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

meNmy02trailblazer
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

littlehorn
39,245

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.

6 out of 6 people think this is helpful.
Jon Mailander
55

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

4 out of 4 people think this is helpful.
Zack Salter
55

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
310

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

  • Vents 1 answer

    I have a 2003 Chevy trailblazer loaded. My battery recently died so I bought a new one. But once I replaced it, my car ran fine. But my heat, and a/c blows, but it's a very little blow. Why doesn't...

    2003 Chevrolet TrailBlazer LTZ 4WD

    -

    Maintenance & Repair

  • where is the thermostat in a 2002 trail blazer 2 answers

    don"t have any heat blowing. I just get cold air. the temp gage is normal range and the fan works on all speeds and works on defrost, vents etc. just no heat at all

    2002 Chevrolet TrailBlazer LTZ 4WD

    -

    Maintenance & Repair

  • Vent blowing issue 1 answer

    I have a 2003 Chevy trailblazer. Recently, the battery died. So I changed the battery. I noticed after I changed the battery, heat and air conditioning does not blow as hard as it did. It used to ...

    2003 Chevrolet TrailBlazer LTZ 4WD

    -

    Maintenance & Repair

  • Vent issue 1 answer

    I have an 03 Chevy trailblazer fully loaded... My vehicle recently died so I changed the battery.. The air flow in my front vents have considerably stopped blowing hard. I've done extensive researc...

    2003 Chevrolet TrailBlazer LTZ 4WD

    -

    Maintenance & Repair

  • Why does my AC suddenly start blowing hot air? 8 answers

    I have a 2004 Yukon with 160000 miles and about a year ago the AC would suddenly blow hot air just on the driver's side while the passenger side still blew cold. After a few weeks it then stating blow...

    2004 GMC Yukon

    -

    Maintenance & Repair

TrailBlazer

Looking for a Used TrailBlazer in your area?

CarGurus has 6,131 nationwide TrailBlazer listings starting at $895.

ZIP:

Search Chevrolet TrailBlazer Questions

Chevrolet TrailBlazer Experts

#1 Tom Demyan
Tom Demyan
Reputation 640
#2 dandyoun
dandyoun
Reputation 540
#3 tennisshoes
tennisshoes
Reputation 470
View All

Related Models For Sale

Used Chevrolet Tahoe"
957 Great Deals out of 36,336 listings starting at $1,500
Used Jeep Grand Cherokee"
1,142 Great Deals out of 73,769 listings starting at $495
Used GMC Envoy"
80 Great Deals out of 2,543 listings starting at $1,650
Used Chevrolet TrailBlazer EXT"
29 Great Deals out of 1,528 listings starting at $1,700
Used Ford Explorer"
1,148 Great Deals out of 67,684 listings starting at $777
Used Chevrolet Silverado 1500"
2,095 Great Deals out of 133,036 listings starting at $1,695
Used Chevrolet Impala"
849 Great Deals out of 32,888 listings starting at $1,300
Used Chevrolet Blazer"
4 Great Deals out of 1,665 listings starting at $995
Used Dodge Durango"
328 Great Deals out of 20,671 listings starting at $1,400
Used Ford Escape"
1,352 Great Deals out of 90,152 listings starting at $500
Used Chevrolet Camaro"
707 Great Deals out of 37,377 listings starting at $3,500

Used Cars For Sale

2009 Chevrolet TrailBlazer For Sale
9 Great Deals out of 145 listings starting at $4,995
2008 Chevrolet TrailBlazer For Sale
39 Great Deals out of 837 listings starting at $2,995
2007 Chevrolet TrailBlazer For Sale
37 Great Deals out of 947 listings starting at $1,600
2006 Chevrolet TrailBlazer For Sale
15 Great Deals out of 985 listings starting at $1,542
2005 Chevrolet TrailBlazer For Sale
19 Great Deals out of 948 listings starting at $1,850