I've lost the 4 lower blower speeds. The switch has been changed but didn't rectify problem. I understand the next step is checking the blower motor resistor. The illustration in the repair manual isn't very clear and the verbage doesn't help. Can someone describe clearly exactly where the connector is and how to access the 3 bolts to remove the resistor?

 

It is under the dash on the passenger side. You need to remove the cowl under the dash and it should be close to the firewall. You should see a small wiring harness coming out of it and into the blower motor. There should be 2 very small bolts (about 5 mm) holding it in. Take it out and it will look like a printed circuit board and take it to a GM dealer to make sure you get the correct one. You could try the auto parts places if you wish.

I just replaced one in a 99 cutlass (should be the same as the Chev)

Hope this helps.

Dave

 

Thanks Dave. It's just as you've described and I have my blower speeds back now. I saw the wiring you're talking about but it's so tight up there that I didn't want to start pulling things apart without being sure.

The manual, no need to trash them here, shows a completely different resistor as well. It's not the approved shop manual so, I guess I got what I paid for.