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Thread: Misfire
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11-23-2009, 12:36 PM #1Senior Member
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Black- 2000 Trans Am WS6
Misfire
What is the likely hood of piston/valve damage from a misfire?
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11-23-2009, 01:25 PM #2Member
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Quick Silver- 2002 Z06
From that description I would say unlikely.
Exactly what happened?
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11-23-2009, 02:03 PM #3Senior Member
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Black- 2000 Trans Am WS6
well first off its my wifes car not mine ( a VW). And its under a aftermarket warranty. So I cant get my paws on it too much, Well I will be pulling the plug/wires etc. I am getting P0304 so its cylinder 4 misfire. The freeze data shows that at the time of misfire the fuel trim was at -100.4 which is a lot. But I am not getting any fuel system codes at all. So I am leaning towards the plug or wires, hopefully not a gasket. Anyway I havent dealt with many misfires in my time, just never had them. But when the car runs its jerky, which is about right a #4 being out, but there is a distinct tap/click noise which makes me wonder if there is valve or lifter damage.
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11-23-2009, 02:14 PM #4LSwut
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Arctic White & Black- '98 WS6 M6 - SWAPTIME!
What kind of car? Don't rule out injectors or even throttle position sensor (losing signal causing a misfire sensation)
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11-23-2009, 02:14 PM #5Royal pain in the....
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2001 Z-28 A4 NBM- 2002 35th anni SS M6#1696
po304 i would check the connections to the fuel injector and swap the spark plug,wire and coil with #6 and see what happens,
is this a 6 speed car, i have seen some bent/broken pushrods from overrev, usually mis-shift.
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11-23-2009, 02:34 PM #6Senior Member
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Black- 2000 Trans Am WS6
wasnt over rev was at 2100rpm's its a 4cycinder turbo
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11-23-2009, 03:08 PM #7ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ
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White- 2008 Hummer H3
None.
Originally Posted by TransAm11973
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11-23-2009, 03:21 PM #8LSwut
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Arctic White & Black- '98 WS6 M6 - SWAPTIME!
4 cylind turbo? Audi or VW? Ignition coil recall. Check it out.
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11-23-2009, 05:28 PM #9Senior Member
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Black- 2000 Trans Am WS6
yeah its a 2000 VW Passat .....hmm thanks for the info, I will have to check that out Originally Posted by tep98ws6
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