Power window wiring diagram

Here is a diagram for power windows for your truck. Make absolutely sure you put the circuit breaker in so you don't have an unprotected circuit. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Top one is for 1999, bottom for 1998

Hope this helps

If you can operate the motor in both up and down positions and the motor actualy drives then you need to have look at your window regulator. Quite common for the drive cable to fray and break. Have a look at that first. If you had no power to the motor still after replacing the switch I would have said check the wiring in the door boot.

If it's a high-pitched screeching sound, check for sand or small rocks in the rubber seal at the top of the door / bottom of the window opening. You might see very fine scratches in the glass too going up and down. You can pull the rubber back by hand and run your finger over it to remove those rocks.

If it's coming from inside the door, the regulator might have a wire cable that runs on plastic pulleys. The engineers didn't understand, or didn't care, that those cables fray and come apart and the pulleys crack. You might be able to look down inside to see that when the window is rolled all the way down.

Look at the rubber channels the glass slides in. Normally they get real sluggish and take a long time to roll up when bug juice and other debris gets in there. To address that, spray both channels liberally with Silicone Spray Lube. The Chrysler dealer's parts department has that, and you can find it at most auto parts stores. I'm sure the GM dealers have it too, but it will be at a much higher cost. It sprays on like water, then evaporates and leaves a lot of "slippery" behind. Works real well for sluggish seat belts and for sliding rubber hoses onto metal pipes.