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LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

signs of bad IAC

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Old Oct 18, 2003 | 06:00 PM
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97WRAITH's Avatar
97WRAITH
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From: ontario,canada
signs of bad IAC
Cleaned my iac and after a couple of days the car revs up about 200-500 rpms then back down ever once in a while when I start it and let it warm up.It also idles rough. Should I replace the IAC?

Thanks!
Rob.
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Old Oct 18, 2003 | 07:29 PM
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tryintogofast
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Yeah it sounds like the IAC is shot but maybe u want to check your fuel pressure before you replace it. My fuel pressure low enough to at which I was idling at that range.
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Old Oct 18, 2003 | 09:40 PM
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97WRAITH
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fuel pump and filter are one year old with low miles on them.
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Old Oct 18, 2003 | 10:01 PM
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tryintogofast
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Yeah probably IAC Valve
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