1999 Chevy Suburban HVAC Mode Selector Switch

1999 CHEVROLET SUBURBAN
190,000 MILES • V8 • 4WD • AUTOMATIC
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MSHOWFE
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The mode selector does not work. In other words when selecting defrost, or other modes it doesn't change to the correct position. It just continues to blow from the same place.
Blower seems to be working fine, and in fact i replaced the entire dash control panel thinking this was the probelm, but it is not.
Is it a relay issue or perhaps something else?

Thank you
Apr 28, 2008 at 9:46 AM
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BUZZSAW
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[quote:1e5ea41acc="mshowfe"]Air Conditioning problem
1999 Chevy Suburban V8 Four Wheel Drive Automatic 190000 miles
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The mode selector does not work. In other words when selecting defrost, or other modes it doesn't change to the correct position. It just continues to blow from the same place.
Blower seems to be working fine, and in fact i replaced the entire dash control panel thinking this was the probelm, but it is not.
Is it a relay issue or perhaps something else?

Thank you[/quote:1e5ea41acc]

you need to replace the mode actuator, its on the left side of the heater box (drivers side) or get down to it and see if its moving
Apr 28, 2008 at 9:59 AM