i have a couple questions.
1. my heater in my truck is pretty much all or nothing and my power window on the pass side is slow and my doors make a clicking sound as i hold down the lock button. anyone know what might cause that? gem module maybe?

2. also, my truck is stuck in 4wd drive because of a bad shift motor. i had the shift in the dash checked out and it seemed to be fine. is it pretty easy replacing the shift motor with out taking it to a shop?

 

Question 1, the heater..if it works only on high...prolly needs the blower motor resistor replaced. Don't know what tell you on the window motor.

Question 2, I personally have never replaced that motor but it looks like it would be fairly easy to do.