Expert: Van - 12/19/2005

Question
first, thanks van for the great advice.
of course when i left work, the heater completely stopped, blower moter gone? i checked the fuse (inside the cab) all is okay.
also, i did forget to mention that the coolant does drip onto the ground.  some days worse than others.
the grease in the cv boot still seems to be okay and does not look like chocolate pudding (great analogy)  

Answer
Hi again Lisa,
OK...looks like we need to concentrate on this blower problem, although since you are leaking coolant to the ground, be sure to keep it topped off, or you won't get any heat either.

For the blower....I mentioned the relays and resistors, probably on top of the heater housing behind the glove compartment. Easiest access is to completely remove the glove compartment, and then you are looking right at them.

If you get this far, and really need to know, I will dig out my manual and tell you the colors of the wires on the relays and resistor pack, but before doing all that, lets go under the hood to the blower motor connection itself.
There is only one wire that powers the blower motor, and one additional wire in that motor area, which is a black ground wire.
You can test the blower power supply wire with a test light connected to a GOOD ground. Make sure the light works before testing the blower power.
Now, touch the probe to the blower wire, and turn the heater, or air conditioner on, as well as the ignition switch to run, and select the different speeds.
The test light should be dim on low, and progressively brighter as you select the other speeds, till it is the same intensity on hi as if you touch the battery pos.
If the test light does act like that, then you can assume your controls, relays, and power supply are ok.
Then I would use a jumper cable from battery pos, and jump directly to the blower motor power terminal. It should run on hi speed....that is , assuming the ground wire is connected, and good.
You can use the other jumper cable to make sure the motor housing is grounded.

If the blower motor works, we will go through the controls.
If it doesn't, remove it and see if it is locked up, or just worn out.

Keep me posted,

Van