Question about 2002 Chevrolet Silverado 1500

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Ticking when cold

Engine makes cliking noise when cold, sounds like stuck lifter, but runs fine, and goes away after it starts to warm up.

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It could also be the infamous "Piston Slap" common in 1999-2002's.
GM "standardized" pistons or something like that and they did not fit the cylinders tight enough. The pistons "slap" the cylinder walls and make a tapping sound for the first few minutes until the pistons expand to fit. GM would not fix it and says it does not hurt the longevity of the motor ( yeah ri--ght! ) Do a google search for piston slap.
Oil level would help if it is a lifter ticking but will do nothing if it is the pistons slapping the walls. My 02 silverado has been doing this since almost new and the above description is straight from GM and a few visits to the dealership while under warranty.

Posted on Jul 05, 2010

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You arent getting enough oil to your lifters,,,,check you oil and see where its at level wise

Posted on Dec 25, 2008

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