2002 Chevy Trailblazer LTZ is blowing HOT air from driver's side vents

35

Asked by Nov 20, 2007 at 10:44 AM about the 2002 Chevrolet TrailBlazer LTZ

Question type: Maintenance & Repair

HELP! What could be causing the air conditioning unit (this vehicle has dual climate controls) to suddenly be blowing HOT (too hot to leave vents open) air from driver's side vents, but passenger side vents still blow cold? I've tried several times, adjusting the climate control all the way up to 90 degrees and back down to 60. It's been going on now for over a week. My warranty is long gone (76k miles now). I loathe the idea of a visit to the dealer. ($$$)
Any one have this problem before or has anyone heard of this problem? Thanks for the input.

5 Answers

45,285

It sounds to me like the mix/blend doors for the drivers side are broken or blocked closed. This would lead hot air coming in from the engine into the driver's side vents, while the passenger side can still blow cold. It is also possible that the climate control head for the dual controls is fried, and the car doesn't recognize input from the driver's side controls. Hate to suggest a trip to the dealer, but you might be able to find a local mechanic who would work on this for less. Climate control problems are almost always expensive.

8 of 8 people found this helpful.
65

might be a pressure switch which isnt ot bad to fix. that just happend with mine.

5 of 5 people found this helpful.
75

try to keep your windows open so u dont get too hot ofcourse and id defiantly go to a mechnic for this problem if u dont it could mean too much moisture would be coming out and it will mess up your seats and wiring in the car and that means radio, heated seats,etc.

1 of 1 people found this helpful.
360

the ltz use electrical motors to control the mix blend doors with automatic air control. the motors can strip the plastic gears and the doors will not move which happened to mine it was still under warranty so it was changed at the dealer they had to remove the dash to get to it because it was on the bottom there is more than one motor so you will have to get it checked to find out which one it is. good luck

1 of 1 people found this helpful.

This vehicle has a terrible AC system. Dealer never seems to be able to fix it. Middle row vents have never worked well. LTZ edition has numerous confusing controls. Terrible design.

Your Answer

TrailBlazer

Looking for a Used TrailBlazer in your area?

CarGurus has 4,320 nationwide TrailBlazer listings starting at $1,400.

ZIP:

Chevrolet TrailBlazer Experts

  • #1
    bigdogracer
    Reputation
    970
  • #2
    Tom Demyan
    Reputation
    890
  • #3
    tennisshoes
    Reputation
    710
View All

Related Models For Sale

Used Chevrolet Tahoe
832 Great Deals out of 42,639 listings starting at $1,980
Used Jeep Grand Cherokee
966 Great Deals out of 73,275 listings starting at $1,200
Used Chevrolet Silverado 1500
2,487 Great Deals out of 177,783 listings starting at $699
Used GMC Envoy
41 Great Deals out of 2,039 listings starting at $1,500
Used Ford Explorer
1,056 Great Deals out of 71,184 listings starting at $2,100
Used Chevrolet Impala
549 Great Deals out of 35,128 listings starting at $990
Used Chevrolet TrailBlazer EXT
8 Great Deals out of 979 listings starting at $2,195
Used Chevrolet Camaro
473 Great Deals out of 31,761 listings starting at $1,450
Used Ford F-150
2,940 Great Deals out of 215,705 listings starting at $1,295
Used GMC Yukon
601 Great Deals out of 22,381 listings starting at $1,200
Used Dodge Durango
314 Great Deals out of 24,182 listings starting at $1,500
Used Chevrolet Blazer
4 Great Deals out of 919 listings starting at $950

Used Cars For Sale

2009 Chevrolet TrailBlazer For Sale
4 Great Deals out of 101 listings starting at $4,295
2008 Chevrolet TrailBlazer For Sale
23 Great Deals out of 693 listings starting at $2,500
2007 Chevrolet TrailBlazer For Sale
29 Great Deals out of 714 listings starting at $1,995
2006 Chevrolet TrailBlazer For Sale
4 Great Deals out of 709 listings starting at $2,173
2005 Chevrolet TrailBlazer For Sale
14 Great Deals out of 600 listings starting at $1,400

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.