• Tiny
  • bigl42
  • 1990 Cadillac

Heater problem
1990 Other Cadillac Models V8 Front Wheel Drive Automatic 201123 miles

heater is not hot enough. Takes the heater long time to warm up. Air only flows through defrost vents

Saturday, December 12th, 2009 AT 12:18 PM

1 Answer

  • Tiny
  • factoryjack
  • Expert
  • 4,263 posts

Check that the thermostat is not stuck open, or not regulating temp properly. The coolant hoses under the hood should get hot to the touch, to the point you have to remove your hand. If you can keep your hand on them, it is not warm enough.

Was this
Sunday, December 13th, 2009 AT 10:59 AM

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