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Why do I not have cabin heat?

Tiny
GREENCHEVYMALIBU
  • MEMBER
  • 1992 GEO METRO
  • 56,000 MILES
I had a leaking head gasket and figured that I didn't have heat because of the head gasket. I just replaced the head gasket, flushed the cooling system, new thermostat, flushed heater core. I have heat for a few seconds then it turns luke warm and then cold. I turn it off and back on a few minautes later and it's warm for a few seconds then cold again. What else could cause my heat for a second then nothing?
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Thursday, November 17th, 2011 AT 4:21 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the air blend door and actuator could be malfunctioning-
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Thursday, November 17th, 2011 AT 4:27 AM
Tiny
GREENCHEVYMALIBU
  • MEMBER
  • 230 POSTS
Is the actuator in the blend door assembly.
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Thursday, November 17th, 2011 AT 4:29 AM
Tiny
GREENCHEVYMALIBU
  • MEMBER
  • 230 POSTS
I had a plugged heater core. Flushed with radiator flush and now its nice and hot.
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Sunday, December 18th, 2011 AT 9:44 PM

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