Okay, time for the mechanics to speak up again My '87 Mustang GT is having idle problems. Basically, it won't idle at all. The engine revs up and down, and then it stalls out. I have to keep constant pressure on the gas pedal to prevent this. I've followed the Chiltons manual for resetting the idle speed, but to no avail. Any thoughts? One more thing...the blower speed switch won't work on anything but the highest setting. I thought it was the switch itself, but after replacement it's still doing the same thing. Any thoughts on this as well?