OLDS CUTLASS

  • Tiny
  • ffighter542
  • 1991 Oldsmobile Calais
  • 4 CYL
  • FWD
  • automatic
  • 150,000 miles

Have a 91 olds cutlass calais and cant get any heat out of it changed thermostat and pulled heater core and water from kitchen faucet flows thru so I am stumped dont see any shut offs in either hose

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Saturday, December 11th, 2010 AT 8:58 PM

3 Replies

  • Tiny
  • rasmataz
  • Member

Check the air blend door if its in the heat position-start here

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Saturday, December 11th, 2010 AT 9:03 PM
  • Tiny
  • Docfixit
  • Expert
  • 18,993 posts

Problem is with blend door not closing isolating core for heat. Maybe faulty vacuum servo

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Saturday, December 11th, 2010 AT 9:05 PM
  • Tiny
  • ffighter542
  • Member

The door is fine opens and closes as I move the slide bar on heater control

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Saturday, December 11th, 2010 AT 9:17 PM

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