Heater will not blow hot air--only luke warm--.

Tiny
ANONYMOUS
  • 1990 MAZDA B2200
  • 84,000 MILES

Heater will not blow hot air--only luke warm--radiater is full--tempature knob is as high as it will go.--Had recent head gasket replaced but had same problem before that was done. Can tempature control be bypassed just for winter use?

Wednesday, December 5th, 2012 AT 11:38 AM

1 Reply

Tiny
KHLOW2008
  • EXPERT
  • 41,939 POSTS

Check the heater core for clogging. Both heater core hoses should be hot. Ensure the air mix vents are working correctly.

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Wednesday, December 5th, 2012 AT 1:50 PM

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