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03-07-2020, 09:47 PM | #1 | ||
Starter Motor
Join Date: Jun 2020
Posts: 1
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My 2002 AU3 has developed a fault where it starts to misfire badly, but only when up to running temperature.
I've cleaned the throttle body and the sensor thing in there... next step is probably to replace the coil pack, etc. Just wondering why it would only do this when warm? Really bad misfire, too - sounds like an old Russian tractor, and shudders like a crapping dog's tail. Anything else I should check before the coil pack? I've done that once before and I remember wishing many unpleasant things on the 'designer' who put the damn thing where it is! Cheers |
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04-07-2020, 09:41 AM | #2 | ||
Chairman & Administrator
Join Date: Dec 2004
Location: 1975
Posts: 107,522
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You are probably on the right track.
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Observatio Facta Rotae
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04-07-2020, 11:33 AM | #3 | |||
#neuteredlyfe
Join Date: Apr 2012
Posts: 10,705
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Quote:
Get yourself a very long extension bar with a 3/8 drive. It will make the job ten times easier. The last coil pack I did took me about 15 minutes. |
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04-07-2020, 01:04 PM | #4 | ||
FG XR6 Ute & Sedan
Join Date: Oct 2006
Location: Bibra Lake WA
Posts: 23,608
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Also check the knock sensor (mounted on the inlet side of the engine block near number 5 cylinder) has not come loose and has more than 10,000 ohms resistance across it's two terminals. Also check that both the crankshaft position and camshaft position sensors near the harmonic balancer are firmly attached, clean and oil free with and sound wiring harnesses.
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regards Blue |
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05-07-2020, 01:38 PM | #5 | ||
AU3 ute EL futura
Join Date: Oct 2008
Location: Brisbane
Posts: 485
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Yeah I had a similar problem, was the coil. Trust me the coil is easy, try doing the inlet manifold gasket!
I replaced the knock sensor due to an error code, but it was fine. Do check it's tight though. |
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