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Radiator Fan Help Please!

Tiny
2001JGCL
  • MEMBER
  • 2001 JEEP GRAND CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 135,000 MILES
My 2001 Jeep Grand Cherokee keeps overheating because the radiator fan turns off instead of turning to a higher speed once the car hits 210*. We already changed the thermostat, relay, one sensor, and the fan motor - however the problem still persists. Is there anything I seem to be overlooking - or how can I test if we received a faulty part?
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Sunday, August 7th, 2011 AT 4:25 AM

4 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Attached is a fan circuit.

Use a test lamp to ground the relay cntrol terminal # 2 of the relay and if fan speed does not increase, the relay is bad.
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Sunday, July 28th, 2019 AT 12:08 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,004 POSTS
If I'm not too late!

Couldn't sleep, had to get on here, to do something!

Saw this post and remember this other

https://www.2carpros.com/questions/2001-jeep-grand-cherokee-failed-radiator-fan

Maybe this will make it a little EZer, if this was correct

The Medic

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Sunday, July 28th, 2019 AT 12:08 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Thanks, it is never too late.
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Sunday, July 28th, 2019 AT 12:08 PM
Tiny
2001JGCL
  • MEMBER
  • 2 POSTS
Thanks So Much - We will try this today!
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Sunday, July 28th, 2019 AT 12:08 PM

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