WHY DO I HAVE JUST HOT AIR BLOWING IN THE REAR AIR?

2003 Chevrolet Tahoe

Tiny

firefighter38242

May, 1, 2012 AT 1:26 AM

The truck only blows hot air when ac is blowing cold air up front.

FOUND 3513 RELATED QUESTIONS

5 Answers

Tiny

ASEMaster6371

May, 1, 2012 AT 1:27 AM

Either low in freon or you have a blend door issue with the rear air.

Roy

Tiny

firefighter38242

May, 1, 2012 AT 1:37 AM

What is the blend door?

Tiny

ASEMaster6371

May, 1, 2012 AT 1:38 AM

A motor that moves a door that allows either heat or ac to come out the vents.

Roy

Tiny

firefighter38242

May, 1, 2012 AT 1:41 AM

How do u check it?

Tiny

ASEMaster6371

May, 1, 2012 AT 1:42 AM

You cannot. A shop with a scan tool can manipulate it to confirm it working. Let a shop at least check it for you so you do not waste any money on parts that dont fix it.

Roy

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