Question about 2002 Chevrolet Tahoe
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
There is no cure per GM dealer. Mine has been doing it for 200000 miles
Posted on Feb 20, 2011
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
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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Posted on Jan 02, 2017
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