Originally Posted by Scrap Iron
Is there a way to check the switch because it has two one in the front for the driver and on in the back for passengers. The front is the master control for the rear. It has setting 3,2,1,0,R. the R position is to allow the rear passengers to control the fan speed and temp setting. Same thing happens using the front switch or the rear switch. I took the rear blower out to see if i could find some way online to test it but no luck. I can't even find a new one.
You post that sometimes it runs till you turn it off, what position are both main, and back seat switch in when it runs as it should? You also should try to jumper out the front switch, if the rear switch controls it as it should, it's the front, and vise versa with the rear switch. Unfortunatly if it is a switch, more than likely will be the front as it is used more than the rear.