Idel fluctuates ?
09-12-2005, 05:01 PM
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Car: 1987 GTA
Engine: 305
Transmission: T-5
Axle/Gears: 373
Idle fluctuates ?
1988 formula 350 TPI idle fluctuates when cold.The idel seems normal as soon as the engine warms up.
Could it be a Vac leak????
Could it be a Vac leak????
Last edited by DA BRONX; 09-12-2005 at 07:04 PM.
09-13-2005, 07:41 AM
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Car: 1988 IROC -Z28
Engine: 5.7L TPI
Transmission: 700r4
Axle/Gears: 2.77
Absolutely. Vacuum leaks are probably the most likely cause. I've got an 88 5.7 that does the same thing, once it warms for a few minutes the car will idle more normally. I have already replaced the CTS thinking that might have done it, but still no. I've chekced for leaks, nothing, cleaned the IAC, now on to the IAT sensor. Good luck, and if you find the problem before I do, lemme know!!
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