poor idle at times
I have the 2000 4.0 OHV. It has just about 101K on it. Over the summer, I noticed that when I would crank it, it would sometimes idle real low (tach at 0) and the volt meter would falter. On the way to summer camp (Wisconsin from Florida) it did this for quite a while one morning until I got on the road a ways, so I swapped the battery as it was shown to be dying. Durring camp, it started doing it again, so I had the alternator checked thinking the problem electrical. Alt seemed fine. Took it into a shop and was told it needed a tune up. New plugs gapped right, new wires and the like dropped in. Ran great! For a while. Still continued to do it from time to time. This afternoon (rainy all day) I get it and it does it all the way to the movie store. (Get out of car, check out under hood, slam hood in frustration.) Come back out of cideo store and all is smiles again.
I've read everything from IAC, to vaccum lines to MAP sensor. My buddy checked it with his OBDii and it popped no codes out. When it runs great, everything if fine. (Little rough idle here and there) but I'm at wits end with this thing at points. How do I get this thing to run smooth? Could the coil be bad (don't recall if it was changed)?
Any help would be greatly appreciated.
I live in my own little world, but it's ok.....
they know me here.
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