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Old Oct 2, 2006 | 07:25 PM
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Default cold start knock

well i did some searching and i see a fair amount of people have cold start knock. mine sorta goes away when at runnig temp you can hear it real faint if next to a wall or something like that. now heres my ? if i can hear this at runnig temp whats the odds that my knock sensor is picking this up and retarding my timing. when i bought the car it did not knock when cold had it for a few days then it started. thought i might have screwed something up since i hit the rev limiter bad on a miss shift but then searched and listen to audio on here and it sounds like everyones. I dunno maybe im paranoid but the car just don't seem as powerful as it did when i got it.
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Old Oct 3, 2006 | 09:21 AM
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any tell me im paranoid i don't care just tell me somthing is it hold in me back on power or not. cause if it is this winter its gettin ripped down
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Old Oct 3, 2006 | 09:36 AM
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its called piston slap.my '02' silverado 2500 has it,the camaro doesnt.
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Old Oct 6, 2006 | 11:24 PM
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k i understand that part but do you think my knock sensor picks that up
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Old Oct 6, 2006 | 11:59 PM
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usually not but you can hook it up to efi live and youll be able to see if your getting any knock readings at all
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Old Oct 7, 2006 | 02:00 AM
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i get it in my LT1 now that its getting colder in the mornings.
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Old Oct 7, 2006 | 02:14 AM
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shouldnt be that big of a deal...unless it stays loud or gets worse....you can change oil if you want but it doesnt really matter
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