04 Lesabre 3800

2004 BUICK LESABRE
30,000 MILES • V8 • FWD • AUTOMATIC
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JERRYRE
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  • 4 POSTS
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.
Dec 8, 2010 at 6:18 AM
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JERRYRE
  • MEMBER
  • 4 POSTS
If I remove the 2 wire connector to the sensor, the fans go on but service engine light comes on
Dec 8, 2010 at 6:25 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Have you checked the relay?
Dec 8, 2010 at 6:39 AM
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JERRYRE
  • MEMBER
  • 4 POSTS
No, where is it? just replace it?
Dec 8, 2010 at 6:47 AM
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JERRYRE
  • MEMBER
  • 4 POSTS
No Answew
Dec 8, 2010 at 7:40 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
It is under the hood near the HVAC system
Dec 8, 2010 at 10:40 AM
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