Question about 2002 Chevrolet Tahoe

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MY 2002 chevy tahoe has a loud ticking noise when first started up in am, goes away after a minute or so, after it is warmed up and will not happen again until it has been sitting for a long time (overnight). does it in the cold or warm weather. oil pressure on gauge is fine, oil changed every 3,000 miles with mobil 1. car has 113,000 miles on it, any ideas?

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Check for an exhaust leak at the exhaust manifolds and flanges.

Posted on Nov 13, 2010

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I would try using "Lukas Oil Additive". You can pick it up at any auto parts store. It helps keep oil on valves while engine sits. It is very good product and has helped on cold knocks. It replaces about a half a quart of oil.

Posted on Mar 07, 2015

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There is no cure per GM dealer. Mine has been doing it for 200000 miles

Posted on Feb 20, 2011

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I heard this is a common problem. It's called a cold Knock. A mehanic told me not to worry about that it was common on that engine and won't hurt it. My Tahoe has been doing it for about 2 years and has 145000 miles on it. I just let it idle until the knock stops.

Posted on Jan 21, 2011

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Try using 91 fuel or check your knocking sensor wich is located on the engine block

Posted on Nov 22, 2010

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