Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.

CarComplaints.com 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.

10.0

really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
4,160 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 engine problems

engine problem

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2002 Chevrolet Trailblazer Owner Comments

problem #13

Jun 292003

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 18,500 miles

A D V E R T I S E M E N T S

Engine knock and rattle on cold start, worsens when loaded (in gear). After several minutes, knocking diminishes. Coincides with intermittent cold engine stall with no ses light set.

- Linden, MI, USA

problem #12

Jun 282003

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 18,500 miles
Engine stalls after start regardless of transmission gear selected. Will restart, but is stalling after backing out into a major local raod with heavy traffic, posing a rear end collision risk.

- Linden, MI, USA

problem #11

Dec 302002

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 5,400 miles
2002 Chevy Trailblazer- while traveling on I-76 in philadelphia, pa at approximately 55 mhp the engine in my Trailblazer began to make a loud noise, lost power & shut off. The vehicle had approximately 5,400 miles on it at the time. Fortunately, I was somehow able to make it off the highway without incident. The outcome of the problem was engine failure, a liner within the engine came loose & caused piston failure. The vehicle had to be towed & the engine replaced.

- Allentown, PA, USA

problem #10

Nov 282002

Trailblazer 4WD 6-cyl

  • Automatic transmission
  • 11,681 miles

A D V E R T I S E M E N T S

I own a 2002 Chevrolet Trailblazer ls with approximately 11,000 miles which had an engine failure on thanksgiving 2002. Entering and accelerating to approximately 60 mph on highway in about 25 degree temperature and engine service light appeared followed by reduced engine power light and then engine stopped running and could not be restarted. Dealer advised me that number 4 cyclinder cracked. They further advised me that GM is aware of a manufacturing defect in some Trailblazer engines that was caused by a miscalibration of the machine used to manufacture the engine. GM replaced my engine at no cost to me under original warranty. This sudden engine failure could have resulted in an accident and possible personal injury if I had not been able to roll the vehicle to the breakdown lane safely. From NHTSA web site.

- Plymouth, MA, USA

problem #9

Oct 012002

Trailblazer

  • miles
Upon starting vehicle consumer noticed the service engine soon light illuminated. Consumer stated took to dealer and dealer replaced the gas tank.

- Jackson, GA, USA

problem #8

Apr 132002

Trailblazer 4WD

  • Automatic transmission
  • miles
The consumers engine failed on several occasions. One incident caused another driver to crash into a guard rail in order to avoid hitting the consumer, the engine coil seems to be the problem.

- Hayesville, NC, USA

problem #7

May 232002

Trailblazer 4WD

  • miles

A D V E R T I S E M E N T S

In addition, warning bell continue to go off without warning lights.

- Dumont, NJ, USA

problem #6

Aug 162002

Trailblazer 4WD

  • Automatic transmission
  • miles
The consumer states that while driving at 45mph, the vehicle stalled and died out with out warning resulting in a collision. The dealer has inspected the vehicle three times prior to this incident. Nlm

- Hazeville, NC, USA

problem #5

Jun 162002

Trailblazer

  • miles
On two separate occasions vehicle cut off while drivng. Dealer and manufacturer have been notified. Feel free to provide any further information.

- Mount Carroll, IL, USA

problem #4

Jun 082002

Trailblazer

  • Automatic transmission
  • miles
While driving 30 mph vehicle stalled/ lost braking ability, and all oil leaked out from vehicle. Vehicle at dealership at this time.

- Colorado Springs, CO, USA

problem #3

Feb 152002

Trailblazer

  • miles

A D V E R T I S E M E N T S

While driving vehicle would stall intermittently at any speed, vehicle been to the dealer on three occasions, and the problem reoccurring. Feel free to provide any further information.

- Oakley, CA, USA

problem #2

Mar 182002

(reported on)

Trailblazer

  • miles
While driving, vehicle completely stalls without warning. Cause unknown dealer contacted.

- Garland, TX, USA

problem #1

Feb 242002

Trailblazer 4WD

  • Automatic transmission
  • miles
While traveling at 70 mph, driver heard a ticking noise, suddenly engine died. Driver had to force vehicle to the side of the road. It was discovered that the engine had blown, the 4WD has also been repaired twice and the front brakes shake when applied, mileage to date 12,000-8/02.

- Syracuse, NY, USA

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