Question about 2004 Jeep Grand Cherokee

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2004 Jeep grand cherokee, Blower motor Fuse Blowing

Problem:
My 2004 Jeep Grand Cherokee out of nowhere stopped blowing heat and AC. I found the blower motor fuse under the hood (40 Amp) had blown. I changed the fuse, started the car, and the blower still did not work. Checked the fuse and it was blown again.

Fix:
I removed the blower motor which is located under the glove box on the passenger's side. It is almost to the far right just under the right vent. There are three screws holding it in (Do not remove the two screws on the very bottom of the housing.) You will find it is a little difficult to remove the third screw due to large wiring that is difficult to move but with a little finess, you can get it out. When I removed the blower motor (Fan attached) I mannually spun the fan and found it binding/not moving freely.
At this point, I removed the two screws from the housing and was able to move the motor out of the housing about 1/2 inch. I then blew all open holes/areas on the motor out with an air compressor but would assume you could use canned air. While blowing out the motor, I continuously spun the fan manually to ensure all debris built up in the motor were removed. You wouldn't believe how much debris it picks up.
after approximately 15 minutes of blowing out, the fan attached to the motor moved freely. I reinstalled the fan and replaced the fuse, and waa laa... Fan was blowing and fuse wasn't.

Hopefully this will help someone that is having the same issue.
If you take your car to the auto shop to get it fixed, most likely they'll just tell you the motor needs to be replaced which I have seen between $89 and $150 plus their labor. So you'd be looking at approx $300-$500.

My cost was $4 and a total of around 2 hours of work.

Sounds a lot better than the "we'll fix it for you" deal.

God Bless

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  • jcioka Jan 11, 2009

    Above

  • Richard Scordino May 11, 2010

    Good work...Nice to see someone actually post the final solution instead of disappearing. Shops will change motor rather than cleaning usually because it takes just as long to clean it as it does to replace it. With a new motor, there is less chance that the job will come back later with a similar failure. (power at the brushes and armature without the motor turning can burn the armature which can cause it to fail early. Shop must guarantee their work and would be liable if motor failed two weeks after they worked on it!

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My 2004 Jeep Grand Cherokee limiteds heater only works sometimes. I pulled it out to find one of the wires was not attached and the terminal looks burnt. Can I bypass

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