Skip to content
Fuel systemPart report

2004 Chevrolet Trailblazer EXT Fuel system Problems

Complaints
46about this part
Share
18%of 261 total for the year
Median mileage
81,500miles
Trend
StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.

NHTSA recorded 46 complaints about the fuel system of the 2004 Chevrolet Trailblazer EXT, 18% of the 261 complaints for this model year. Where a mileage was given, the median is 81,500 miles.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I own a 2004 chevy trailblazer. I am having constant problems with the gas gauge indicating that either there is less gas then actual, or more gas then actual. I know there is an investigation going on with these vehicles but only for the years 2005-2007, mine is a 2004. This investigation should also include this year since the same problems are happening.”

NHTSA complaint #10402557, filed 2011-05, 60,000 miles

“Not sure what to file this under, so I put it under fuel system, gasoline. Same day I was having problems with speedometer I was having problems with the gas gage. The arrow would go way past full, when I knew I only had about half a tank. The gas gage has been acting up ever since, I just have to keep track of my mileage to know when to fill it up. Have not had the problem fixed yet.”

NHTSA complaint #10393757, filed 2011-03, 90,000 miles

“The fuel tank is leaking. The fill tube separated from the tank and is leaking fuel onto the tank. There is a strong fuel odor as well. Called Chevrolet they stated that vehicles are only being repaired for this issue in northern, eastern and midwestern states. Stated they will not fix my issue though it has the same issues covered under the special coverage, due to my geographic location.”

NHTSA complaint #10405954, filed 2011-06, 113,000 miles

“I was driving down the road when I ran out of gas. It still showed over 100 miles left on the gauge. That was about 3 months after I purchased the vehicle. About two months later, I had the same problem. I started keeping the gas on 3/4 of a tank at all times to make sure there was fuel in it. The problem kept happening. Today, it was on 200+ miles and I ran out. This is ridiculous! Do I really have to keep track of how many miles I put on it so I know when I need to refill?”

NHTSA complaint #10477964, filed 2012-09, 52,582 miles

“My vehicle is currently parked in my family's garage, as I am experiencing a strong gas smell. There is no visible leak, but I do not dare to transport my children in the vehicle until I can find what the gas smell is originating from.”

NHTSA complaint #10441453, filed 2011-12, 144,000 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
200612968%
20044618%
20038928%
20022323%

Other parts of the 2004 Chevrolet Trailblazer EXT

Electrical system
145 complaintsTransmission and drivetrain
17 complaintsEngine cooling
16 complaintsExterior lighting
13 complaintsEquipment
9 complaintsVehicle speed control
9 complaintsSteering
8 complaintsVisibility (wipers, defrost, mirrors)
8 complaintsAir bags
7 complaintsBody and structure
7 complaintsEngine
5 complaintsLatches, locks and linkages
3 complaints

← All problems reported for the 2004 Chevrolet Trailblazer EXT

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology