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CarComplaints.com 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.

7.8

pretty bad
Typical Repair Cost:
$420
Average Mileage:
56,650 miles
Total Complaints:
74 complaints

Most Common Solutions:

  1. not sure (34 reports)
  2. replace fuel sensor (32 reports)
  3. replace the entire fuel module (7 reports)
  4. replace fuel descending unit (1 reports)
2007 Chevrolet Trailblazer fuel system problems

fuel system problem

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2007 Chevrolet Trailblazer Owner Comments (Page 2 of 4)

« Read the previous 20 complaints

problem #54

Oct 122010

Trailblazer LT 3.2L V6

  • Automatic transmission
  • 75,345 miles

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

Gas gauge fluctuated then eventually didn't work at all. Now the gas gauge empty light comes on constant. i have to use the amount of fuel gauge to make sure I don't run out of gas. this is a chronic problem with this model but GM doesn't want to recall because they are charging 975.00 to fix it. Recently got a letter from GM stating they will pay half the cost to fix it. Why? so the owners will bring it in? No rather not.

- Tedina H., Boardman, OH, USA

problem #53

Mar 252011

Trailblazer LS V6

  • Automatic transmission
  • 70,000 miles

Have called GM and chevrolet dealership. GM says to pay the 100.00 dianostic fee and then call them back. Chevrolet dealership sees this problem all the time. Will cost about 450.00 to fix. Interesting: GM told me they have no known problems with the fuel gauge. I told het to check the NHTSA website.

- Cindy G., McDonough, GA, USA

problem #52

Jan 102010

Trailblazer ES 3.2L V6

  • Automatic transmission
  • 65,000 miles

This problem has left me sitting on the side of the road at least 6 times.As much money as was spent on this vehicle,and it being a 2007 you would think a recall would be a nobrainer.Using average mpg is noneffective because use of the air conditioner and idling in traffic is unacceptable for a car that is 4 years old,not to mention inaccurate.The trailblazer scored poorly in 2007 consumer digest for electrical problems.Look for yourself.The nhtsa fell all over themselves over toyotas problem with sticking accelerators which they never really found out the problem.All I(we) ask for is a recall to fix a problem that is going to get someone ran over.gm is in bed with the federal gvt. of which the national highway transportation safety adm. is a branch of.They are the ones that can force the manufacturers into a recall situation,not gm.

- scotts firearms, Seymour, TN, US

problem #51

Apr 042011

Trailblazer 1LT V6

  • Automatic transmission
  • 38,460 miles

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

Shame G M for selling all these Trail Blazers and other vehicles with this crap fuel monitor that cannot stand up to blended gas that our uncle Sam says to use to save oil.

now your dealer is charging me $102.00 on July 5 2011 to tell me the fuel gauge is a piece of crap and is not working like it should, and that I will have to shell out $600.00 to get another just like it, I have been a G M customer since I bought my first G M vehicle a truck in 1959, I am a retired G M worker with 33 yrs. of service.

- tommym, South Lebanon, OH, USA

problem #50

May 012011

Trailblazer LS 4.2L V6

  • Automatic transmission
  • 46,000 miles

It is annoying to have to rely on the trip odometer every 140 miles to know you REALLY need gas!!!

- Dolly T., Mount Pleasant, PA, USA

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problem #49

Oct 152010

Trailblazer LT 3.8L V6

  • Automatic transmission
  • 48,500 miles

Much like everyone else on here I have a 2007 Trailblazer that the gas gauge reads empty all the time... I too have called the GM complaint line on two seperate occasions.. The most recent being today after running out of gas yesterday because of a miscalculation. They must have a script there that they read off of for this complaint because the person there responded word for word what I was told back in November..

Im sorry GM.. I am not going to take my car into a Chevy dealership and give them 100 dollars so that they can tell me its the fuel sensor attached to the fuel pump when we all know that that is what it is. Im also not going to pay 100 dollars on a hope and a prayer that Chevy will pay for the repair, because we all know you won't.. All I can say is you better hope to god that my wife and kids dont run out of gas and god forbid something happen to them because of this issue because I can promise you that there isnt a corporate attorney that you can hire that will be good enough to protect you from the ruin that I will cause you.. FIX YOUR PIECES OF CRAP.. I and every person I ever talk to will never buy another GM product for as long as I live..

