Print this page Notes: The Trailblazer emerged from an "upscale trim line" of the Blazer, but there's nothing upscale about its transmission problems or its wonky, unpredictable headlights.


hardly worth mentioning
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
54,324 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2002 Chevrolet Trailblazer fuel system problems

fuel system problem

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2002 Chevrolet Trailblazer Owner Comments

problem #17

Sep 012010

Trailblazer 6-cyl

  • 144,000 miles


I have been smelling a gasoline odor on the side of my SUV where the fuel door/fuel tank is located. Research on the internet yielded many Trailblazer owners reporting fuel tank/sending unit/pump corrosion resulting in a fuel leak. A family member of mine just had this exact problem repaired on a 2003 Chevrolet Trailblazer. I believe this same issue is starting with my 2002 Trailblazer. I replaced the gas cap to eliminate the possibility of the gas odor coming from the tank fill area, but the odor persisted. The odor resembles an actual gasoline spill and/or leak and not just gasoline vapor odor, ie: Filling the tank. Like I stated before, internet research yields many Trailblazer owners reporting this issue and having to pay for costly repairs. Any issue regarding the fuel system/gasoline, in my opinion, should be an immediate safety concern. I have not received any information from GM in regards to a recall bulletin. I am going to conduct more investigation, but in the meantime the smell of a gasoline leak is unmistakable. I hope this information is helpful and I hope that a recourse regarding this issue and its repairs can be formulated. In the meantime I feel that a major safety issue is present and needs fast and efficient attention. Thank you. The consumer stated the fuel pump was severely corroded on the top including two fuel lines that exit the top of the fuel pump. There was a fuel leak resulting from corrosion. The consumer paid for the repairs at his expense. Updated 12/16/10

- North Providence, RI, USA

problem #16

Feb 252008

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • miles
Have a 2002 Trailblazer that started to smell like fuel. Took to dealer and they said gas tank was cracked where the fuel pump meets tank. Whole vehicle smelled like fuel. Chevy dealer charged me $1,200 for new tank, fuel module and ring. Really dangerous with all the fumes and disappointed in Chevy with no help!!

- Conway, PA, USA

problem #15

Jan 292008

Trailblazer 6-cyl

  • Automatic transmission
  • 48,000 miles
Gas fumes inside of vehicle, fumes and leaking gas outside of vehicle near gas tank. Took to GM dealer to diagnose and they replaced rusted and leaking fuel pump module at my cost I did ask for and had returned the old part which was rusted. Would this not be considered a safety hazard with leaking gas? it is a blessing that there was not a fire.

- Warren, MI, USA

problem #14

Dec 272007

Trailblazer 6-cyl

  • Automatic transmission
  • 71,585 miles


The contact owns a 2002 Chevrolet Trailblazer. The contact stated that he smelled a strong gas odor in his vehicle. The dealer stated that the fuel pump assembly rusted and should be replaced. The current mileage was 71,605 and failure mileage was 71,585. Updated 01/29/08 updated 01/29/08

- Tickfaw, LA, USA

problem #13

Dec 072007

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 86,000 miles
The contact owns a 2002 Chevrolet Trailblazer. The contact smelled a strong gasoline odor in the passenger compartment. The vehicle would not start so she replaced the fuel filter. Immediately after repairing the vehicle, she noticed the same failure. A local mechanic stated that the fuel pump module needed to be replaced. The contact has filed a formal complaint with the manufacturer. The current and failure mileages were 86,000.

- Mount Vernon, OH, USA

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problem #12

Sep 012007

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 76,000 miles
Gas vapors coming from under left rear of vehicle when I fill it full of fuel. I saw that this issue is under investigation. I have not yet repaired the vehicle as I am awaiting the outcome of a potential recall. I currently just don't fill it full of fuel.

- Elkton, VA, USA

problem #11

Nov 272007

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 120,000 miles


For several days, I smelled gasoline around my vehicle and had trouble starting the vehicle. Once I got it to a garages, I was informed that the fuel pump assembly was completely rotten and needed to be replaced. The mechanic informed me that he has never seen this before on a modern vehicle. The fuel pump was working, but the components into the pump were rotten and leaking, thus requiring the replacement of the entire fuel pump.

- Dalton, PA, USA

problem #10

Aug 152007

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • miles
2002 Chevrolet Trailblazer has developed fuel leak from fuel sending unit module. Must have approximately $550 repair done for simple safeties sake. Can't drive around leaking fuel. Unusual for a 5 year old car to develop gas leaks due to manufacturer defect. Would like recall and reimbursement for needed repairs. Thank you.

