1990 Other Cadillac Models

1990 CADILLAC
201,123 MILES • V8 • FWD • AUTOMATIC
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BIGL42
  • MEMBER
  • 1 POST
heater is not hot enough. takes the heater long time to warm up. air only flows through defrost vents
Dec 12, 2009 at 12:18 PM
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FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
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.
Dec 13, 2009 at 10:59 AM
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