93 cav heater blower

[hercules411]

My son's 1993 cavalier RS has an intermittent problem with the heater blower. sometimes it works.. sometimes it doesn't.

[public]

Pull off the two wires on the motor and clean both halves of each connector. They get a lot of dirt on them. This is a fairly common issue.

[Greenman8]

Also could be the fan switch is bad. Just replaced the one in my 90 Cavy. I just put in a 3 way toggle switch.

[Tookie]

Clean the power contacts. Make sure fuse is intact. Check speed control switch and slider. If all is well, try giving the blower motor housing a few taps with a small hammer. (careful to not dent.) The blower motor might run. If so, then you're looking at replacing the unit. If not remove the assembly and power it from a car battery. Be careful; as its quite torquee. Real easy job to replace.

[rockdude]

replace blower motor internal ground concern of blower motor .. or possibly the blower resistor.it has been know that they will corrode and turn green with corrosion..