I have a 2002 Yukon XL. The heat works in the rear cab, but blows cold in the front. What's wrong with it?

Asked by Dec 29, 2015 at 01:22 AM about the 2002 GMC Yukon XL 1500 SLT 4WD

Question type: Maintenance & Repair

My front heater has just stopped working.  I've checked the antifreeze, filled it,
and still cold air.  The rear cab vents blow heat just fine.  What could my next
step be to have checked?

5 Answers

74,605

probably have a bad blend door actuator up front under the dash.

1 of 1 people found this helpful.

Thank you Rowefast! Is this a fairly easy replacement?

74,605

Sorry so late, I had to blow snow as we had a storm. So, other than standing on your head, ya it is fairly easy to do.

1 of 1 people found this helpful.

Lol! I called Auto Tire here and they told me that if it's the passenger side, it won't be that hard for me to fix. If it's on the drivers side, it's going to be bad! Grrrrrr! Thank you so much, and stay warm!!

74,605

Your welcome...

1 of 1 people found this helpful.

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