1999 Cadillac Deville My heat doesnt work at all

Tiny
JAYES5BOYZ
  • MEMBER
  • 1999 CADILLAC DEVILLE
  • V8
  • 2WD
  • AUTOMATIC
  • 120,679 MILES
Blows cold air
Thursday, March 4th, 2010 AT 6:57 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Is the coolant level full? Is the engine running at a normal operating temp? If you said yes to both questions, try this. With the engine running, hot, and the heater on, check both heater core hoses. Both should be hot. Let me know what you find.

Joe
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Friday, March 5th, 2010 AT 11:09 PM

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