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AC and heat not working

Tiny
ZOG1974
  • MEMBER
  • 2001 JEEP GRAND CHEROKEE
  • 4.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 135,000 MILES
You turn it on in the car hi, low, medium and nothing happens. No AC and no heat. The digital reading comes on in regards to the dashboard, but no air comes out.
Wednesday, May 24th, 2017 AT 3:25 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuse in under hood fuse box. Check resistor on bottom of heater by blower.
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Wednesday, May 24th, 2017 AT 12:39 PM
Tiny
ZOG1974
  • MEMBER
  • 45 POSTS
If I wiggle the wires going into the resister it will turn on but then eventually will shut off on its own and sometimes turn on without doing anything at all
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Thursday, July 6th, 2017 AT 12:42 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I tmay be a bad resistor or harness probably resistor is burnt up
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Thursday, July 6th, 2017 AT 3:30 PM

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