05-28-2009, 11:08 PM
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| Junior Member
Join Date: Mar 2007 Location: Indy
Posts: 47
Car: 1991 Formula Firebird Engine: 305 TPI Transmission: Auto | Vacuum Leak? High Idle weird sound
Okay, I am still trying to get the cobwebs out of this car that sat for the better part of 5 years. All was fine, but once in a while I noticed a sound kind of like a turbo "whoosh" sound when I would hit the brakes.
Today I noticed the sound every time I hit the brakes, and as suddenly the car has began to idle high, around 2200 RPM's. If I turn the AC on it drops down a bit to around 1500 RPM's, still high, but it changes nonetheless.
It is a 5.0 TPI 91. The primary fan isn't coming on as it should, only with the AC. I just had the thermostat changed while getting the injectors done. I am only stating this in case it is relevant. FWIW, the brakes feel and seem fine. | | | |
 
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