heater blower motor

I've got a 1980 F-150, with A/C, and the heater's fan motor only runs on high, but not any of the other 3 speeds, anyone have some advice on troubleshooting this? Is the problem likely the blower motor itself, or the fan speed selector switch, or something else. Thanks alot!!

It is your blower motor. No big deal and really easy to change. Last time I bought one it cost something like 30 bucks.

It is your blower motor. No big deal and really easy to change. Last time I bought one it cost something like 30 bucks.
Thanks for the info Pete54ford. Now lets see, if I could just find someone who has a good motor that would like to trade me for this really nice boat anchor that's in my truck........ (351W)

"How to tell who your friends are" ... They're the ones that come over to your house, and don't want something, except just to see you! :lol2:

at least your heater blows out heat on only one speed. my car dont even blow out heat and noone can figur out why. and its like below zero here

brrrrrr same problem here

scott need to make sure that blower switch wires are not burnt if wires are ok replace your blower resistor

If the motor works on high, it's obvious that it is not bad (either blower motors work, or they don't). It could be either the resistor block, or the switch. No telling which without checking for voltage at the resistor block.

can anybody tell me where the heater fan motor's resistor block is ? Is it in the dash by the fan switch, or is it in the blower motor housing, or is it somewhere else ? Thanks to all that replied to my original post on this. :killbarne

THE blower resister located next to the blower motor with 4 wires on it