Blower wont work on lower speeds

Tiny
THRISA
  • MEMBER
  • 2005 PONTIAC GRAND AM
  • 125,000 MILES
My heater dont work when set to 1, 2, or 3. But when set to 4 and 5 it does. What causes this. I just replaced the blower motor. Before it started there was a clicking noise occasionally on passenger side front vent.
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Sunday, November 6th, 2011 AT 11:37 PM

5 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Most likely the blower motor resistor.
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Sunday, November 6th, 2011 AT 11:49 PM
Tiny
THRISA
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How do I replace that?
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Sunday, November 6th, 2011 AT 11:50 PM
Tiny
FIXITMR
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You need to take off the under dash paneling, then lay outside the car and put your head where the passengers feet go. As far back as possible you will see a connector that fits into the resistor. Unplug it, plug in the new resistor to test it, then unscrew the screws holding the resistor with the 7/32 socket then put the new resistor in.
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Monday, November 7th, 2011 AT 12:11 AM
Tiny
THRISA
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Ok. I will try this. Thank you.
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Monday, November 7th, 2011 AT 12:30 AM
Tiny
FIXITMR
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The resistor is next to blower motor in same housing.
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Monday, November 7th, 2011 AT 12:52 AM

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