2005 Chevy Suburban air flow

zrobyna1 · Posted at Sat Sep 06, 2008 7:52 am

Air Conditioning problem
2005 Chevy Suburban 49000 miles
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When I turn the dial to 5 no air blows. Air conditioner works fine 1-4.

merlin2021 · Posted at Sat Sep 06, 2008 8:08 am

Check the blower motor resistor high control.

zrobyna1 · Posted at Sat Sep 06, 2008 9:46 am

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

merlin2021 · Posted at Sat Sep 06, 2008 11:52 am

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.

zrobyna1 · Posted at Sat Sep 06, 2008 3:24 pm

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?

merlin2021 · Posted at Sun Sep 07, 2008 4:07 am

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.