engine running fast


Old 05-14-07, 03:40 PM
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Join Date: May 2007
Posts: 1
Smile engine running fast

I have an 84 Cutlass, that I've been restoring. It's been running fine, but now at idle it revs up and I can't get it to idle down. It's even tough to hold it back with the brake. any ideas on how to correct the idle
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Old 05-17-07, 06:10 AM
carguyinva's Avatar
Join Date: Nov 2003
Location: Shenandoah Valley
Posts: 1,147
fast idle with carb

vacuum leaks, choke not heating up and coming off of fast idle cam or cam stuck, faulty idle speed control if it's a 3.8 v-6 OR faulty idle load control if it's a 307 v-8. if it's a 305, it uses neither. also base idle adjustment can be way off. jeez...been a long time since i thought about carbs!

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