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Put new battery in my 2005 chevy trailblazer. Now when car is running and you turn on the ac the car idles down then stalls. Did not have this problem before.

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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tripletauto
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SOURCE: 2002Chevy trailblazer engine cuts off when heater & ac is on

remove the airintake boot and clean throttle butterfly with a rag and carb cleaner

Posted on Dec 03, 2008

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tripletauto
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SOURCE: 2002 Chevy Trailblazer idle down cut off when heater or AC is on

most of the time computer just needs to relearn itself. should straighten itself out after a drive.if not try cleaning the throttle plate

Posted on Dec 03, 2008

  • 1 Answer

SOURCE: Chevy Trailblazer 2003 ran the battery down now wont idle

try changing the air filter ,i had a problem ,at ilde in drive my trailblazer would stall, changed the air filter now it's not stalling and got my power back ,there is a secondary air pump that i have to change ,
not sure were it is ? still not running perfect but it's running better .and my service light is on too.
i got it put on scope ,it's the pump .
not sure if this helps ,but i'm start to run in to problems too,i have a 2004 trailblazer.
i like to do fix things myself ,i hope i can.it's the cost if you know what i mean.

Posted on Dec 18, 2008

  • 1 Answer

SOURCE: Vibration when in gear, and stalling.

The problem is the torque converter solenoid. I had it happen on my 94 Cavalier a few years back and was a cheap fix at the local car mechanic. What happens is the transmission warms up and hits a certain speed where the solenoid engages, but then it sticks and won't disengage until it cools down sufficiently. When it sticks, it causes the car to shake when slowing down and will snub out the engine if you come to a stop.

Posted on Mar 25, 2009

  • 109 Answers

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

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

Posted on Jun 29, 2009

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1 Answer

When im at a red light i turn on my ac and my engine gos off . but i can run my ac when im on the highway or im moving in the car. but when im getting ready to come to a stop i have to turn off the ac or...


Problem could be a number of things:
  1. worn or slick drive belt - drive belt slips and with AC on could cause stalling
  2. bad MAF (mass air flow) sensor
  3. dirty EGR valve
  4. bad TPS (Throttle Position Sensor) - controls idling speeds under all conditions ie. engine is cold, warm, running with AC on

Sep 08, 2011 | 2005 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

IDLE problems when I turn on the AC. Electrical power seems to fluctuates when the car is stop sign/light or other when i have the AC on. Check it the other day, started it up, disconnected the battery,...


alternator needs good battery to keep SCR in the regulator on if it is loaded it will shut down. this will happen when you try rolling window down or rear defog will load up the system. When the truck is running and battery is hooked up the vehicle should run at @700 RPM at idle and when A/C compressor is commended on it should idle up to @1000 RPM and then back down to @700 RPM when compressor cycle off again. But if the system almost stalls then the battery and alternator should be changed together, A bad battery will damage a new alternator and a bad alternator will damage a new battery.

Oct 07, 2009 | 2006 Chevrolet Trailblazer

2 Answers

Engine stalls


Assuming you have the correct size battery, this really shouldn't happen! I am assuming the engine is idling at fairly low RPMs, so when the AC kicks on, it kills the engine? It might be that you need to drive the car for a bit so that the engine computer can "relearn" your settings, which disappear when you change the battery. Or, when your battery died, one of your sensors might have gone with it. There is a idle sensor on most cars that raises the idle RPMs when the AC comes on.

Aug 30, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

Chevy Trailblazer 2003 ran the battery down now wont idle


try changing the air filter ,i had a problem ,at ilde in drive my trailblazer would stall, changed the air filter now it's not stalling and got my power back ,there is a secondary air pump that i have to change ,
not sure were it is ? still not running perfect but it's running better .and my service light is on too.
i got it put on scope ,it's the pump .
not sure if this helps ,but i'm start to run in to problems too,i have a 2004 trailblazer.
i like to do fix things myself ,i hope i can.it's the cost if you know what i mean.

Dec 17, 2008 | 2004 Chevrolet TrailBlazer

1 Answer

2002 Chevy Trailblazer idle down cut off when heater or AC is on


most of the time computer just needs to relearn itself. should straighten itself out after a drive.if not try cleaning the throttle plate

Dec 03, 2008 | 2002 Chevrolet TrailBlazer

13 Answers

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.

Sep 07, 2008 | 2004 Chevrolet TrailBlazer

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