2002 GMC Yukon Repair Question
Topics covered: Blend door, Door, Panel.
Mileage: 42,000 miles.
Mileage: 42,000 miles.
Asked on November 18, 2011
I have slt that just replaced the mode acutator on and air stills blows out the defrost vents
When I pluged in the new motor it rotated clockwise and stopped. It will rotate back no matter what the vent selestor is set to.
Answer
Replied on November 18, 2011
test the vacuum going to the a/c panel.you have a vacuum leak some thing is leaking.check all the vacuum hoses.
Replied on November 18, 2011
there are no vacuum lines on this model for a/c, it uses dc servo motors to operate the blend door and the fresh/recirculating vents.
Replied on January 27, 2012
Is the dc motor maybe hooked up backwards? That would make the motor turn in reverse.