- Chris H., Overland Park, KS, USA

problem #48

Dec 222010

Trailblazer LS

  • Automatic transmission
  • 64,000 miles

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

Around Christmas time my gas gauge kept shooting from full to empty. When I would put gas in it, it would go to full only briefly then go straight back to empty. Now it just stays on empty and I never know how much gas I have. I constintantly worry about running out on my way to or from work, or while I have my 9 month old granddaughter with me. I live in Ohio and it gets pretty cold here. I feel running out of gas is unsafe because it poses a risk on my life as well as any others in my vehicle! Pulling off the road on a busy highway poses the risk of someone not paying attention and slamming into you, pulling over on a rural road poses all kinds of safety issues.

I have called the GM phone number 1-866-790-5700 and talked to a few people now. I took it to our local Chevy place and received an estimate for $600. I paid $53 for the diagnostic. The man at GM said for being the "age" of the TB, he does not think GM will help me pay for it!!! WHAT???? 4 years old, I purchased it brand new.....cost me $20,000 and they will not cover something that by looking at all the complaints on line surely constitutes a recall.

We currently have 5 GM vehichles and this will be my last! I cannot believe they want me to keep this thing, pay out another $600 (due to the age of my trailblazer) and be happy with it. I am seriously thinking of trading it in at this point and purchasing a FORD Fusion. HUGE difference of course, but hey, at least their logos will stay on and look nice! Chevy, you should be ashamed. With the rate you're going, you will be out of business one day and it will be noones fault but your own!

- Dawn K., Mansfield, OH, USA

problem #47

Nov 012010

Trailblazer

  • Automatic transmission
  • 40,000 miles

I got rid of this thing. It had nothing but problems since the first day I bought it. Never again. I got rid of it and bought a Ford Edge. I love it.

- nsroka, Newark, DE, USA

problem #46

Mar 042009

Trailblazer LT V6

  • Automatic transmission
  • 20,000 miles

I'm not sure what our mileage & exact year that our fuel gauge was stuck on full. We checked with our dealership and there was no re-call. Wasn't fun running out of gas on the interstate trying to get home to see the Vikings. The dog chasing Steve to the farm home didn't help either. We have to watch the odometer to try to know how much gas may be in the tank. It is a pain in the left earlobe.

- alexsteve, Mason City, IA, USA

problem #45

Sep 062010

Trailblazer LT

  • Automatic transmission
  • 62,000 miles

This problem is not unique. Almost everyone i know that owns a trailblazer has this problem. The repair shop that i go to keeps 10 or so on hand,because of this common repair....This is an obvious recall...come on GM...fess up...How many more people are going to be stranded or injured ????? PLEASE.....

- olivia7, North Tonawanda, NY, USA

problem #44

Dec 012009

Trailblazer LT V6

  • Automatic transmission
  • 45,000 miles

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

This gas gauge problem is very aggravating since it was a relatively new vehicle when the problem started. But, I was not going to spend $350-$400 to fix a problem that should never have happened that soon. So, I have to reset the trip every time I fill up and I have run out of gas twice in the past 18 months. To make matters worse, my wife has a 2001 Olds Aurora and her car has the same problem, wo we have to reset the trip on her car also. Two GM products, two gas gauge problems. It seems like all the problems we have with GM cars are electrical and expensive to fix for what the problem is. These two and our other three electrical problems would bleed us to death if we fixed them all.

- alexsteve, Mason City, IA, USA

problem #43

Nov 092010

Trailblazer EX

  • Automatic transmission
  • 50,000 miles

I spoke with a couple people at an auto part store and they had their ideas of what the problem was. I went to an mechanic shop to see what a diagnostics would cost me, and he said about $140. He then told me he thought there was a recall on a chip in the dash on Trailblazers between 2003-2007. I called the local Chevy dealership and he told me there was no recall for this problem.

The first time this was an issue, I ran out of gas in a convenient location, if there is such a thing. I was able to call a relative and they brought me a gas can. Since, my gas gauge starts to fluctuate at about a 1/2 tank. It used to show the real gas level when i started it up and as soon as I started to drive it would drop until my light came on. Now, my gas gauge shows empty when I start it up.

This seems to be a very common problem and I'm going to search for someone at GM to email and complain to. I have had nothing but problems with my Trailblazer since the first night I brought it home. It was one year old and had 19k miles. I'll never own one again!

