My 88 V6 truck suddenly started idling high even while warm.....seems like warm up cycle never kicks off. Crappy gas mileage too. The truck will sometimes go to normal idle after being shut off hot and restarted a short time later. I havent look too far into the problem, but after hunting season Im going to tear it apart and fix it. Any suggestions preferably from someone with the same problem?

Michael J. Carsner proud driver of "Aint Pretty"

37 boggers, 571 gears, Detroit+Lock-Rights, 20R stage 1 LC Engineering head on 22R motor.
MUD!!! Its whats for dinner!!