Heres my issue: 1.) Car starts no problem when cold. Fires up within a few seconds and goes to a high idle of about 1500-1800 rpm. 2.) 2-3 minutes after warming up the engine starts hunting up and down from 1000-2000 or so rpm. The hunting gets worse with time until the engine dies. 3.) If I intercede and work the throttle myself and hold let the engine run from 2000-3000 rpm until the water gauge shows some temp then everything is fine. The car will drive off with no stumbling, etc. 4.) However, if I let the car idle on it's own and it starts hunting then ultimately the car dies (very low rpm and then it quits.) If I try to start it now it simply will not start. I have to wait an hour or two and then it will start no problem. So the car starts, it runs fine on the road when warm, but has a problem running in between initial start up and fully warmed up. I imagine it has something to do with the idle or cold start circuit but any ideas before I tear into it would be nice.
Sounds like it is running to rich. Your base idle settings at the fuel distributors need to be adjusted, but did this just start? Could be some other problems are causing it to run rich, blocked or melted cats, if you have them. Hunting is a sign of to rich a mixture, but the adjustment from rich to lean and to get to factory specs is so small, you need a CO tester to do it with accuracy.............even to get it close
Hey Brian, I had a similar problem like that last year....not sure how long it has been happening to you, but for me I, certain it was some stale gas that sat in the tank and got alot of mositure. Once i burned through that tank, it ran fine. Any loss of power when you hit the throttle at higher revs? I had 1 blip....been fine ever since.
