1998 Buick Regal heater blower switch

Tiny
PGAN
  • MEMBER
  • 1998 BUICK REGAL
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 120,000 MILES
Heater blower switch only works on high
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Sunday, December 14th, 2008 AT 12:34 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 107,922 POSTS
Hi:
The switch is most likely fine. Try replacing the blower motor resister. It is the most common cause of this problem.

Let me know if this helps.

Joe
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Sunday, December 28th, 2008 AT 12:37 PM
Tiny
GERARDI2000
  • MEMBER
  • 1 POST
I replaced the blower motor resistor and the heater still doesn't work consistently but when it does decide to come on it's on high only. If I turn it off it doesn't come back on.

Thanks
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-1
Tuesday, January 13th, 2009 AT 1:55 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 107,922 POSTS
Hi:
What I need you to check is the ground to the motor. Let me know what you find. Please keep in mind, when they only work on high, the resister is the problem 99% of the time. I'm sorry it didn't work. Let me know about the ground.

Joe
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Tuesday, January 13th, 2009 AT 4:24 PM

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