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2005 Chevy Suburban air flow

Tiny
ZROBYNA1
  • MEMBER
  • 2005 CHEVROLET SUBURBAN
Air Conditioning problem
2005 Chevy Suburban 49000 miles

When I turn the dial to 5 no air blows. Air conditioner works fine 1-4.
Saturday, September 6th, 2008 AT 10:52 AM

5 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check the blower motor resistor high control.


https://www.2carpros.com/forum/automotive_pictures/62217_BMR_1.jpg

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Saturday, September 6th, 2008 AT 11:08 AM
Tiny
ZROBYNA1
  • MEMBER
  • 3 POSTS
Is this motor located under the dash on the passenger side?
Would this be something that just needs to switched on or something that needs to be replaced?
Thanks
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Saturday, September 6th, 2008 AT 12:46 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Es the resistor is on the a/c heater plenum near the blower motor. It is probably the bad part, If there is power at the connector to the resistor, but not at the blower in high.
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Saturday, September 6th, 2008 AT 2:52 PM
Tiny
ZROBYNA1
  • MEMBER
  • 3 POSTS
How do I check if it is receiving power? I don't want to have to take my car in. Is the replacement part what is shown in the diagram?
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Saturday, September 6th, 2008 AT 6:24 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
It will look like this picture, and you test with a voltmeter, each setting will give different voltage at the resistor. If that works, the switch is OK replace the resistor.


https://www.2carpros.com/forum/automotive_pictures/62217_Resistor_4.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_Resistoa_1.jpg

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Sunday, September 7th, 2008 AT 7:07 AM

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