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Crazy knock count??

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Old 07-22-2005, 04:07 PM   #1
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Gripenfelter's Avatar
Join Date: Oct 2002
Location: Winnipeg, Manitoba, Canada
Posts: 249
Default Crazy knock count??

I see knock even when the car is off lol.

This is a '93 LT1 with a 383.

The car sometimes rattles when I shut it off. Sound comes from the front of the intake or under the TB. Its not the lifters or rockers. Car surges at idle and sometimes stalls in a puff of fuel from the exhaust. It especially rattles if the idle drops below 700rpm. Its supposed to be 1000rpm.

Any ideas?
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count, knock, pcm

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