Heater barely works

Tiny
BIGG_626
  • MEMBER
  • 1991 MAZDA 626
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 200,000 MILES
My car's heater and air conditioning barely work. Hot and cold air comes out, but with a very weak flow
Friday, November 26th, 2010 AT 10:32 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,454 POSTS
Does the blower motor sound like it is working properly?
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Saturday, November 27th, 2010 AT 12:01 AM
Tiny
BIGG_626
  • MEMBER
  • 2 POSTS
I can't hear it at all. Either its stuck on the lowest setting or doesn't come on. I was hoping it could be something besides a broken blower.
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Saturday, November 27th, 2010 AT 12:15 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,454 POSTS
It could be a resister, relay. What I need you to do is check to see if there is power to the motor. If there is, the motor is bad. If there is no power, then we need to check the blower motor resister and the relay.

Check that and let me know what you find.

Joe
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Saturday, November 27th, 2010 AT 12:31 AM

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