Originally Posted by Dance GvN Dance
the RPMs i beleive just means that the throttle cable may be a lil too tight or just go to a local shop and get the people there to see if they can change the idle. And actually the high rpms are probabley meant to be that way to keep the engine running until it gets warmed up thats why it does that. But thats any tipical older engine. Dont worry about the Rpms being high when you first start it up. Heres an example, ever start a motorcycle or 4wheeler and you notice its reving really high? and then a few minutes later it will be at a pretty mild idle? Just listen or watch when you start the jeep as you hear the car idleing lower and lower. As for the squealing... uhhhmmm maybe the clutch needs to be changed or the transmission fluid may be low. Just by a clutch rebuild kit off of ebay, if that doesnt help, well atleast it couldnt hurt to change it but i suggest you look into it some more.
The clutch won't make squealing noises. And unless the truck needs it I'd save my money to spend on what is causing the problems.
Originally Posted by rrich
The squeal - you suspected the serp belt - how 'bout the idler pulley(s)?
They seem to last about 80,000 miles.
Easy to change, not expensive.
I agree with rrich. And there is a really simple way of confirming if it is indeed the idler pulley, or any pulley for that matter. Just try and spin them. If its squealing as much as you say, you'll feel which pulley is giving the resistance causing the belt to slip. Or look for burnt belt chunks, if belt isn't everywhere already. Typically the dirtiest pulley is the one thats bad as its getting rubbed the most.
As for idle, idling at 2000rpm is NOT normal, but thats a little more challanging. Your alt may not be putting out enough juice, and the motor is having issues because of that, but that is really unlikely. I'd be more inclined to look into the throttle position sensor or fast idle air valve (fiav). It could be quite a few things in the throttle body, even a vacuum leak.
If its throttle cable related, it'd be a kinked throttle cable, something that woudl be easy to identify and correct. But thats even less likely than the belt being the cause of your idle issue.