2003 Chevy Trailblazer my AC blower won't turn off!

The throttle body needs to be cleaned, grime in this area prevents the throttle plate from closing completely and allowing air to enter, making the air/fuel mixture lean. Make sure to clean the front and back sides of the throttle body. Also, disconnect the battery during the cleaning process to allow the computer to reset and relearn to the cleaned throttle body.

Oct 13, 2012 • 2003 Chevrolet TrailBlazer

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My 2003 chevy trailblazer makes a noise like pressure is releaseing as soon as turn the car off, What is this?

It is probably just your air conditioning. If you have your defrost on it also runs your ac pump. So if you have your ac or defrost on and you shut the vehicle off you will hear a hissing noise for about 10 seconds or so which is normal.

May 05, 2011 • 2003 Chevrolet TrailBlazer

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2003 Chevy TrailBlazer..bad rattling under truck and feet.

It could be a bad rear blower motor, or resistor? theres a lot under the truck that could make noise, have a repair shop check it and make repairs.

May 13, 2010 • 2003 Chevrolet TrailBlazer

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The heater/ac fan only works on speed settings 4 & 5

you might check your switch sounds like to me that your two lower speed sides of the switch maybe burnwed out.

Dec 19, 2009 • 2002 Chevrolet TrailBlazer

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2004 Chevy Trailblazer, At first you could only get the air conditioning to switch on by turnning the vehicle off and switching over to AC. Now the AC will not come on and it is always blowing hot air out...

Could be your main blower motor resistor, mine would still run the fan even after shutting off the vehicle.(safari van) Had to unplug the resistor to stop the fan,it was near the blower under the hood. Bought a new one for about $45 bucks. Replaced it and all is fine. Might want to check relays first, sometimes they stick and need replacing.
Good luck.

Dec 10, 2009 • 2004 Chevrolet TrailBlazer

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2003 Chevy Trailblazer AC won't turn off

Check on and off switch it may be defective.

Jun 29, 2009 • 2000 Chevrolet Impala

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Anonymous

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You have a short to power which will cause it to stay on constantly check your blower motor resistor pack to ensure that it is working and check the wires going to the blower to make sure you have a power and a ground

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G.w. Knight

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Got a 03 trailblazer. Blower motor will work when key is turned to start position but won't work when vehicle is started. Tested the resistor with a 12 volt tester

Answer 3 · 11/27/2009 12:00:00 AM

Anonymous

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Posted on Nov 27, 2009

SOURCE: 2003 Chevy Trailblazer AC won't turn off

blower motor control module under right side of instrument panel next to blower motor

Answer 4 · 11/27/2009 12:00:00 AM

Anonymous

41 Answers
Posted on Nov 27, 2009

SOURCE: 2003 Chevy Trailblazer AC won't turn off

blower motor control module under right side of instrument panel next to blower motor

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2003 Chevy Trailblazer my AC blower won't turn off!

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My 2003 chevy trailblazer makes a noise like pressure is releaseing as soon as turn the car off, What is this?

2003 Chevy TrailBlazer..bad rattling under truck and feet.

The heater/ac fan only works on speed settings 4 & 5

2004 Chevy Trailblazer, At first you could only get the air conditioning to switch on by turnning the vehicle off and switching over to AC. Now the AC will not come on and it is always blowing hot air out...

2003 Chevy Trailblazer AC won't turn off

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2004 TrailBlazer

I have a 95 Buick Roadmaster D blower motor will not shut off even if the key is out

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2003 Chevy Trailblazer my AC blower won't turn off!

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G.w. Knight

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Anonymous

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Attachments: Added items

Related Questions:

I have a 95 Buick Roadmaster D blower motor will not shut off even if the key is out

How To Install Replace Fix Heater AC Fan Blower Motor Chevy Trailblazer 02-09...

2008 chevy trailblazer auto climate control. My ac/heater blower kept running even after I just the car off. I replaced the blower motor resistor and now blower doesn&#39;t turn on at all. Did I b

The blower motor on my 2005 Chevy Trailblazer will not shut off unless I pull the fuse. It will only run on high and can't be turned down or off. It even runs when key is off.

2003 chevy trailblazer engine dies when ac/heater switch is turned on but blower motor is unpluged

My 2003 chevy trailblazer makes a noise like pressure is releaseing as soon as turn the car off, What is this?

2003 Chevy TrailBlazer..bad rattling under truck and feet.

The heater/ac fan only works on speed settings 4 & 5

2004 Chevy Trailblazer, At first you could only get the air conditioning to switch on by turnning the vehicle off and switching over to AC. Now the AC will not come on and it is always blowing hot air out...

2003 Chevy Trailblazer AC won't turn off

Not finding what you are looking for?

2004 TrailBlazer

I have a 95 Buick Roadmaster D blower motor will not shut off even if the key is out

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Manuals & User Guides

2002-chevy-trailblazer-ltz-manual.pdf....

2002-chevy-trailblazer-ltz-manual.pdf....

2008 chevy trailblazer auto climate control. My ac/heater blower kept running even after I just the car off. I replaced the blower motor resistor and now blower doesn't turn on at all. Did I b