2003 Chevy Trailblazer-CHECK ENGINE L...
Johnn C

Enterprise, AL

#122 Oct 3, 2013
My 03 trailblazer sometimes does not start and the lights low beams don't work either. Is it the ignition or PCM. anyone have this problem

Spring Hill, FL

#123 Oct 7, 2013
Have a 2002 Trailblazer, having all the same issues, I only have 104,000 please add me to the lawsuit. [email protected]
Johnn C

Enterprise, AL

#124 Oct 8, 2013
I have a 2003 trailblazer that does not start sometimes , no engine check light but did notice that it seems like the anti theft is what's stopping it from starting sometimes . could it be in the ignition or is it in the PCM .Anyone else have this problem.

Denver, CO

#125 Oct 14, 2013
I have the same problem with the reduced engine power and check engine light comes on, I have to pull over and restart it up to four times today! We changed the gas pedal yesterday as well as everything else mentioned! Please email me with any solutions! [email protected]

Chilliwack, Canada

#126 Oct 15, 2013
I was driving home the other night in my 2002 trailblazer when the flashing engine light came on. it ran rough for the duration of my trip, thought I wasn't going to make it home.. looks ike I have the same problems as everyone else.. please contact me as well if that lawsuit is a go.. [email protected]

Aurora, CO

#127 Oct 15, 2013
I have a 2002 trailblazer and i have replaced pedal sensor map senor and botj cam and crank senor and still it comes out as reduced engine power engine light and has very rough idle any ideas? Help!
Ginny Keeling

Haslet, TX

#128 Oct 23, 2013
Please send info on the class action suit.
going nuts

Cedar Springs, MI

#129 Oct 25, 2013
I also have issues, my 2001 blazer is chugging at low rpms and a little miss on cruise does not do it when i let of the gas pedal??? and check engine light is on. drives fine other then that. Only 128,000 miles. Any advice??

Virginia Beach, VA

#130 Oct 26, 2013
Does any on have an ANSWER to the OP issue. I can't stand when somebody asks a question and 8 million people chime in with "me too" with no solution. Smh

Lake Worth, FL

#131 Oct 26, 2013
I have a 2003 Chevy Trailblazer and it ''runs as smooth as silk. Surprised to hear of these problems too''

Portage, MI

#132 Oct 27, 2013
2004 trailblazer 131,000 miles I cant get my check engine light to go off for anything. Add me to the lawsuit as well. My email is [email protected]
going nuts

Cedar Springs, MI

#133 Oct 27, 2013
OK now this morning the blazer just stopped running as we were driving it rolls over but wont start up! sign me up for the law suit [email protected]

Baltimore, MD

#134 Oct 31, 2013
I have a 2004 Trailblazer and recently had the reduced engine power light on with the service engine soon light. These lights would come on when I was parked and turned my ac on high to get the car to cool off. My mechanic found a service bulletin out for certain VIN breaks regarding the PCM. I had the PCM reflashed, which can only be done at a GM dealer, and haven't had the problem again. A reflash updates the computer. I was told that if the reflash did not work that I most likely would need a new PCM which would cost over $1,000. If you are having problems with the reduced engine light, have the PCM reflashed. It only cost me a little over $50 and solved the problem for now.

Saint Anne, IL

#135 Nov 2, 2013
Having the same issue w my 05 trailblazer. Lights dim at random times. Now it stales all the time when idling. Can't get the check engine light to go off. The mechanics say they aren't sure the problem. Can't afford just to guess. If anyone has any solutions let me know. [email protected]

Mcgehee, AR

#136 Nov 6, 2013
I have been having the same problems as the other owners of chevy trailblazers,I just wish that I could found out what is wrong with all these trailblazers. We need help.

Sydney, Canada

#137 Nov 7, 2013
Having trouble with my 03 trailblazer loosing power. Wondering if anyone got anywhere with the class action lawsuit. If anyone could get back to me that be great. I also replaced the converters , and clutch fan. Email address [email protected]

Philadelphia, PA

#140 Nov 13, 2013
joan wrote:
Our 2003 Trailblazer runs as smooth as silk. Surprised to hear of these problems.
........mine did too at 19k until last week. Had fan clutch and water pump replaced......picked up today and NOW runs rough

Philadelphia, PA

#141 Nov 13, 2013
pat wrote:
<quoted text>........mine did too at 190k until last week. Had fan clutch and water pump replaced......picked up today and NOW runs rough
Now runs rough and check engine Lt on when picked up from shop.....$1100 now this !

Spring Hill, FL

#159 Dec 22, 2013
I replaced the computer / ecm on my 2004 trailblazer and it starts runs fine but the throttle does nothing at all. I replaced to computer 2 times but same problem. I heard need to replace throttle positioning sensor. Anyone have similar problems.

Yulee, FL

#163 Jan 2, 2014
I have a 2002 Trailblazer with only 154,000 miles on it that has all the problems being discussed. It has been regularly serviced and NO ONE seems to know what is wrong with it. I get a different diagnosis every time I take it to a shop. The check engine light stays on. The reduced engine light just came on for the third time. It has stalled on the Interstate once. I need this vehicle as I do not have the financial resources to replace it right now. Any suggestions?

Also, there are a few other aggravating problems with this vehicle that I cannot get resolved. The key will NOT open the door-it works in the ignition, but not the door. I can only lock and unlock door with remote control. Another major problem is the low beam lights go out unexpectedly. When they go out, EVERY light---dash, brake, tail lights go out. However, when I switch to high beam, ALL lights come on. I can drive with high beams, but it irritates drivers at night and caused me to get stopped by the police. I have gone to the dealer and several other shops but no one has been able to figure out what is wrong. Will appreciate any suggestions.

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