fuel injector connectors. NOTE: Disable fuel injection in order to prevent catalyst damage due to unburned gasoline. Inspect the cylinder compression pressure. Insert a compression gauge into the spark plug hole. Fully open the throttle. While cranking the engine, measure the compression pressure. Standard Compression Pressure 1373 kPa (14.0 kgf/cm 2, 199 psi) Minimum Compression Pressure 1079 kPa (11.0 kgf/cm 2, 157 psi) Pressure Difference between Each Cylinder 98 kPa (1.0 kgf/cm 2, 14.2 psi) or less NOTE: Use a fully-charged battery so that the engine speed can be increased to 250 RPM or more. Inspect the other cylinders in the same way. Measure the compression pressure as quickly as possible. If the cylinder compression pressure is low, pour a small amount of engine oil into the cylinder through the spark plug hole, then inspect it again. HINT: If adding oil increases the compression pressure, the piston rings and/or cylinder bore may be worn or damaged. If the compression pressure stays low, a valve may be stuck or seated improperly, or there may be leaks in the gasket. Connect the 4 fuel injector connectors. Install the 4 spark plugs Refer to «INSTALLATION [08/2013 - ]»(ref-635621-S28525146422014070300000) Clear the DTCs. Refer to «DTC CHECK / CLEAR [08/2013 - ]»(ref-635447-S23850175802014070300000) NOTE: After the inspection, clear the DTCs, check for DTCs again and make sure the normal system code is output.
  11. INSPECT CO/HC HINT: This check determines whether or not the idle CO/HC complies with regulations. Start the engine. Keep the engine at 2500 RPM for approximately 180 seconds. Insert a CO/HC meter testing probe at least 40 cm (1.3 ft.) into the tailpipe during idle Immediately check the CO/HC concentration during idle and when the engine is running at 2500 RPM. HINT: When doing a 2 mode (with the engine idling/running at 2500 RPM) test, the measurement procedures are determined by applicable local regulations. If the CO/HC concentration does not comply with the regulations, perform troubleshoot in the order given below. Check for DTCs. Refer to «DTC CHECK / CLEAR [08/2013 - ]»(ref-635447-S23850175802014070300000) See the following table for possible causes, then inspect the applicable parts and repair them if necessary. CO HC Problem Possible Cause Normal High Rough idle Faulty ignition: Incorrect timing Fouled, shorted or improperly gapped plugs Incorrect valve clearance Leaks in intake or exhaust valves Leaks in cylinders Low High Rough idle (Fluctuating HC reading) Vacuum leaks: PCV hoses Intake manifold Throttle body Brake booster line Lean mixture causing misfire High High Rough idle (Black smoke from exhaust) Restricted air cleaner filter element sub-assembly Plugged PCV valve Faulty EFI systems: Pressure regulator Engine coolant temperature sensor Mass air flow meter ECM Injector assemblies Throttle body assembly

Scheme 48

Scheme 48: ILLUSTRATION
Scheme 48: ILLUSTRATION
*1ENGINE UNDER COVER RH*2NO. 2 CYLINDER HEAD COVER
*3V-RIBBED BELT

Scheme 49

Scheme 49: PROCEDURE
Scheme 49: PROCEDURE
  1. INSPECT V-RIBBED BELT Check the V-ribbed belt for wear, cracks or other signs of damage. If any of the following defects is found, replace the V-ribbed belt: The V-ribbed belt is cracked. The V-ribbed belt is worn out to the extent that the cords are exposed. The V-ribbed belt has chunks missing from the ribs. Check that the V-ribbed belt fits properly in the ribbed grooves. HINT: Check with your hand to confirm that the V-ribbed belt has not slipped out of the groove on the bottom of the pulley. If it has slipped out, replace the V-ribbed belt. Install a new V-ribbed belt correctly. *a Correct *b Incorrect Inspect the V-ribbed belt deflection and tension. *A w/ Compressor Assembly with Pulley *B w/o Compressor Assembly with Pulley *a Deflection *b Tension *c Deflection and Tension - - Deflection Item Specified Condition New belt 7.0 to 8.2 mm (0.276 to 0.323 in.) Used belt 7.6 to 10.0 mm (0.299 to 0.394 in.) Tension Item Specified Condition New belt 700 to 800 N (71 to 82 kgf, 157.4 to 179.8 lbf) Used belt 550 to 750 N (56 to 76 kgf, 123.6 to 168.6 lbf) HINT: When inspecting the V-ribbed belt deflection, apply 98 N (10 kgf, 22 lbf) tensile force to it. Check the V-ribbed belt deflection at the specified point. When installing a new V-ribbed belt, adjust its tension to the specified value. When inspecting a V-ribbed belt which has been used for over 5 minutes, apply the used V-ribbed belt specifications. When reinstalling a V-ribbed belt which has been used for over 5 minutes, adjust its deflection and tension to the intermediate values of each used V-ribbed belt specification. V-ribbed belt tension and deflection should be checked after 2 revolutions of engine cranking. When using a V-ribbed belt tension gauge, confirm its accuracy by using a master gauge first.

Scheme 50

Scheme 50: PROCEDURE
Scheme 50: PROCEDURE
  1. REMOVE FRONT WHEEL RH
  2. REMOVE ENGINE UNDER COVER RH See step 7
  3. REMOVE NO. 2 CYLINDER HEAD COVER See step 13
  4. REMOVE V-RIBBED BELT Loosen the bolts (A) and (B). Loosen the bolt (C), then remove the V-ribbed belt. NOTE: Do not loosen the bolt (D).