1999 Chevy Suburban HVAC Mode Selector Switch

1999 CHEVROLET SUBURBAN

190,000 MILES • V8 • 4WD • AUTOMATIC

MSHOWFE

MEMBER
1 POST

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

BUZZSAW

✓ASE Certified Mechanic
1,198 POSTS

[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

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