Question about 2005 Chevrolet TrailBlazer

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I have a 2005 Chevy trailblazer aandafter having my spark plugs changed it stalls when the beat is turned on and will not rev abore 3000rpms when idling. It also stalls at low speesds if the heat is on. Otherwise it runs great

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  • Chevrolet Master
  • 14,585 Answers

Check the alternator for power output. Check the battery also. The 3000 to 4000 RPM is set at the factory so you don't blow the engine up.

Posted on Nov 15, 2014

  • tonie Nov 15, 2014

    I will have that checked today. I also changed a coil pack and it helped a to the point it does not stall out if the heat is off but still happens when it is on. The original Problem was a misfire after a tune up but the spark plugs were never changed or anything. I basically paid for nothing.

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6ya6ya
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Posted on Jan 02, 2017

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preciousluv
  • 3 Answers

SOURCE: 2000 Hyundai Accent will suddenly stall and wont restart

Have someone check the idle sensor. I had to have mine replaced along with another that I don't remember which one is was.

Posted on Jan 08, 2009

  • 20 Answers

SOURCE: i have 2005 chevy trailblazer heater wont work,

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

  • 25 Answers

SOURCE: I own a 2002 Chevy Trailblazer with 4200 vortec

Do you know if the plugs were changed, a bad or broken plug will also cause rough idle and slow acceleration?

Posted on Oct 21, 2009

Lloyd Six
  • 560 Answers

SOURCE: Idled high, replace IAC and PCV, now idles low and stalls

On modern day cars the parts that get fitted need to be adapted to the ECM using a decent diagnostic machine. I bet that this was not done and the car is now suffering as a result.
Something to try is resetting the ECU, simply disconnect battery for 10 minutes, reconnect, then start car from cold *without touching gas pedal* and leave idling until the rad fan comes on (this resets all the base idle settings) then take it for a drive - hopefully will solve the problem

Posted on Nov 18, 2009

  • 4 Answers

SOURCE: 1990 chevy lumina, idling problem... to rich.... stalling......

check egr valve for vacuum leak. pull hose from manifold. put hose in your mouth like a straw and **** on it. if the valve moves, then it's good. if it doesn't, you need a new egr valve. WARNING, they are fricking expensive! auto zone price $204. NO JOKE

Posted on May 14, 2010

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We took off the breather cover on a 2004 chevy trailblazer and there was water in it


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