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1993 Jeep Cherokee Heater Blower

Tiny
MJMETTLER
  • MEMBER
  • 1993 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 146,000 MILES
The heater blower has stopped working. Sometimes it will work after the jeep has been running for a little while, but then the next time I start it won't work again.
Wednesday, February 10th, 2010 AT 7:55 PM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Sounds liek abad motor. Use a test light to see if there is power/ground at the blower motor, if so and no air, themotor is bad. If no power check at the fan speed resistor located near the blower motor in the HVAC housing. See if it has power there and get back to me
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Wednesday, February 10th, 2010 AT 8:25 PM
Tiny
MJMETTLER
  • MEMBER
  • 1 POST
Some additional info - the blower was only working on high at the time it stopped working properly, so I just recently replaced the resistor. So now on the occassions that the blower does work all the different blower setings work fine. Also, one time the blower started working when I slammed the glove box shut. Could something be loose?
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Wednesday, February 10th, 2010 AT 9:21 PM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Check the connections at the blower motor plug.A motor going bad will also do the same thing, so if connections are good the motor may be bad
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Wednesday, February 10th, 2010 AT 11:02 PM

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