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.

4 Answers

littlehorn
25,765

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
35

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
120

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

Your Answer

Add photo

Related Questions

TrailBlazer
Looking for a Used TrailBlazer in your area?
CarGurus has 6,514 nationwide TrailBlazer listings starting at $1,200.
ZIP:

Search Chevrolet TrailBlazer Questions

Chevrolet TrailBlazer Experts

#1 dandyoun
dandyoun
Reputation 210
#2 18TandSVT
18TandSVT
Reputation 190
#3 John Saffrahn
John Saffrahn
Reputation 170
View All

Related Models For Sale

Used GMC Envoy"
130 Great Deals out of 2,819 listings starting at $995
Used Chevrolet Tahoe"
967 Great Deals out of 32,001 listings starting at $1,999
Used Chevrolet TrailBlazer EXT"
78 Great Deals out of 1,603 listings starting at $1,500
Used Jeep Grand Cherokee"
989 Great Deals out of 52,151 listings starting at $995
Used Ford Explorer"
1,109 Great Deals out of 44,828 listings starting at $1,100
Used Chevrolet Silverado 1500"
2,001 Great Deals out of 172,854 listings starting at $950
Used Chevrolet Blazer"
26 Great Deals out of 2,157 listings starting at $995
Used Chevrolet Impala"
1,755 Great Deals out of 55,004 listings starting at $999
Used Ford Escape"
1,619 Great Deals out of 56,579 listings starting at $1,400
Used Ford F-150"
2,221 Great Deals out of 179,534 listings starting at $1,295
Used Dodge Durango"
357 Great Deals out of 19,907 listings starting at $1,669

Used Cars For Sale

2009 Chevrolet TrailBlazer For Sale
7 Great Deals out of 133 listings starting at $8,995
2008 Chevrolet TrailBlazer For Sale
68 Great Deals out of 966 listings starting at $4,995
2007 Chevrolet TrailBlazer For Sale
47 Great Deals out of 1,016 listings starting at $2,995
2006 Chevrolet TrailBlazer For Sale
26 Great Deals out of 1,023 listings starting at $1,980
2005 Chevrolet TrailBlazer For Sale
34 Great Deals out of 971 listings starting at $2,881