High Idler c-3
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Intermediate
Joined: Apr 2005
Posts: 41
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High Idler c-3
Hi, I have an 80 l-82 auto stock with origional carb.When I first start it up i have to let it idle a while before putting into gear or it will stall. After warm up & choke is disengauged she still idels @ 1500 rpm & idle screw is backed out all the way. I hate to retard timing just to get idle down. Anyone have any ideas. I have not played with the carb air adjusters as yet.
Safety Car
Joined: Aug 2000
Posts: 3,711
Likes: 43
From: San Antonio TX
There is also a screw on the fast idle cam. Make sure that screw is not resting on the cam with the choke off. You'll also want to check your throttle cable adjustment. It could be holding off the throttle. Remove the cable from the carb and see if the throttle completely closes.
If those appear fine, you'll need to start looking for a vacuum leak, which is probably where your problem is. The reason I write that is that a vacuum leak will cause the engine to faulter when it's cold since it will be running too lean to sustain a cold idle. That and the high hot idle. But, again, check the first items.
If those appear fine, you'll need to start looking for a vacuum leak, which is probably where your problem is. The reason I write that is that a vacuum leak will cause the engine to faulter when it's cold since it will be running too lean to sustain a cold idle. That and the high hot idle. But, again, check the first items.
Racer
Joined: Aug 2005
Posts: 255
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From: Mason MI 82-93-04CE
Originally Posted by Randy2red
...I hate to retard timing just to get idle down. Anyone have any ideas. I have not played with the carb air adjusters as yet.
Melting Slicks
Joined: Dec 2004
Posts: 2,161
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From: pr, frederick md.
if thats a computer controlled carb, there are also two electrical connections. and the one closest to the passenger side will cause a high idle if it is loose or if the little snap thingy cracks and lets it back out a little
