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Home >> Chevrolet >> 2005 >> Express 2500 V6-4.3L VIN X >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Engine >> Timing Components >> Timing Cover >> Service and Repair
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Timing Cover: Service and Repair

Engine Front Cover Replacement

Removal Procedure
1. Remove the engine oil pan.
2. Remove the crankshaft balancer.
3. Remove the water pump.
4. Remove the crankshaft position (CKP) sensor.





5. Remove the crankshaft position sensor seal (O-ring).
6. Discard the crankshaft position sensor seal (O-ring).
7. Remove the engine front cover bolts.





Important: After the composite engine front cover is removed do not reinstall the engine front cover. Always install a NEW engine front cover.

8. Remove the engine front cover.
9. Discard the engine front cover.
10. Clean all sealing surfaces.

Installation Procedure

Important: Once the composite engine front cover is removed DO NOT reinstall the engine front cover. Always install a NEW engine front cover.





1. Install the NEW engine front cover.

Notice: Refer to Fastener Notice in Service Precautions.

2. Install the engine front cover bolts.
^ Tighten the bolts to 12 Nm (106 inch lbs.).

Important: DO NOT reuse the original crankshaft position sensor seal (O-ring). When installing the crankshaft position sensor be sure the crankshaft Map position sensor is fully seated and held stationary in the engine front cover crankshaft position sensor bore.
A crankshaft position sensor that is not completely seated will cock in the engine front cover and may result in erratic engine operation.





3. Lubricate the NEW crankshaft position sensor seal (O-ring) with clean engine oil.
4. Install the NEW crankshaft position sensor seal (O-ring) onto the crankshaft position sensor.
5. Install the CKP sensor.
6. Install the engine oil pan.
7. Install the water pump.
8. install the crankshaft balancer.
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