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04-10-2019, 06:51 PM | #1 | |
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2004 Chevy Impala
All of my coil packs are firing except 1&4 what could cause that? I bought new coil packs still same issue, car still runs just vibrates
Also what is this called in photo |
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04-11-2019, 09:47 AM | #2 | |
A990 racer
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Re: 2004 Chevy Impala
Bad connections, or a bad ign control module, most common causes.
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Tech II (04-11-2019)
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04-11-2019, 08:37 PM | #3 | |
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Re: 2004 Chevy Impala
Agree with Max, ICM.......
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