2003 Chevy Trailblazer-CHECK ENGINE L...
Disgusted owner

Metairie, LA

#41 Feb 25, 2013
I bought a 2007 Trailblazer in January, 2010. It currently has about 85,000 miles on it and has been well maintained. Within the past 6 months, EVERYTHING has seemed to go wrong!
There appears to be a complete electrical failure. The gas gauge does not function at all (it always shows "empty"). The a/c does not work at all when turned to "4". The service engine light stays on nearly 24/7. Only one speaker is functioning at the present time.
Today, the controls on the driver's door suddenly stopped functioning- I cannot lock or unlock the car, cannot raise or lower any of the windows, cannot activate or deactivate the window lock, and cannot adjust either exterior mirror from the driver's seat!
On top of that, a plethora of strange issues have arose in the past: the key not releasing from the ignition, the engine not turning over, the battery "dying" without reason/explanation, power steering going out, alt. gauge dropping, reduced engine power (car will not exceed 20mph when this happens), rear windshield wiper coming on (without anyone turning it on), radio not working at all, radio changing stations on its own, radio erasing pre-set stations, power seat malfunctioning, the engine idles "roughly" at times, etc.
Additionally, molding, door trims, and interior plastic parts (i.e., around the door handles and surrounding the power seat control) have either broken without just cause or deteriorated before they should have!
I have brought the vehicle to the dealership for diagnostic testing at least a half dozen times, and each time no problems were detected, no explanations given, and no remedies suggested!
From what I've gathered, there were recalls issued for electrical/wiring problems as well as fuel gauge problems, yet I have NEVER received notice of any such recalls from GM!
To say the least, I am absolutely disgusted! Considering the number of problems/complaints that I have seen on various forums, it seems clear that Chevrolet/GM manufactured and sold a seriously defective product. Their failure to remedy these problems is causing an unreasonable risk of harm not only to the original buyers, but also to subsequent buyers, children who ride in the vehicles, and other drivers on the road- all of which could be seriously injured by Chevrolet/GM's faulty design and/or manufacture and/or failure to act responsibly!
I intend to further research this issue and to speak with some fellow lawyers to see what, if anything, can be done.
If anybody hears of any class action lawsuits or other effective actions/remedies, please let me know! My email address is: [email protected]
chevy guy

Jonesboro, GA

#42 Mar 22, 2013
I have 2003 trailblazer did all sensors i realy think i am goin to order new computer. and try it saf part is i realy like car. and have had spend a lot of time trouble shooting it i can't find anything mine drives fine then randomly starts loosing power at 42 53 mph check engin light is not always on mine has 144,000miles on it
Disgusted Owner

Metairie, LA

#43 Mar 23, 2013
chevy guy wrote:
I have 2003 trailblazer did all sensors i realy think i am goin to order new computer. and try it saf part is i realy like car. and have had spend a lot of time trouble shooting it i can't find anything mine drives fine then randomly starts loosing power at 42 53 mph check engin light is not always on mine has 144,000miles on it
Call GM Owners Group,(866) 790-5700, and speak with customer services about recalls. There were 3 open recalls/special coverages for my '07 that I never would've known about had I not called, & 2 were related to the fuel system. I had the same problem you're talking about, and it seems to have been resolved since I brought it to the dealership for repair work. If I remember correctly, one of the special coverages is for a sending unit port fracture.
Kena Barnes

Reston, VA

#44 Mar 26, 2013
I have 06 Trailblazer I took my car to dealer to see why my engine light was on. I was told to flush the throttle body, replace the thermostat, flushing the cooling system. After fixing all this my engine was reset after leaving the mechanic shop yesterday. Now the engine light is back on. I am at my wits end. I am sick of this. I would lke to know about this class action suit as well.

