I own a 2004 chevrolet trailblazer ext and just like the thousands of others mine has a defective gas tank filler on the top of the tank. It's a known bad part feom the factory. Mine has had a hole for a while now. It can literally leak over 10 gallons of gas a day if you fill the tank to full. Even if you don't the smell of gas in and around the vehicle is terrible. My check engine light is on because of it. It runs like crap because of it. What's more dangerous than spilling gas everywhere you go!? Some people have had chevy pay for the repairs on there 2004 trailblazer. Look it shouldn't matter what your VIN# is or how many miles at this point (I just hit 150,000) the gas tanks on these vehicles are faulty, they're dangerous, they're exspensive. I surely dont have $800-$1500 laying around to fix a part that is known and proven to be bad. We all know tbey are bad, chevrolet knows it, the federal safety agency knows it. The kicker is you cant even find used gas tanks for these things to save money. Every single one is junk or already replaced one that was junk. It is completely crazy that the owners of these vehicles where never probably taken care of in regards to this issue with the gas tanks
2004 Chevrolet Trailblazer: check engine light
62 of the 1,081 complaints about the 2004 Chevrolet Trailblazer describe check engine light.
- owner complaints
- 62
- of this car's complaints
- 6%
- typical repair cost reported
- $1,300
- typical mileage
- 74,393
- recalls
- 0
Check engine light by model year
What owners say
2004 chevy trailblazer keeps getting cam position sensor fault. Causing check engine light to come on. Seems to be a common problem with this model. We have replaced this part three to four times on our truck. Truck began to run rough engine knocked and had reduced power.
After starting my 2004 chevy trailblazer the gauges on the instrument panel did not work. But the ABS, seat belt, break and check engine lights are on. The indicator for gears is out. The speedometer jumps so not always sure how fast I'm going. I have only owned this vehicle for a short time. But after some research I have discovered that this is a very common problem with this vehicle.
Tl* the contact owns a 2004 chevrolet trailblazer. While driving 45 MPH, the contact detected a fuel odor coming through the vents. The contact mentioned that the check engine indicator illuminated prior to the failure. The contact also stated that the instrument panel did not illuminate and the speedometer did not operate. The vehicle was taken to an independent mechanic where the contact was informed that the fuel pressure regulator needed to be replaced. The vehicle was not repaired. The dealer and manufacturer were not made aware of the failures. The failure mileage was 153,000.
Tl* the contact owns a 2004 chevrolet trailblazer. The contact stated that the service engine light warning indicator illuminated and there was an abnormal fuel odor in the vehicle. The vehicle was taken to a dealer where it was diagnosed that the vehicle needed a fuel cap. The vehicle was repaired however upon further inspection the technician informed the contact that the fuel hose had a tear and the fuel pump module would need to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The contact referenced the federal safety agency campaign: 09v419000 ( fuel system, gasoline) as a possible solution to the failure however the VIN was not included. The failure mileage was approximately 162,000.
My vehicle is in the gm special coverage adjustment program number 07099 and is under the gm spl coverage pgm update 14423. I was notified that the icv could fracture and create an 'engine service soon' light. That light was activated in february. I took it in, it's the icv. They said they'd replace the fuel tank as soon as they could get parts. They still don't have the replacement -- and say it could be may or june. Meanwhile the 'check engine' light could be on for icv -- or it could be another problem. With dripping fuel out in the open, it's a safety hazard -can't be used on a trip and can't be sold/traded as it's defective.
Tl* the contact owns a 2004 chevrolet trailblazer. While the vehicle was parked, it had a strong odor of fuel fumes and the check engine warning light illuminated. The contact stated that there were also a few drops of fuel on the garage floor under the vehicle. The vehicle was taken to a dealer where it could not be diagnosed. The manufacturer was made aware of the failure. The failure mileage was 134,000.
Tl* the contact owns a 2004 chevrolet trailblazer. The contact stated that the vehicle emitted a strong fuel odor while driving and the check engine warning light remained illuminated. The vehicle was taken to the dealer where it was diagnosed that there was a leak code at the evaporation system. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 150,300.
Tl* the contact owns a 2004 chevrolet trailblazer. While driving at 30 MPH, the headlights failed and the check engine indicator illuminated. The failure occurred on several occasions. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.
It was raining went to turn on the back wiper blade and all I heard was a pop and the fuse blew, a few miles down the road engine still ran, but check engine light, airbag light, battery light, most of the instrument panel was out, the radio turned off, windows would not open and doors automatically unlocked, got to a safe spot to stop turned the blazer off let it set turned it back on, check engine light still on all the others went out and the windows opened when I hit the button. When one fuse cost 8.00 and blew as soon as I put it in, I can't afford to fix all this, and I am afraid to drive it on the expressway which is how I get to work, just in case of fire or additional problems.
Engine started misfiring on random cylinders,misfire does not stay on same cylinders. Has dramatic loss of power. Diagnostic code says random misfire. Dramatically decreased fuel economy. Bad vibration. Service engine light flashes during misfire. Does not have a constant misfire, it comes and goes.
Fuel tank crack the check engine light came on with a vapor leak error and I smelled a slight gas vapor. I took it to my mechanic and he could not identify the source of the vapor leak. After a couple of months, the gas smell became more noticeable and I took it back to my mechanic. A smoke test revealed that the fuel tank is cracked where the fuel tank filler hose is connected to the tank. Although other chevys are covered under recall for this problem, the 2004 trailblazer is not. The tank alone is $790 to replace not including labor of about $150 at my mechanic. I have read many other complaints about this issue for this car and believe that there should be a recall. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).
Service bulletins that may apply
- This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves...
- This bulletin advises the technician of possible location of an internal coolant leak from a specific...
- This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake...
- This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil...
- This PI bulletin advises the technician on the proper way to install the pistons in an engine.
- This service bulletin provides graphics, information and guidelines for engine component wear to assist...
- Engine
- This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter...
Related recalls
No recalls on record for this model year.
Questions about the 2004 Chevrolet Trailblazer check engine light
Is check engine light a common problem on the 2004 Chevrolet Trailblazer?
62 of 1,081 owner complaints about the 2004 Chevrolet Trailblazer (6%) mention check engine light. The model year with the most reports is 2006.
How much does it cost to fix check engine light on the 2004 Chevrolet Trailblazer?
Owners who mentioned a price put the repair at about $1,300 (median of 10 complaints that include a dollar amount). Costs vary with mileage, warranty and where the work is done.
Is there a recall or service bulletin for this on the 2004 Chevrolet Trailblazer?
There are 0 recalls and 133 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2004 Chevrolet Trailblazer
Headlights 100Fuel gauge 98Fuel smell 36Stalling 34No deployment 28Fire or smoke 27Fuel leak 26Loss of power 18ABS 17Adaptive cruise 14Warning lights 11Fuel pump 10Wipers 10Won't start 10Tire blowout 9Transmission failure 8Airbag light 7Ball joint 7Grinding brakes 7Door locks 7Slipping 7Brake failure 6Knocking 5Overheating 5
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