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04 Lesabre 3800

Tiny
JERRYRE
  • MEMBER
  • 2004 BUICK LESABRE
  • V8
  • FWD
  • AUTOMATIC
  • 30,000 MILES
Cooling fans only work with ac, do not go on with temp. Engine gets up to 222 F in traffic. Replaced engine temp sensor, no change.
Wednesday, December 8th, 2010 AT 2:18 PM

5 Replies

Tiny
JERRYRE
  • MEMBER
  • 4 POSTS
If I remove the 2 wire connector to the sensor, the fans go on but service engine light comes on
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+1
Wednesday, December 8th, 2010 AT 2:25 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
Have you checked the relay?
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Wednesday, December 8th, 2010 AT 2:39 PM
Tiny
JERRYRE
  • MEMBER
  • 4 POSTS
No, where is it? Just replace it?
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Wednesday, December 8th, 2010 AT 2:47 PM
Tiny
JERRYRE
  • MEMBER
  • 4 POSTS
No Answew
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Wednesday, December 8th, 2010 AT 3:40 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,269 POSTS
It is under the hood near the HVAC system
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Wednesday, December 8th, 2010 AT 6:40 PM

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