Print this page Notes: The 2002-2007 Chevrolet Trailblazer is known for many things, but perhaps it is most famous for its faulty fuel gauge.

This gauge flip-flops more than a politician during election season. Some report that the gauge says "empty" after a fill-up, while others report the gauge says "full" when they're running on fumes. Either way, there's one thing everyone seems to agree on: the darn thing is just wrong.

Following hundreds of complaints and a few accidents allegedly caused by the malfunction, the National Highway Traffic Safety Administration (NHTSA) opened an investigation into the issue in May 2011. Unfortunately for frustrated owners, no recall has been announced.


really awful
Crashes / Fires:
2 / 1
Injuries / Deaths:
2 / 0
Average Mileage:
43,557 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.

2007 Chevrolet Trailblazer engine problems

engine problem

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2007 Chevrolet Trailblazer Owner Comments

problem #10

Jan 282015

Trailblazer 6-cyl

  • 105,000 miles


I was on my way to work at an ongoing traffic on the interstate and my 2007 Trailblazer security and engine lights came on. It started to slow down and the engine completely shuts off. This is a known issue and happens multiple times before, I took it to the dealership service department they said they fixed it and I was charged almost $300 dollars unfortunately it did not fix. This is the worst vehicle I've ever had quality of the vehicle is suck. I will never buy Chevrolet again!!!!

- Murfreesboro, TN, USA

problem #9

Mar 212014


  • 60,000 miles
My son in law was driving the car with my permission and while making a left turn the vehicle stalled; there was no steering or brakes. The steering wheel locked up during the turn and caused the vehicle to continue turning on it's own and I proceeded to hit a pole. The radio and lights were still on during this time, however, the engine shut off.

- West Hempstead, NY, USA

problem #8

Jul 112013


  • miles
My ac is malfunctioning and my fan clutch is out of whack. My brakes are squealing it is hard for me to stop. My engine sometimes stops. I need help with these issues and I have no more to pay for these issues plaguing me. Please help me fix my vehicle.

- Huntsvile, AL, USA

problem #7

Jul 172011

Trailblazer 8-cyl

  • 29,570 miles


The fuel gauge level indicator just went from "full" to "empty", it just went that fast. Minutes before it had just been filled at the gas station. When starting, the gauge rises then falls to empty. On occasions the warning message, "please tighten gas cap" comes on. Now months later, same problem; after contacting "GM" hotline, they still have not shown any concern. I keep track of miles driven since last fill-up and gas used, so I know when it is time to fill-up. I have read many same complaints, and I wonder why "GM" has not issued a recall. It is now 08/21/2012 and problem is still ongoing. Can you please help. Please. "GM" has on numerous occasions suggested that the wire harness on top of the gas tank needs to be replaced, to do so, requires a five (5) hour visit and they expect the customer to pay half the cost. Please help.

- Albany , GA, USA

problem #6

May 072012


  • 94,000 miles
The Trailblazer died when my wife and children was sitting at a red light and when she started it back the motor was making a loud knocking noise. She pulled it to the side of the road and called a tow truck and had it towed into a garage. The mechanic said that the engine was shot. There was no indication anything was wrong when it happened all the gauges were showing everything to be good there was no noise in engine or any warning lamps lit up on the dash. We had the oil changed just 2-3 weeks ago. We have only had the vehicle for 8 months. Also, the driver side window switch has been acting up when you press the switch to put down the window it will not go into automatic down.

- Corbin, KY, USA

problem #5

Aug 182010

Trailblazer 6-cyl

  • 45,000 miles
At 45,000 miles I have had to have the tierods replaced and there is still something wrong with the passenger side wheel assembly, but they can't seem to figure out what the squeak is. It could be a bearing I have been told, but they don't know without tearing it all down. 2nd is the power window on the drivers side is getting slower to come up and I can smell wires burning at times (although I am not sure if the 2 are related) I have also had to replace the "idler pulley" at 42,000 miles.....this seems ridiculous as it keeps turning out to be one thing after another"???"

- Traverse City, MI, USA

problem #4

Aug 242010

Trailblazer 6-cyl

  • miles


Gas gauge does not work. Reads empty even after vehicle is filled with fuel. Check engine is always on because of gauge problem.

- Santee, CA, USA

problem #3

May 182011


  • miles
I was starting to go up a hill at a speed of 56 mph and I swerved to miss a couple of skunks when the steering locked on the truck and I went into the ditch to the left and then rolled the truck three times. When the vehicle was purchased in Nov 2010 I noticed the SRS light was on and the dash light and his response was to bring it back for service after I made a payment, during the accident the airbags did not deploy and the towing company who came to get the truck they had to cut the battery out because they couldn't get the steering to unlock.

- Whitney Point, NY, USA

problem #2

Jul 142010


  • miles
Vehicle lights always on. Check engine! gas gauge paid 600 dollars to fix and still check engine light on due to emission problem. Car has 50000 miles and is a lemon..

- Indianapolis, IN, USA

problem #1

May 172010


  • 102,000 miles
I read about: GM recalling 1.4 million vehicles for fire hazard by peter valdes-dapena, senior writerjune 9, 2010: 10:03 am et. While driving to work on May 17, 2010, I heard a loud "pop" and I immediately pulled over and called aaa. Approximately 10 minutes later, my 3 year old Chevy Trailblazer had flames start shooting out of the hood. It was engulfed in flames soon thereafter. I thought it was steam, so if a NJ firefighter had not grabbed me out of the vehicle, I am not quite sure how this story would have ended...

- Toms River, NJ, USA

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