Hello all, new to the forum. I am having some major rpm problems, ok I'll try to keep this brief. I got my comanche a little more than 1 year ago. This rpm problem comes and goes with the weather it seams. Dead of winter its fine but spring summer and fall lots of problems. I never have any problems getting started but 1 in 3 times the rpm shoots up to nearly 4 grand. Some times it will fall to normal in a few seconds but usually have to turn it off and restart it sometimes 2 or 3 times before it corrects itself. Every now and again it will start fine but after about a mile of driving it climbs up to about 1500 rpms and dosent go down untill I shut if off agian. Had a mechanic test the TPS and he said it was fine.....could he have been wrong? Maybe the IAC.....any advice will be appreciated.
