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Old 05-20-2023, 02:04 PM   #12
Micmac
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Join Date: Nov 2007
Location: Calais, Maine
Posts: 496
Re: Rod Knock when cold - Ever had this happen?

Quote:
Originally Posted by Accelo View Post
I suspect it's piston slap not a rod knock. The piston warms up and it goes away.
Typically the colder it is and the longer it has sat the worse it is.

My 2000 Silverado has been doing that since it was new and it has 175K on it now.
Cheers
Same here with a '03 Sierra I actually just sold a couple of months ago with 200K on it.
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