- East Berne, NY, USA

problem #9

Jul 212007

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 85,000 miles
Refer to NHTSA action number: PE07013 and EA07009.... ODI has received reports that the fuel pump module leaks fuel and or vapor underneath the vehicle. GM states, "the failure mechanism is corrosion of the fuel pump module flange which may lead to a fuel leak. Corrosion of the fuel pump module flange is the result of the vehicle operating in a corrosive environment." ODI has opened this engineering analysis to further assess this issue.

- Marietta, GA, USA

problem #8

May 282007

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • miles
Strong smell of gasoline when starting the truck coming from under where back tire well is.

- Bensalem, PW, USA

problem #7

Apr 292007


  • miles


2002 Chevy Trailblazer fuel pump module corroded and was leaking fuel.

- Rochester, NY, USA

problem #6

Apr 282007

Trailblazer 6-cyl

  • Automatic transmission
  • 107,758 miles
The contact owns a 2002 Chevrolet Trailblazer ls. The contact smelled gasoline fumes from the rear of the vehicle. A pool of gasoline was discovered underneath the vehicle. On March 12, 2007 the contact located an open investigation on the NHTSA website action # PE07013 regarding fuel system, gasoline:delivery:fuel pump. The dealer stated that the fuel pump module needed to be replaced, and will take three to four hours to pull the gas tank, and $700 for the repair. The contact stated that this was a safety problem because the vehicle could catch on fire. The current and failure mileages were 107,758.

- Warren, MI, USA

problem #5

Mar 082007

Trailblazer 6-cyl

  • Automatic transmission
  • 50,857 miles
The contact owns a 2002 Chevrolet Trailblazer. While parked the vehicle was dripping gas. The contact took the vehicle to a local shop and several gas leaks were discovered. The dealer was called to check for any recalls on the vehicle, but there were none. The mechanic disassembled the gas tank, and found that the electric fuel pump module was completely corroded. The current and failure mileage were 50857.

- Derby, NY, USA

problem #4

Mar 192007


  • miles
2002 Chevrolet Trailblazer lt fuel leak in sending unit. Corrosion causes hole in sending unit, therefore fuel leaks from tank. Estimated repairs from Chevrolet dealership $700. I was informed this is extremely common with this vehicle, and was told to refer it to this website.

- Buffalo, NY, USA

problem #3

Aug 292006

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 115,300 miles
Became difficult to start engine over 3 days. Then could smell gas. Fuel sending unit had 2 tiny holes. Could have caught on fire. 8jb

- New Castle, PA, USA

problem #2

Jun 012002

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 19,000 miles
Purchased Feb 1, 2002. Since then have had nothing but problems. Had into 4 different dearlerships fixing many problems but after each visit another problem occurs. From tail lights burning out, windhshield wiper motor failures, instrument cluster replaced, heater control panel replaced once, memory mirror modules replaced 2 times, heated seat switches replaced 2 times, rear window defogger/replaced entire rear window 1 time, battery replaced 1 time ( said battery was at fault for current problems) battery was fine and charged me $ 150 for new battery that was not the correct battery replacement, exhaust gasket became loose/loud and had to be replaced, the fuel pump replaced because it just cut off as I was on the expressway going approx 65 miles an hour, I had to get to the side of the road quickly- had to be towed to dealership. Problem fixed, however after I picked it up then the current problem began. I could go on and on with the problems that I have had. Present problem is that whenever I turn on the heat it dies out with no warning---just stops and stalls. Dealership says they fixd it but upon pick up the problem still exists. Gone to pick it up 2 times, but when I start it and put on heat, it dies all over again even after dealership claims they fixed it. I live in Chicago and it has been a cold winter. Almost caused a crash on another expressway on way home from having the airbag sensor and a complete brake job done and all fluids changed. This vehicle is not worth $ 37,000 and I feel it is time that GM accept some responsibility for this lemon of a vehicle. It is my only vehicle and I am still paying dearly for it but lately cannot even use it as it remains in one dealership after another at my expense. I will not purchase another vehicle from GM. I need help and answers as I am not getting anywhere even with this vehicle still under warranty.

- Chicago, IL, USA

problem #1

Feb 132002

Trailblazer 4WD

  • miles
Engine stalled while in heavy rush hour traffic at 55 mph. Pulled to shoulder, attempted to restart engine. Every time we tried to start car, fuel pump engaged and gas sprayed under vehicle...creating a large puddle of fuel.

- Washington, DC, USA

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