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

meNmy02trailblazer
35

Asked by meNmy02trailblazer 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

littlehorn
31,705

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.

4 out of 4 people think this is helpful.
Jon Mailander
35

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

2 out of 2 people think this is helpful.
Zack Salter
45

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 out of 1 people think this is helpful.
ageary63
230

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 out of 1 people think this is helpful.
cardriver2000
0

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

Add photo

Related Questions

TrailBlazer
Looking for a Used TrailBlazer in your area?
CarGurus has 4,950 nationwide TrailBlazer listings starting at $999.
ZIP:

Search Chevrolet TrailBlazer Questions

Chevrolet TrailBlazer Experts

#1 dandyoun
dandyoun
Reputation 380
#2 Tom Demyan
Tom Demyan
Reputation 300
#3 lindatbrennan
lindatbrennan
Reputation 270
View All

Related Models For Sale

Used Chevrolet Tahoe"
402 Great Deals out of 26,737 listings starting at $2,999
Used GMC Envoy"
82 Great Deals out of 2,121 listings starting at $1,900
Used Jeep Grand Cherokee"
798 Great Deals out of 57,734 listings starting at $1,188
Used Chevrolet TrailBlazer EXT"
56 Great Deals out of 1,209 listings starting at $995
Used Ford Explorer"
638 Great Deals out of 39,822 listings starting at $1,295
Used Chevrolet Silverado 1500"
1,570 Great Deals out of 131,842 listings starting at $1,450
Used Chevrolet Impala"
1,495 Great Deals out of 53,183 listings starting at $600
Used Chevrolet Blazer"
14 Great Deals out of 1,583 listings starting at $1,291
Used Dodge Durango"
208 Great Deals out of 19,944 listings starting at $1,299
Used Ford F-150"
1,906 Great Deals out of 114,665 listings starting at $1,455
Used Toyota 4Runner"
196 Great Deals out of 10,704 listings starting at $2,000
Used Jeep Wrangler"
352 Great Deals out of 42,406 listings starting at $1,800

Used Cars For Sale

2009 Chevrolet TrailBlazer For Sale
84 listings starting at $6,195
2008 Chevrolet TrailBlazer For Sale
42 Great Deals out of 694 listings starting at $3,500
2007 Chevrolet TrailBlazer For Sale
30 Great Deals out of 793 listings starting at $1,700
2006 Chevrolet TrailBlazer For Sale
24 Great Deals out of 812 listings starting at $2,800
2005 Chevrolet TrailBlazer For Sale
39 Great Deals out of 746 listings starting at $999