ENGINE KNOCK ON COLD START

2002 Chevrolet Silverado

Tiny

trafgod

March, 19, 2011 AT 5:03 PM

2002 Chevrolet Silverado 1500 4WD with a 5.3L engine, 93,000 miles. When starting with the engine cold (sitting overnight or longer), there is a knocking noise (reminds me of lifter tap) that lasts for 2-3 minutes before fading away. Oil pressure shows fine. This started about a year ago. Any suggestions?

1 Answer

Tiny

rasmataz

March, 19, 2011 AT 5:05 PM

Sounds like a valve lifter leakdown problem

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