Hey guys, I just replaced and repaired my engine and swapped out my transmission at the same time for a newer one. I have a problem however. Before I pulled the motor it idled kind of wacky, like up and down on the rpm's. I thought it was a tune-up issue because I had'nt changed the plugs and wires in a while but after I got the whole engine cleaned up with new gaskets and seals and then tuned it up and put it back in, it's doing the same thing.............rpm's kind of up then down. Erratic!
It's not like the IAC valve, it's more like it lopes and idles erratically. I feel no blow by at the exhaust either. The PVC valve is new, the air filter is good, and as far as I know the head gasket does'nt appear to be leaking from what I have seen. The fuel pump and fuel filter is also new. The only other things I can think of is the fuel pressure regulator or worn camshaft lobes, which I hope it is'nt. The engine does have over 200,000 miles on it but I've had it for the last 150,000 or so of those miles and have regularly maintained it.
I know these engines can go for a long time if taken care of and not abused but I'm totally stumped here guys. Now that I've taken care of all the leaks this engine had can someone point me on where to look? Thanks.
EDIT: By the way, it only does this at idle. After idle it's fine.
Allen
It's not like the IAC valve, it's more like it lopes and idles erratically. I feel no blow by at the exhaust either. The PVC valve is new, the air filter is good, and as far as I know the head gasket does'nt appear to be leaking from what I have seen. The fuel pump and fuel filter is also new. The only other things I can think of is the fuel pressure regulator or worn camshaft lobes, which I hope it is'nt. The engine does have over 200,000 miles on it but I've had it for the last 150,000 or so of those miles and have regularly maintained it.
I know these engines can go for a long time if taken care of and not abused but I'm totally stumped here guys. Now that I've taken care of all the leaks this engine had can someone point me on where to look? Thanks.
EDIT: By the way, it only does this at idle. After idle it's fine.
Allen
