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Chevy TrailBlazer Loss of power

74 messages,  Last post on Jan 15, 2013 at 8:16 PM

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

    

Messages Page 4 of 8

#26 of 74 Re: 04 Chevy Trailblazer - Loss of power & Stalling [jims1024] by tahill

May 02, 2008 (9:45 am)

Replying to: jims1024 (Mar 07, 2008 11:09 pm)
Chevy 2005 TB
My truck first starting having hesitation issues when going up hill 35,000 miles. Of course I took in to the dealer they kept it for 3 days and could not find anything wrong or duplicate the issue. They told me it was probably a bad tank of gas. Things were fine...nothing happened until last week. Due to "other" issues I waited to have my 30,000 mile check up done last week. I am currently at 45,000 miles. I went to get in the truck to take it in and the check engine light came on. Not a big deal as I was already on my way to the shop, they did a diagnostic test and it was coming up as a o2 senor issue. The mechanic working on my truck told me what the code was but said that he did not think this was the issue. He did the 30,000 mile check up; the check engine light went off. I picked up the truck and things were fine until the past Tuesday night. I was driving to work...sitting idle at the exit ramp my truck shakes a bit then dies. I cut the engine off, restarted it no more issues on the way to work. That afternoon...same thing happened. Waiting my turn at a stop sign, car dies. Turn it all the way off, restarts with no issues. I drove it home. Wednesday night while turning onto our subdivision street coasting at a low speed the truck looses power again. Called up my mechanic he told me to bring it in right away...just got a call from him stating that GM has a PCM update that will re-calibrate several things from the transmission to the electronic throttle control. I will repost in a few days to let you know if this does correct the hesitation and stalling issues that I have been experiencing.
 

#27 of 74 Re: 04 Chevy Trailblazer - Loss of power & Stalling [tahill] by gredden

May 27, 2008 (5:32 am)

Replying to: tahill (May 02, 2008 9:45 am)
Please let us know!!
**************************************************************
I have a 05 TB with 60k miles. The problem that I am having is that when the engine is cold I will have power loss and as soon as I take my foot off the gas, the car will die. The engine starts right back up. The check engine light nor does any other service light come on. This problem is very sporadic. I did add some Lucas fuel treatment and we did not experience the problem, but I think it was just luck. This problem happened to my wife this morning. Any ideas???

#28 of 74 Re: 04 Chevy Trailblazer - Loss of power & Stalling [ficuss] by vbell

May 30, 2008 (11:06 am)

Replying to: ficuss (Dec 12, 2007 5:43 pm)
thanks alot!!! It hasnt done it for a good 6 months or more now!! Onstar has been reactivated and I havent had a problem since!!!!

#29 of 74 Re: 04 Chevy Trailblazer - Loss of power & Stalling [vbell] by gredden

May 30, 2008 (11:20 am)

Replying to: vbell (May 30, 2008 11:06 am)
Hey vbell
 
What exactly did they do to fix your problem? I'm taking mine in tomorrow.
 
Thanks

#30 of 74 Re: 04 Chevy Trailblazer - Loss of power & Stalling [gredden] by gredden

Jun 03, 2008 (1:26 pm)

Replying to: gredden (May 30, 2008 11:20 am)
It looks like I have solved my problems! I want to thank you all for the TSB concerning the loss of power and stalling. This past Saturday I went to the dealer and had the software update done. While at the dealer, the service person recommended a fuel system cleaning for $130. I declined because the service techs get paid a commission on what they sell. I added a can of Sea Foam to my tank. This is the same thing that a lot of mechanics use to clean the fuel system of carbon. I also replaced the O2 sensor on Sunday.
 
My TB is running like a dream! I'm also getting 18.4 MPG for everyday driving.

#31 of 74 I Had a by mookie14

Dec 11, 2008 (5:30 am)

a 03 tblazer and what you guys are going through is this there is fan clutch and its connected to the engine. Whats happening is its not the engine its the tranny how do i know the 03 i had i replaced well gm did 8 to 9 fan clutches and it still did not work. Turns out the tranny started to slip because REDUCED ENGINE POWER now the light may or may or may not come on because the fan won't let the engine over heat and its built into engine.
As honda's has a electric fan and it cuts on just when the engine is getting hot and it does not lose power. So as you guys drive you all will see you all are going to need trannies im not lying. The techs know but they are told NOT say anything about a defect and they are not going to let them waste all that time on a defect that gm did not fix. So trade out now and take a hit if you can and buy japs autos i did i got a honda and 27000 miles later no problems period.

#32 of 74 05 trailblazer by tahill

Dec 23, 2008 (9:30 am)

responding to my post from a few months ago...looks like I spent over 700.00 dollars to finally be told that the 02 sensor was bad! My truck has been running like a dream since it has been changed out. Luckily the shop did not charge me for the 02 sensor replacement, since I had to pay for everything else done that was not correcting the porblem. If you are experiencing the same issues have them change it out...my shop told me the sensor did not look bad thus the reason why they did not replce it the first time that i took it in...

#34 of 74 03 trail blazer stalling/loss of power by scavaness

Mar 03, 2010 (9:03 pm)

I recently pruchased 2003 trail blazer. Driving around town its fine. Driving down the highway, after about 40 miles or so, it loses power, but doesn't die. I pull over on the shoulder, shut it off, restart it & it goes on. Can someone HELP please. Has had it in chevrolet shop twice, w/ no explanations.

#35 of 74 2000 Trailblazer loss of power by oliviab25313

Jun 01, 2010 (5:42 am)

I have a 2000 BLazer/Trailblazer package w/173k on it. 1.5 weeks ago I replaced the intake manifold which gave me a little more zip and slightly smoother ride. So I was en route out of town and all of a sudden the SUV loses power. I was going 70mph and all of a sudden nada! I could not get it to restart. The electrical system seemed to be working fine. Battery good. All liquids fine. All other systems seemed to be fine.
I was towed to my mechanic (does not use computers just listens and looks) who said I need a new motor. I then spoke with another friend who is a mechanic who told me to take it back to the mechanic who did the intake, which I did. They are much more advanced than the first mechanic and have machinery that the car is being tested. So far no information.
Has this happened to anyone? What transpired? What else do I need to know? Thanks in advance!

Messages Page 4 of 8

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