91 Sedan Heater problems

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Old Sep 14, 2014 | 02:46 PM
  #1  
mrboompow's Avatar
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From: Tennessee
Default 91 Sedan Heater problems

I have a 91 Sedan LX model. When i bought the car the heater worked but now it isnt working. The blower isnt coming on. Ive checked fuses that seem like they would be for the heater and still nothing. Any ideas?? winters coming up and i daily her.
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Old Sep 14, 2014 | 06:44 PM
  #2  
99teggsr's Avatar
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From: Taylor, Pa, USA
Default Re: 91 Sedan Heater problems

Crawl up under glovebox and give the bottom of heater blower motor a good whack while it is on. If the motor is on its way out due to worn brushes this will usually get it to spin a little bit to verify you have power to the blower motor. Or if you have a meter you can check for 12VDC at the 2 pin blower motor connector while the heater is on. If you have no power to the 2 pin connector it could be broken heater blower resistor, broken climate control or a break in a wire somewhere.
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Old Sep 15, 2014 | 12:15 AM
  #3  
~sp33~'s Avatar
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From: Brisvegas, QLD, Australia
Default Re: 91 Sedan Heater problems

The blower resisters often blow the lower fan speeds first (speed 1, speed 2) because they run thinner wire than 3-4. So if speed 4 still works, but the others don't - it's your resister.

Check your fuses as well as what 99teggsr suggested.
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Old Sep 15, 2014 | 03:38 AM
  #4  
mrboompow's Avatar
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Default Re: 91 Sedan Heater problems

is there any fuses that may do it that dont say anything close to heater stuff?/
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Old Sep 15, 2014 | 11:43 AM
  #5  
sodaZC's Avatar
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Default Re: 91 Sedan Heater problems

Originally Posted by mrboompow
is there any fuses that may do it that dont say anything close to heater stuff?/
No check the resistor like they said above. it takes like 5 minutes. dont be hard headed/lazy.
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