My fan won't kick on. I can't feel any warm air coming out of the defrost/vents, nothing. My fuse isn't blown, is it my blower motor? When I replaced my heatercore, we broke my plastic factory connector to the blower motor, and we just spliced the wires together, haven't had any issue with it, the connection now seem to be good. What else could it be, I'm gona need some heat

 

check the ground. i have found a lot of ground problems. you could also jump power to it from the battery to rule out the motor.

 

Does it not work on any levels of speed? If it only works on high, it may be the resistor pack. Happened to mine when I first bought the truck.

 

I went back outside to check it out, and the F'r works all I did was do some jiggling on a few wires, at first nothing worked, NO speeds, or any different settings, I don't know, it's working again, till next time. Sooooo, ground problems, or could it been a vaccum problem since nothing was workin??

Thank you for the info gentlemen

 

i had the same kind of issue on my radio speakers...worked then a few days of not. spent hours tracin wires and testin and found no problems....gave up...next day got in started it and it worked. no problem since.