2004 Chevrolet Trailblazer EXT: check engine light

Filed Sep 26, 2012 · Acceleration, Electrical · 120,000 miles · GA

All gauges on control panel not working, but all service lights come on check engine, ABS seat belt, reduce power, battery lights. Speed and fuel are impossible to know as well as warnings to observe from lights. 2004 chevrolet trailblazer, speedometer will show a faster speed than you moving or will go to 0 while on the freeway. The tach has the same problem. This is a serious safety issue and it should be recalled now. I heard that they had the same issue on pick-ups and they were recalled. Most instrument backlights have burned out preventing the speedometer and other gauges from being seen at night. Very dangerous. Quick search on internet results in a severe epidemic of this problem with all gm SUV's. A class action lawsuit resulted in a nationwide recall for this problem for all similar vehicles but not the chevy trailblazer or gmc envoy. This seems to be a criminal act by gm. Something needs to be done to protect owners of these vehicles. Driving down highway headlights go out..while driving at night the low beam lights went out, I had to drive home with high beams on, http://www.aboutautomobile.com/complaint/2004/chevrolet/trailblazer/electrical+system check out all these other complaints there are hundreds of them and I am one of many. This is so dangerous and a safety hazard to others as well, please get us a recall on these cars the expenses are tremendous.

Filed Sep 2, 2012 · Fuel system · 96,000 miles · UT

I just gased the chevrolet trailblazer and was driving down the road and we could smell gas did not think much of it because we just got gas then the check engine light came on it was a po442 code evaporative emission control small leak detected so I have been smelling gas off and on and keep getting the po442 code. So I go buy a vent valve solenoid and put it on clear the code I notice gas around the intake pipe on the gas tank so I take a closer look and its broke half way around the filler neck and this is a recall on certain VIN #s but mine is not included in this recall I think it should be when you are dealing with fuel and the amount of fuel that can leak out this can be a fire hazard for sure I think gm needs to step up and take care of this problem on all vehicles that have this problem instead of picking an choosing certain VIN #s.

Filed May 5, 2012 · Acceleration · 30,000 miles · PA

Issue originally occurring in 2008. Speedometer failed...first getting stuck then not returning to zero. When turning vehicle on again, speedometer would sporadically work, then get stuck, then stay on zero. Brought to 2 chevy dealerships while still under warranty (purchased extended warranty on date of purchase) and was told "the problem could not be reproduced", so nothing could be done. The problem was intermittent, as well as "service engine light" going on for periods of time ....again checked by gm dealerships and other mechanics but nothing found. Here we are in 2012, I recently started driving this vehicle again as my husband was driving it and apparently didn't mind the speedometer not working at times, but, with his unexpected death in november, and my son away at college, I had planned to give the vehicle to my son to take to college, but no speedometer is definitely a problem. As I am researching this issue I am seeing many consumers have had the same experience. Why has this not been a recall by gm. There are claims of other mechanics being able to repair this issue at a pretty hefty cost. I am in no position to pay for a repair of something that should have been taken care of under the warranty we purchased, which, by the way was not cheap. Is not safety something gm has on its' priority list. Driving with no ability to know how fast or slow you are traveling is definitely an issue. I request an investigation be launched to determine the cause of this defect, which I have no doubt will result in a gm recall to repair this safety issue.

Filed May 2, 2012 · Engine, Wheels · NJ

I was wondering how come there hasn't been a recall for the chevy trailblazer ext for the throttle body. I see that they have recalls on other chevy cars with the same issue. This is a very dangerous issue as when this goes you have a reduce engine light that comes on. Which I didn't know what that meant until my car wasn't going any more than 20 MPH. This is very dangerous to be on the road like I was and can't speed up or better yet trying to turn when you don't have the power to do so. Also, I see that there were also alot of issues with the speedometer. Which also I had that problem has to pay too much money to get this fixed. As how they would say their are manufacture parts which definitely hurts your pockets. If they know that they have these issues they really need to rectify because both of these issues cause some serious problems on the road. I know they are wear and tear on cars / trucks but if you have too many people having the same problems I think they should do something to resolve these issues.

Filed May 3, 2011 · Electrical · 50,000 miles · OH

On our 2004 chevrolet trailblazer the only gauge that works all the time is the speedometer. Most of the other gauges ' including the fuel gauge, tachometer, etc, ' don't work at all! The coolant temperature gauge works only sporadically. In addition, the dashboard warning lights also do not function properly: the airbag light, ABS brakes light, and 'check engine' light unpredictably remain lit ' not always at the same time - sometimes for days at a time when the car is on. There is no pattern as to when the lights will stay on and when they will remain off. I am reporting these problems to you since I read that you are investigating this same problem in 2005 through 2007 trailblazers. I feel you should expand your research to include 2004 trailblazers.

