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Engine tapping at idle

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Old Aug 12, 2004 | 05:15 PM
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Need2gofaster's Avatar
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Default Engine tapping at idle

When at an idle, my ss will make a tapping sound almost like a pushrod noise. if you give it any rpms it goes away. I know that these LS1's have a oil pump problem, could this be the case? Also, it dosnt make this nosie all of the time. I'm stumped! The car only has 22,000 miles on it. Any help?
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Old Aug 12, 2004 | 09:14 PM
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the ls1 has noisy injectors...could be lifters too. theres a post somewhere about all the normal valvetrain noises u should hear.
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Old Aug 12, 2004 | 10:00 PM
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Originally Posted by Need2gofaster
When at an idle, my ss will make a tapping sound almost like a pushrod noise. if you give it any rpms it goes away. I know that these LS1's have a oil pump problem, could this be the case? Also, it dosnt make this nosie all of the time. I'm stumped! The car only has 22,000 miles on it. Any help?
Oil pump "problem"? Hmmm.... What is this?
The tapping you hear @ idle...might this be the PISTON SLAP problem the LS1s have from the factory (many posts on this topic ; search 'em out!)?
Also, in your search, look for my solution to the piston slap / needle bearing (on roller tappets) problem(s)...on replies to these posts. CIAO!
N.C. also...'98 Vette/M6

Last edited by gasalene; Aug 12, 2004 at 10:04 PM. Reason: ???
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