Question about 2005 Chevrolet Trailblazer Ext

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I have 2005 chevy trailblazer heater wont work,

I have 2005 chevy trailblazer LT V8 heater wont work, and car overheats when turning the heat or AC on. Could it be a broken fan belt?

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  • carhob May 11, 2010

    did you check coolant level?

  • Anonymous Mar 17, 2014

    no heat 2005 chevy trailblazer

  • Anonymous Mar 24, 2014

    can a 2008 chevy 4.2 engine from a trailblazer be replaced with a 4.2 from a 2005 trailblazer

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Sounds like your water pump is going out or your thermostat is stuck. Check the thermostat first and make sure it is not frozen in the clsed position.

Posted on May 08, 2009

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2005 motor in a 2008 chevy blazer


Chevrolet TrailBlazer - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Chevrolet_TrailBlazer
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Nov 06, 2015 | 2008 Chevrolet Chevrolet TrailBlazer LT

1 Answer

Why wont my 2005 chevy trailblazer run correctly after a battery change?


Because the computer was reset after battery change, and you probably need to have the throttle body cleaned. It grimes up often and needs to be cleaned every 10 - 15K miles.

Jan 16, 2014 | 2005 Chevrolet TrailBlazer LT

2 Answers

2005 chevy trailblazer ac won't work but defrost does while driving only


Hi. There happens to be a common problem with these trailblazers inside the ducting box located under the dashboard. The mode actuator door motor stops working due to a faulty motor itself and the default position is defrost only. As far as the Air Conditioning not working, there maybe another problem to diagnose there. Could be low refrigerant, or electrical problems to the compressor, or faulty fan clutch(another very common problem with these trucks). Type in mode actuator door and 2005 trailblazer in your search engine online i.e. Google or Yahoo and you will find many posts about this problem. I think there may even be a Youtube video about replacing it. Let me know you need more help. Thanks.

Aug 08, 2012 | 2003 Chevrolet Blazer

1 Answer

My 05 trailblazer cuts off when i turn the ac on


my TB did the same thing and I took off the ThrottleBody and took a rag with a can of Throttle/Carb cleaner and clean the ThrottleBody real good.....You will need some type of brush like a toothbrush to scrub of some of the old buildup of carbon.....my TB runs fine now....

Mar 16, 2012 | 2005 Chevrolet TrailBlazer LT

1 Answer

How do I fix a fan in a 2003 trailblazer LT


my 2003 Chevy Trailblazer EXT lt ac works/ but the fan won't go from low to any other setting? any ideas

Jul 07, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

I have a 2005 LT Trailblazer. When AC is on car stalls out.


Your car dealership should be able to help you reset
everything over the phone so it would set in right

May 28, 2010 | 2005 Chevrolet TrailBlazer

1 Answer

THE AC WONT BLOW OR THE HEATER


CHECK BLOWER MOTOR FUSE AND RELAY.IF BOTH GOOD.REMOVE BLOWER MOTOR HOTWIRE IT.IF DONT WORK REPLACE BLOWER MOTOR.IF BLOWER MOTOR WORKS.HEATER AND AC CONTROL SWITCH IS BAD.

Apr 30, 2010 | 2005 Chevrolet TrailBlazer

1 Answer

Air will only blow on floor no matter where i set the dial and is only warm this is a 2005 trailblazer


May be the heater/AC control unit in the dash.The heat stays on the floor because the door actuater moter is not switching direction of air flow and as far as the warm air,if you engine is up to operating temp,then the heater control valve is not opening fully.Both are conected to the heater/AC control unit.

Jan 20, 2010 | 2005 Chevrolet Trailblazer Ext

1 Answer

2005 chevy trailblazer, fan switch wont work on all speeds


Had the same problem on my 2005 trailblazer I replaced the resister and wire harness because wire harness was burnt on a few connections. Cost was 75 bucks for both parts at Napa auto parts works fine now

May 23, 2009 | 2005 Chevrolet Trailblazer Ext

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