2002 GMC Yukon Repair Question
I have Yukon SLT that just replaced the mode acutator on and air stills blows out the defrost vents
test the vacuum going to the a/c panel.you have a vacuum leak some thing is leaking.check all the vacuum hoses.
2,858 answers provided
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.
1 question asked
Is the dc motor maybe hooked up backwards? That would make the motor turn in reverse.
5,494 answers provided