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1996 GMC Sonoma only works on high blower speed

Tiny
ED.SESSIONS
  • MEMBER
  • 1996 GMC SONOMA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 109,000 MILES
Changed blower motor with new motor fan only works on high
Friday, October 15th, 2010 AT 3:04 PM

3 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
Have you checked the blower motor resistor yet?
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Friday, October 15th, 2010 AT 3:15 PM
Tiny
ED.SESSIONS
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The truck belongs to a friend that I am trying to help. This is what I thought it might be but wasn't positive. How do you actually check it do you ohm it out and how?
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Friday, October 15th, 2010 AT 4:36 PM
Tiny
SATURNTECH9
  • MECHANIC
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https://www.2carpros.com/forum/automotive_pictures/416332_1996_gmc_sonoma_blower_motor_1.jpg



https://www.2carpros.com/forum/automotive_pictures/416332_1996_gmc_sonoma_blower_motor_part2_1.jpg



https://www.2carpros.com/forum/automotive_pictures/416332_1996_gmc_sonoma_blower_motor_part3_1.jpg


I posted the location's of the resistor and the relay there in the engine compartment i also posted the trouble tree for the blower only work's on high.I also emailed you the trouble tree.
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Friday, October 15th, 2010 AT 6:49 PM

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