Thread: knocking noise
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Old 04-13-2008, 09:24 PM
j cAT j cAT is offline
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Re: knocking noise

Quote:
Originally Posted by victimizati0n
am i missing something?

please read my first post

"usually does it within the first 5 minutes of startup/driving when everything is mostly cool"

it doesnt matter if it is sitting still, driving, or going over bumps

it only does it one time though, once you hear it (and you dont hear it every time) you wolnt hear it again for usually the rest of the day

edit* sorry my post isnt ment to be mean, iv been in a bad mood recently, dont take anything personally...
it is possible that the cat exhaust is expanding and this would rapidly heat up during the first five minutes as unburned gases are greatest....

has it been a long time since plugs/wires checked/replaced....? a large plug gap would cause extra unburned gases to heat up the cat extra hot..
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