2002 Chevrolet Trailblazer Fuel System, Gasoline: Delivery: Fuel Pump Problems (2022)

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Chevrolet » Trailblazer » 2002

2002 Chevrolet Trailblazer Fuel System, Gasoline: Delivery: Fuel Pump Problems (1)

NHTSA — Fuel System, Gasoline: Delivery: Fuel Pump Problems


really awful

Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
56,531 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

problem #16

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

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problem #15

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

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(Video) 2006 trailblazer: Found the hard starting issue! Fuel Pump Check Valve Fun.

problem #14

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

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problem #13

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

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problem #12

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 #11

Sep 012007

(Video) Chevy Trailblazer - testing fuel pressure 2002 -2004 4.2 I6

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

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problem #10

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

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problem #9

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

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problem #8

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

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(Video) How To Replace Fuel Pump 2001-2008 Chevy Trailblazer

problem #7

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

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problem #6

Apr 292007


  • miles

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

- Rochester, NY, USA

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problem #5

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

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problem #4

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

(Video) How to Install Fuel Pump Assembly E3549M in a 2002 - 2004 Chevrolet Trailblazer

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problem #3

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

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problem #2

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

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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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What causes a fuel delivery problem? ›

The fuel filter removes this sediment and other dirt, grime, and impurities that can make their way into the gasoline. This protects the engine. A fuel filter will clog over time with the very contaminants it removes from the gasoline and this causes fuel delivery problems.

How do you diagnose a fuel delivery problem? ›

A fuel system should be carefully tested for pressure, volume, and electrical integrity before condemning the fuel pump. Often the first step in diagnosing a faulty fuel system is to simply listen. Turn the ignition key to the run position and carefully listen for a slight humming sound coming from the fuel tank.

What sensor controls the fuel pump? ›

The fuel tank pressure sensor is part of the fuel pump assembly and is mounted on top of the tank or inside the tank. It's part of the evaporative emissions system (commonly referred to as “EVAP”) and reads pressure in the fuel system to detect evaporative leaks, such as a loose or faulty gas cap.

Which component determines the fuel pump delivery pressure? ›

Fuel pressure regulator is an important component responsible for keeping a check on the pressure of the fuel flowing through the system. It ensures proper supply of fuel to the injectors by building enough pressure in the fuel rails.


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