New (to me) Gen1 doesn't idle...

[Senor Carey]

Well, three days into ownership, the Montero left my wife stranded in the middle of rush hour traffic in one of the busiest intersections in our area.

The truck has a random high idle, usually. Now, it won't idle at all. If I give it gas and feather the throttle it will run, but is undriveable this way. I'm suspecting the idle control valve (ICV). I removed, cleaned the ICV and throttle plate, no change.

Before I buy a new one and throw money at the problem, is there a resistance test for these or are they supposed to hum/buzz in a key on situation?

Thanks for your help...

 

[off-roader]

I don't recall the steps to check the ICV/ISC (Idle speed Servo) but you can find it in the factory service manual. You can find a number of them on mitsubishilinks.com.

 

[grandpa]

If the timing belt is worn or stretches and jumps a tooth, and the cam timing gets off, it will effect the idle. It did on mine.

 

[Senor Carey]

Thanks for the replies. A new ICV fixed the problem.