Idle hangs when coming to a stop
- Thread starter 50 Proof
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patman0911
Founding Member
How high are they hanging? A couple hundred RPMs above idle is normal and they should drop after a few seconds at rest. If, once it's warmed up, it's hanging at, like, 1500 RPM then something is wrong.
It'll hang around 2k rpm, give or take a couple hundred rpm. My 94 gt did something similar where the idle was constantly stuck at 2500-3000 rpm and turned out to be a bad idle air control valve. That's why I suspect bad iac on my Bullitt but I don't know what else could cause this.
It doesn't do this all the time, its random and infrequent
It doesn't do this all the time, its random and infrequent
twogts4us
15 Year Member
You hit it - it's the IAC. You can clean it and buy some time, but sooner or later you'll want to replace it.
I agree and disagree with this comment. I clean mine and it did buy me some time. Like 4yrs.
I have 172K miles and it's still going strong. However I'm gonna be replacing it soon.
Steve491
Member
Check the vacuum lines, especially the big ones like the PCV coming out of the intake. They might look good, but they get loose and leak air depending on the temperature.
twogts4us
15 Year Member
I agree and disagree with this comment. I clean mine and it did buy me some time. Like 4yrs.
Impressive!
Rejekt
Member
I agree and disagree with this comment. I clean mine and it did buy me some time. Like 4yrs.
Yep, I cleaned mine 2 years ago and have had no trouble since lol
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