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1981 Buick Regal blower motor

Tiny
CARVER
  • MEMBER
  • 1981 BUICK REGAL
Electrical problem
1981 Buick Regal 6 cyl Two Wheel Drive Automatic

i just finished replacing ac comp. Receiver drier and orface tube, problem I have is fan motor works on the lower speeds but doesn't work on highest speed. So far I have replaced speed selector switch in dash, repaired vac. Switch that oper. Max air door, replaced fan motor relay and blower motor resistor, any thoughts on why no high speed? THANKS FOR ANY HELP, CARVER.
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Sunday, August 2nd, 2009 AT 12:32 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS


https://www.2carpros.com/forum/automotive_pictures/170934_regal_blower_motor_1.jpg



Hello, you need to track the wiring circuit, the high speed isn't wired through the resistor. See if there is any voltage at the motor connector, high speed, if nothing then backtrack. Turn the key on.
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Sunday, August 2nd, 2009 AT 11:05 AM

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