The blower motor does not work but my compressor clicks on?
2004 CHEVROLET MONTE CARLO
148,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
BENARD MILLER
MEMBER
3 POSTS
FOLLOW
I replaced the blower motor, resistor, ignition and control module. All fuses and relay are good. No power to my resistor.
Sep 5, 2022 at 8:10 PM
Advertisement
STRAILER
CERTIFIED EXPERT
53,865 POSTS
We need to check for power using a test light for the fuse (HVAC Blower 30 amp), in the under-hood fuse panel, this guide can help and the fuse location in the diagrams below, also I have included HVAC wiring diagrams so you can see how the system works.
Check out the diagrams (below). Please let us know what happens.
Images (Click to enlarge)
Sep 6, 2022 at 10:05 AM
BENARD MILLER
MEMBER
3 POSTS
I already used the test light every fuse and relay lit up fine using the test light.
Sep 6, 2022 at 11:57 AM
Advertisement
STRAILER
CERTIFIED EXPERT
53,865 POSTS
Okay, can you test for power at the red wire at the resistor? If you look at the wiring diagrams you can see that it is a straight shot from the fuse to the blower motor resistor.
Sep 7, 2022 at 12:10 PM
BENARD MILLER
MEMBER
3 POSTS
I already tested the red wire entering the resistor and there's no power. The HVAC blower 30 amp is good I checked it with a test light and that's what's puzzling me.
Sep 8, 2022 at 8:07 AM
STRAILER
CERTIFIED EXPERT
53,865 POSTS
You can see from the wiring diagrams it is a straight shot from the fuse to the power of the resistor, I would run a new power wire to the resistor. Let me know.