Hot air, as if the heater is on?

Tiny
STELLA1959
  • 1995 GMC SIERRA

IT'S LIKE THE HEATER IS ON, HOT AIR. THE HEATER IS OFF, WHY?

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Tuesday, June 26th, 2012 AT 9:30 PM

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Tiny
ASEMASTER6371
  • EXPERT
  • 25,533 POSTS

Outside vent is stuck open. May be jammed, check it to verify

Roy

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Tuesday, June 26th, 2012 AT 11:36 PM

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