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Blower motor not working

Tiny
JEFF COLEMAN
  • MEMBER
  • 2001 CHEVROLET CAVALIER
  • 150,000 MILES
I have changed the regulator at the blower motor and the one under the hood. Still does not work. What else is there? Thought maybe the switch.
Monday, October 2nd, 2017 AT 6:48 PM

26 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,323 POSTS
It sounds like the blower motor or relay is not working.

Here are some guides and diagrams (below) to help us get the problem fixed:

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please let us know what you find.

Cheers, Ken
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Tuesday, October 3rd, 2017 AT 12:53 PM
Tiny
KEVIN55NAPA
  • MEMBER
  • 2 POSTS
  • 2000 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 140,000 MILES
Engine Cooling problem
2000 Chevy Cavalier four cylinder front wheel drive automatic 140,000 miles.

The radiator fan never kicks on even when the A/C is on max. The car never shows it is overheating. Temperature is always around 195, but it does smell and feel very hot after driving for a while. I am not sure if it is the fan motor or not. The A/C also is not blowing cool air and is fully charged. Any suggestions on what I should check? I have replaced the temperature sensor which did nothing.
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Tuesday, October 3rd, 2017 AT 9:22 PM (Merged)
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Hi,
In the under-hood fuse box check cooling fan fuse. If good need test light check for voltage on light blue wire at fan with A/C on voltage?
Let me know.
Thanks for the donation.
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Tuesday, October 3rd, 2017 AT 9:22 PM (Merged)
Tiny
KEVIN55NAPA
  • MEMBER
  • 2 POSTS
Checked cooling fan fuse, it is good. Test only light blue wire coming off fan I could find and no glow from test light.
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Tuesday, October 3rd, 2017 AT 9:22 PM (Merged)
Tiny
JAKEY529
  • MEMBER
  • 1 POST
  • 1999 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 180,000 MILES
Air Conditioning problem
1999 Chevrolet Cavalier four cylinder front wheel drive automatic 180,000 miles.

I have to admit that I do not know the first thing about cars. But my question is my air conditioning just stopped working. You turn it on and nothing happens. It does not blow hot or cold air. Could it be the blower motor? My husband would like to fix himself, but we are not sure where to start. Please help!
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
OBXAUTOMEDIC
  • MECHANIC
  • 3,711 POSTS
Okay, so turning the fan speed knob does not blow on low med or high right? If so there is a blower motor resister in the duct work under the passenger dash.

Here is a picture of the part (however the color may be different):


https://www.2carpros.com/forum/automotive_pictures/188069_274132_1.jpg



This part is common for your problem.
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
SMOKINGALLOWED
  • MEMBER
  • 12 POSTS
First check the fuse panel between the door and dash. Also under the hood, there is a relay and a 30 amp fuse and another fuse for the blower in there as well in the fuse panel beside the battery.
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
JCMICK
  • MEMBER
  • 1 POST
  • 1998 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
Air conditioning problem
1998 Chevrolet Cavalier four cylinder two wheel drive automatic 180,000 miles.

My car makes a low rattling noise every time I turn on the air or the heat. The heater and air conditioning both will not work. The fan does not even blow air. What could be the problem?
Thanks,
JM
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
HI there,

I would be checking that the fan blower motor is okay, it sounds faulty.

Mark (mhpautos)
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
DANDERS11
  • MEMBER
  • 1 POST
  • 1999 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 137,000 MILES
Heater problem
1999 Chevrolet Cavalier four cylinder front wheel drive automatic 137,000 miles.

The blower fan quit working in first notch only would work in second and higher. Then all of the sudden quit working all together it did not shut off slowly it just quit working. Would it be a bad motor or switch or is there a relay module?
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Check fuses, but I would suspect the switch on the dash as the problem. You can remove blower motor connector and apply twelve volts to motor to see if motor is problem, but I would suspect switch.
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
ALEXN
  • MEMBER
  • 2 POSTS
I have that problem once in two years. Blower resistor. First time I spent about an hour to replace it. Then only five minutes after I modified farther screw socket. Good luck.
See attached picture:


https://www.2carpros.com/forum/automotive_pictures/296481_Blower_1.jpg

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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
CHAUVETE
  • MEMBER
  • 1 POST
  • CHEVROLET CAVALIER
2001 Chevrolet Cavalier four cylinder 20,000 miles.

Last week the AC fan quit working on levels 1 and 2 for any of the settings. Level 3 and 4 still work though. When on level 1 and 2, the faster I drive, the more quickly the AC will come out, and when I stop I can barely feel any air coming out of the vents.

What might be causing this problem?
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be the blower motor resistor pack-its purpose is to control the blower motor speed, the higher the no. On the control switch the stronger the flow of a air.
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
DENNISR
  • MEMBER
  • 1 POST
  • 2002 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 103,000 MILES
Heater problem
2002 Chevrolet Cavalier four cylinder front wheel drive automatic 103,000 miles.

The interior fan motor will not operate at any speed. I have checked fuses and circuit breakers. What is next to check?
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
If blower motor relay and fuses are good then next is to test the heater control panel to ensure the switches are working correctly.
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Tuesday, October 3rd, 2017 AT 9:23 PM (Merged)
Tiny
SHAUNTEL
  • MEMBER
  • 1 POST
  • 1992 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 180,000 MILES
Heater problem
1992 Chevrolet Cavalier four cylinder front wheel drive automatic 180,000 miles.

The heater did not produce a lot of heat coming from the fan. And now the fan has stopped working altogether. Is the fan run on a fuse? Or is it something else?

Signed,
Frustrated and cold!
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Wednesday, October 4th, 2017 AT 12:44 PM (Merged)
Tiny
MIKE H R
  • MECHANIC
  • 3,094 POSTS
You said it did not throw out a lot of heat? Was the fan running okay at that time before it stopped? At times heater fans can get something into them making it so they do not turn. There is a fuse for the heater.
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Wednesday, October 4th, 2017 AT 12:44 PM (Merged)
Tiny
G MATHEWS
  • MEMBER
  • 1 POST
  • 1997 CHEVROLET CAVALIER
1997 Chevrolet Cavalier four cylinder manual transmission.

My blower motor does not work. How do I remove the motor? Is this a serious or fairly simple instalation?
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Wednesday, October 4th, 2017 AT 12:44 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
The blower motor and fan are serviced as an assembly only. Listed below are the removal/installation procedures for your vehicle. If you feel you are not experienced enough to do the job yourself, I suggest having a shop do it to prevent any damage to vehicle or injuries to self.

Rrmoval:
Disconnect the negative battery cable.
Remove the passenger side sound insulator.
Detach the electrical connections from the blower motor.
Remove the blower motor retaining screws, then remove blower motor and fan assembly.

Remove the sound insulator from underneath the passenger side of the instrument panel


https://www.2carpros.com/forum/automotive_pictures/261618_0900c152800a7227_2.jpg



Remove the retaining bolts for the blower motor assembly


https://www.2carpros.com/forum/automotive_pictures/261618_0900c152800a7227_3.jpg



Installation:
Install blower motor and fan assembly, then secure using the retaining screws.
If equipped, connect the blower motor cooling tube.
Attach the electrical connections to the blower motor.
Install the right side sound insulator.
Connect the negative battery cable.

Hope this helped. Thanks for using 2carpros.com!
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Wednesday, October 4th, 2017 AT 12:44 PM (Merged)

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