Filed Feb 4, 2011 · Electrical · VA

The speedometer in my 2004 chevy trailblazer ext completely stopped working about 6 months about. We have been dealing with this issue and just praying we do not get a speeding ticket. Now the check engine light continues to stay on even when reset. I am not being told I need to check the fuse which was unsuccessful. I can only imagine if the next thing to go will be all the electronics in the dashboard. This seriously needs to be a recall item!

Filed Nov 21, 2010 · Transmission · KS

About 10 miles outside of dallas my check engine light came on but no initial problems. Later that night while driving on the interstate the car would not go faster than 30mph. I returned home that night and left it parked. The next day took it to autozone and the guy did an engine check stating that my transmission has gone out and that it was low on fluids. I added 3 quarts of transmission fluid which seemed to help a little bit, but I do not feel comfortable enough making an 8 hr trip back home.

Filed Oct 25, 2010 · Electrical · TX

My check engine light started coming on and staying on; then my oil gauge started going wacky, from one end to the other; next, my gas gauge wasn't reading correctly and I had to keep putting gas in the car just to make sure I didn't run out because you couldn't trust the gauge. The gauges often correct themselves out of the blue and then they start messing up again with no warning. Today, my speedometer read 0 while I was driving about 40 MPH. It stayed at 0 until I stopped at a traffic light. When I took off, it went up to about 45 when I was only going about 25-30. I have no idea how fast I am really going, which is scary and dangerous. I am also very frazzled by all the gauges reading different every day when I am driving 40 miles back and forth to work wondering if and when my car is going to break down on the highway or in heavy traffic.

Filed Sep 9, 2010 · Electrical, Engine · 120,000 miles · MA

Check engine light - for over one year now, and 4 various mechanics, no once can figure out why my check engine light comes on. I have replaced two air sensors (actually 3 - one was bad)... I have spent close to $1,000 to get this fixed - but the dam light continues to go on (intermittently) sometimes it's on for a month - off a day - on two weeks - there is no pattern. The last time the light came on, my car began stalling in traffic and stop signs. Last mechanic spent 5 hours tracing all the codes back - nothing. Next day had another mechanic check codes and the engine running cool as well as a few others showed up. If no one can figure this out - where is the recourse. I feel like I am being scammed over and over. I stalled on rt. 24 slowing down in traffic - and was almost hit by a box truck because I just sat there. Who can help direct me to a repair which will ultimately end this issue? Now, the lights off this week (watch, now that I say this it will come back on). The only thing I notice is that many times the light turned off after I filled the tank. So, is there anyone out there who knows what's wrong (referring to mechanics who take us for a ride $$$)? I challenge anyone out there to figure this out.

Filed Aug 31, 2010 · Electrical · IN

My chevy trailblazer displayed a service engine light and 4 wheel drive service light a few days ago. Got it to the dealer. They stated the thermostat and 4 wheel drive switch needed replaced. ($550.00). The day this was replaced, I drove it home and tested the 4 wheel drive switch. As soon as I pressed on the gas in 4 wheel drive, the tach shot to 5000. It displayed 5000 for the rest of the day (even while idling). The next day, the tach stopped working all together. Dealer won't take responsibility for any error or reasoning to why it quit working. Just a coincidence?????

Filed Mar 24, 2009 · Electrical · VA

I have a 2004 chevy trailblazer extended SUV. My check engine light has continuously flash on and off since having the truck only six months. It has continued to do this for the life of the car at almost 70,000 miles. Also, my speedometer now works only when it wants to. At first we thought it was because of the cold weather, now it is almost 70 degrees and we have the same problem. Sounds as if this if very common in these models. Someone needs to find a way to compensate owners for these costly repairs.

Filed Mar 15, 2009 · Fuel system · 8,400 miles · MD

The vehicle was purchased in sept 2004. In march 2005 I started noticing it was hard to start in the morning when it was cold and it idled roughly and would stall when I pressed the gas pedal to accelerate. The dealer found nothing wrong with it then. In april 2005, with 9400 miles on it, the service engine light came on so I took it back to dealership. They cleaned out (flushed) the fuel system and proceeded to tell me not to buy "cheap gas" because sometimes it will have particles in it that can clog up the fuel system (then what is the fuel filter for?). Since then I have had the fuel system flushed three more times. I probably could have had it done more times, but it is extremely inconvenient to keep going to the dealership and being without a vehicle, so I just dealt with the rough idle and hesitations. I buy gas the same places as everyone else in my family, yet I am the only one experiencing this problem. I bought fuel injector cleaner and put it in the gas tank every couple of fillups. The dealership has offered to replace the fuel injector that keeps clogging, but of course none of the mechanics ever made note of which one it was. So when the problem recurs I must take it back to the dealership again.