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Chevy TrailBlazer Revs Then Stalls

9 messages,  Last post on Sep 21, 2011 at 1:23 PM

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What is this discussion about? Chevrolet TrailBlazer, Engine, SUV

    

Messages Page 2 of 2

#2 of 9 Re: '03 Trailblazer revs, then idles so low it shuts off [yellowcloud] by kbotga

Jan 01, 2010 (10:14 pm)

Replying to: yellowcloud (Nov 12, 2009 4:54 pm)
Mine does the EXACT same thing. My husband changed the O2 sensor but that didn't seem to solve anything. Did you ever find the solution? I'd love to know!

#3 of 9 Re: '03 Trailblazer revs, then idles so low it shuts off [kbotga] by booger69

Feb 19, 2010 (5:06 pm)

Replying to: kbotga (Jan 01, 2010 10:14 pm)
I have a 2005 Trailblazer after installing a performance module in the IAT SENSOR it started to run really ruogh . I removed the module but it is now reving and then idling low and shutting off. ANY ONE HAVE ANY CLUE.

#4 of 9 Re: '03 Trailblazer revs, then idles so low it shuts off [kbotga] by fj4072

Feb 22, 2010 (5:59 pm)

Replying to: kbotga (Jan 01, 2010 10:14 pm)
Does this happen only when your defroster OR A/C is on? If so, clean your throttle body, will solve the problem.

#5 of 9 Re: '03 Trailblazer revs, then idles so low it shuts off [yellowcloud] by bigdog2371

May 23, 2010 (6:17 pm)

Replying to: yellowcloud (Nov 12, 2009 4:54 pm)
TPS (throttle position sensor), thats your problem

#6 of 9 Trailblazer idle fluctuates with AC on then stalls by tdi6

Jul 07, 2011 (6:42 am)

I have a 02 trailblazer my wife drives. when the ac is turned on the idle fluctuates between 1000
rpm and trying to stall and then of course stalls. I cleaned the throttle body and now it wants to idle high about 2000 rpm till it warms up and then 1000 rpm and come down slowly to about 600 rpm and idle steady. Every time I stop its 1000 rpm them slowly down to 600 rpm.

#7 of 9 Re: Trailblazer idle fluctuates with AC on then stalls [tdi6] by burdawg

Jul 08, 2011 (9:44 pm)

Replying to: tdi6 (Jul 07, 2011 6:42 am)
I'd check the TPS, throttle position sensor first. It's basically a variable resistor that you can check with an ohmeter.
After that I would look at the IAC valve, many times an erratic idle is caused by a gummed up sticking one.

#8 of 9 engine stalls at stop by gator33

Sep 06, 2011 (9:13 pm)

I have a 05 ext/ls, ocasionaly (2 or 3 time a day) when coming to a complete stop the engine starts to idle very low and rumble and if I don't press the gas peddle it stalls. If I catch it before it stalls and press the gas peddle it hesitates alot before it feels like it gets fuel and the rpms raise. But while moving it runs fine. The check engine light is on and its codes read- fan clutch, fan clutch switch, and o2 sensor. The gas cap light comes on every now and then and feels like it doesn't seal completely closed. Also the 5th speed on my ac unit switch doesn't work but 1-4 do. The rear speakers of the stereo are in and out, usually out. The door ajar and seatbelt chimes are also in and out along with the rear speakers.
      
     PLEASE HELP

#9 of 9 Re: '03 Trailblazer revs, then idles so low it shuts off [yellowcloud] by kshendrix

Sep 21, 2011 (1:23 pm)

Replying to: yellowcloud (Nov 12, 2009 4:54 pm)
I had the same problem. It was like that for a year. I just fixed by cleaning the throttle body. It wasn't hard. I Google it and and found this link. Made it so easy! http://forums.trailvoy.com/showthread.php?t=51619
 
Hope it helps you too!
 
Step by step instructions and pictures to help.

Messages Page 2 of 2

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