Woodbridge, VA

#45 Mar 28, 2013
I am having the same problem with a 2011 Tahoe. It is an apparent known issue that GM/Chevy is unwilling to fix. Please email me if a class action suit is started.
[email protected]
Linda Townsend DE

Middletown, DE

#47 Apr 10, 2013
I have had my 2003 Chevy Blazer in and out of shop sev times per year with constant fuel injection issues. Car will shake, check engine light starts blinking while driving then light goes stationery when vehicle stopped at light, etc. Have had fuel pump replaced three times, 2 fuel injectors, fuel pressure regulator. Now it is starting up again! When this happens vehicle looses power, labors to get up hills, intermittent shaking. If there is a class action suit I would appreciate any info on that! Pls email to [email protected] Thx

Tuckerton, NJ

#48 Apr 13, 2013
I have a '03 Trailblazer with 202000+ miles. First my engine light came on and the reduce power light came on. My Mechanic had replaced the throttle body/sensor and the gas pedal/sensor. it ran fine, about 108 miles later, until it broke down again today and had it tow back to my Mechanic. Going to take it to the dealership and check the ECM computer. I hope the will be the fix

Morris, IL

#49 Apr 16, 2013
I am having all these same issues on my 2003 trailblazer and have spent way to much money on this car and if there is a class action suite I really would like know about it. [email protected]
nicole corso

United States

#50 Apr 24, 2013
I've had these same problems. Can someone please ibform me of the class action lawsuit information. Ima sibgle mom of 4 and this money I spend when nothing is wrong is irritating
nicole corso

United States

#51 Apr 24, 2013
Email is corsonikki.nc@ gmail com

United States

#52 Apr 24, 2013
I freakin have the same problem I have to pull over cause I loose speed an engine power an the service engine light comes on just replace the throttle still does it just bought it on October ... I gotta say I do have a lemon
Ryan B

Des Moines, IA

#53 Apr 25, 2013
I'm having the same issues with my 03 trailblazer. Light comes on. No power. Stop for a minute and restart it. It will run fine for a while then it does it again. All of my gauges don't work. I've only owned the truck since February and have had nothing but problems. I even called GM and asked about recalls but my trailblazer doesn't have any open recalls they said. So who knows. Ao please if anyone can help please email me. I'm also down for the law suit. Any info please let me know. [email protected]

Omaha, NE

#54 Apr 28, 2013
2003 vehicle doing the same loss of power thing.sporadically right now.going to try a throttle body replacement. any luck on the lawsuit?

El Paso, TX

#55 May 3, 2013
I have a 2003 trailblazer, I was driving home when the reduced engine power light came on, fan clutch engaged and speed got stuck at 10mph. Replaced gas pedal sensor but nothing changed, rpms would go crazy and fuel gauge goes from full to empty constantly...I had filled the tank 2 hrs before it died. Was just told engine computer is bad...had 3 shorts repaired on it...please send info on lawsuit. Check engine light comes on and off since I got it. made the last payment on it and two months later this happens, truck has not been driven in 2 months because mechanics cannot figure out what the problem is. email [email protected]
Ace samples

United States

#56 May 4, 2013
I have an 02 trailblazer that I just bought about a month ago, hit it back from Tennessee and the transmission went out so I spent another 1400 on that and now .... The check engine light and reduced engine power light came on but it's driving ok except it ideals kinda funny ... Any ideas ?

Little Rock, AR

#57 May 6, 2013
I am having all the same issues you guys are having. if there is a law suit, I need in on this as well. I have done the APP Sensor, Throttle Body, and tested the fan clutch. All this has made it worse. before it would 30mph now 10mph is lucky. since it is ropping to 0mph. I will have the converters checked. email [email protected]
if any one has any more advise please let me know.
Chris Zachary LA

Oklahoma City, OK

#58 May 7, 2013
On night of May 2 driving home and my 03 Trailblazer had the Reduced Engine Power light come on and all exterior lights went out. I didn't notice loss of power. I pulled in the first parking lot I could; turned engine off. Restarted a couple of minutes later after calling husband to come get me. When restarted all lights working and everything seems fine. Did take to my mechanic and he got two codes (P0172 (3% fuel trim) and B2575) Replaced Light driver module as first step. Cost for part & labor $438. Hope this works but after reading all post I wonder!

Huntsville, TX

#59 May 14, 2013
I plan to check out what this guy has to say, as I have the same issues in the Trailblazer.


United States

#60 May 29, 2013
Please add me to the class-action suit email list. I'm at [email protected]


Ingleside, IL

#61 Jun 1, 2013
I am also having some of these issues with my 03 trailblazer. The check engine light came on today and then starts flashing around 35 mph. I can tell at least one cylinder is not firing. I have not had the reduced power issue yet. After reading am the posts on this forum I am not sure where to start with fixing it. This is the first issue I have had since I bought it 5 years ago. It only has 114,450 miles on it. I haven't spent any money yet but if there is a law suit I am in.

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