- Jason W., Shelton, WA, USA

problem #42

Nov 152010

Trailblazer LS V6

  • Automatic transmission
  • 29,800 miles

I DID HAVE A 2005 TRAILBLAZER WITH THE SAME PROBLEM I TRADE IT IN FOR THE 2007 HOPING TO GET RUDE OF THE PROBLEM BUT I AM HAVING THE SAME PROBLEM WITH THIS VEHICLE. I'M SO MAD THAT IT IS NO RECALL ON THESE VEHICLES I HAVE MY TRUCK I WILL NEVER BUY ANOTHER TRAILBLAZER AGAIN OR A CHEVROLET CAR OR TRUCK. I ONLY HAVE BAD THINGS TO SAY ABOUT THIS COMPANY. I HAVE A DISABILITY AND CAN'T AFFORD TO DO ALOT OF REPAIRS TO MY VEHICLE. WANT CAN WE DO TO GET HELP.

SARAH

- Sarah P., Hephzibah, GA, USA

problem #41

Jul 012010

Trailblazer LS V6

  • Manual transmission
  • 20,000 miles

Fuel sender is gone. Gas gauge reads empty with light on constantly even when filled up. So To get it fixed it's gonna cost $600 to replace. Trailblazers with this problem have to get a module kit with a new tank, pump and floater. So this isn"t a recall yet because people who complain on websites aren't calling GM. So here's Gm's number to complain. 1-866-790-5600. PLEASE call them with this complaint that us trailblazer owners are having. It will hopefully soon become a recall and we can this this fixed through Gm and not our wallets.

- Tiffany P., Versailles, PA, USA

problem #40

Jul 012010

Trailblazer

  • Automatic transmission
  • 32,000 miles

Guess what.... same problem. We bought 2 Trailblazers one in 2006, and 2007. First, the 2006 gas gauge was broken, and within months the 2007 one went. Come on now, they need to recall these cars.... will not buy another one until they do!!!

- jennifer54321, Newton, NJ, USA

problem #39

Oct 022010

Trailblazer LS V6

  • Automatic transmission
  • 71,000 miles

Service Advisor at dealership was made aware of the issue when symptoms 1st started occurring with gauge only registering half full at fill up, and low fuel warning light on at the same time. "We've seen a lot of these with this model and it is usually a failed sensor replacement needed inside the fuel tank. Cost to repair is over 4 hours plus part". Used emergency roadside fuel service twice when I estimated the mileage from the odometer wrongly & ran out of fuel (vehicle mileage has deteriorated 10% per 8K miles to an average now barely over 14 mpg; never been higher than 18.7mpg highway, 13.7mpg city). Now, persistent light, bell warning every few minutes, even immediately after fill up's. I need documentation from other Trailblazer owners to remit a post warranty claim.

- Mark P., Las Cruces, NM, USA

problem #38

Nov 222010

Trailblazer

  • Automatic transmission
  • 51,000 miles

Bought 2007 trailblazer almost new with only 20000 miles on it. NEVER had any problem with it until now! The fuel light comes on even with a full tank. This should be a recall since so many other year models have had the same problem. I will try to contact Chevrolet about this but doubt that it will help if everyone else gets nowhere with it!!!!!!!! WTF!!!!!!

- rsveen225, Williston, ND, USA

problem #37

Oct 062010

Trailblazer

  • Automatic transmission
  • 21,000 miles

My truck was 6 days out of warranty and the fuel gauge broke. Only 21,000 miles on the truck. GM won't help! They want me to pay up front for diagnostic test and then they will decide if they are going to cover it. I can't afford to fix the problem, so I am certainly not spending 102.00 with no certainty that the problem will be corrected by them. Best part is, they are running commercials boasting their integrity and customer satisfaction.

- Helene B., Norwood, PA, USA

problem #36

Oct 272010

Trailblazer

  • Automatic transmission
  • 52,000 miles

Unbelievable! I took this in to the Chevy dealer, they knew exactly what the problem was, but said this is not a common problem. I had it fixed at $600. A lady who also owns a 2007 Trailblazer approached my wife in the parking lot tonight to ask her if she had problems with her gas gauge because she was having this problem. Then I look at the internet and see this is a wide spread problem. SHAME ON YOU CHEVROLET!!! I have bought Chevy's in the past and I can tell you, I HAVE BOUGHT MY LAST CHEVY!!! This is a disgrace when this is such a widespread problem and Chevy dealers will not acknowledge it. Also tire pressure light an ongoing problem. I take excellent care of all my vehicles having all regular maint. I am done with CHEVYS! When a dealer is and manufacturer is dishonest with me, I will not buy their product again......ever!

- iubelt, Washoe Valley, NV, USA

problem #35

Aug 122010

Trailblazer

  • 53,000 miles

The Gas light is always on empty even after filling up

- shaughnessy, Nirthlake, IL, USA

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