No heat

BUICK SKYLARK
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CAHMROHN
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  • 3 POSTS
I have a 1972 buick skylark and the climate control is bypassed with a toggle switch.The heat was working fine last winter now that it has gotten cold again it wont work but the blower is working fine.
Nov 24, 2007 at 9:01 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Could be an air mix or blend door problem cable or vacuum -also a thermostat stuck open -heater hose or heater core clogged up.

How's the coolant level in the radiator and resevoir bottle.
Nov 24, 2007 at 10:05 AM
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CAHMROHN
  • MEMBER
  • 3 POSTS
The coolant levels are fine, all the wires and fuses still seem to be in tact but its still blowing cold air.
Nov 25, 2007 at 11:39 PM
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CAHMROHN
  • MEMBER
  • 3 POSTS
So whats the first thing I need to do?
Nov 27, 2007 at 8:38 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Flush out the heater core and follow it with the thermostat
Nov 27, 2007 at 10:51 AM
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