Question about 2002 Chevrolet TrailBlazer

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A/C problem w/ 2003 Chevy Trailblazer

My car battery was dying, so I purchase a new one. When the mechanic replaced it and I was driving off, I turned on my A/C and as soon as I did that the idle started to drop then come back up again. This would keep happening about every 8 to 10 seconds. I called the mechanic, he said the computer needs to re-learn. It should be fine after 7 starts.

Is this correct or is something else wrong?

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The throttle has carbon build up so you have to get that cleaned before it runs properly again, i just had it done after i replaced my battery cost me 89 bucs and everythings fine now

Posted on Oct 03, 2008

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It has to relearn the idle should do this pretty quick. might also need to clean your throttle body if it doesnt straighten out

Posted on Oct 01, 2008

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


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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I was sriving my 2003 chevy trailblazer and the gauges went crazy and died now it wont start and no power to the gauges and wont come out of park


First check the battery and its cable connections, second, try working the ignition switch several times. After that, you will need a mechanic to check it out.

Aug 13, 2011 | 2003 Chevrolet TrailBlazer

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I have a 2003 chevy trailblazer, and when i turn on the ac it works fine as im driving, but when i stop the air turns hot and the car trembles and sometimes dies.


The first thing you need to do is clean the throttle body. This area of the air intake gets dirty and gummed up and prevents proper air passage. While the cleaning is taking place, make sure the battery is disconnected so that the computer will be reset and be able to relearn with a clean air intake.
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Jul 08, 2011 | 2003 Chevrolet TrailBlazer

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The engine dies when the ac/heater switch is turned on .


sounds like eithor the batery is on it's way or the alternator can no longer hold the load
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Jan 10, 2010 | 2003 Chevrolet TrailBlazer

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Air Conditioner blows hot on one side after battery DC


You need to replace the driver side temperature door control actuator. While doing this... make sure you bolt the new one in AND THEN PLUG IT IN or it will spin and not line up in the right place... then there is a series of crazy steps to fix that problem.

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My 2004 Chevy Trailblazer dies when I turn on the air conditioner


just check weather all spark plugs are ok, even if one misfires then turning ac on will stop the engine. during motion the ac manages to get the power from other plugs. i hope this solves ur problm.

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