I NOTICED THE FIRST TIME THERE WAS AN ISSUE WITH MY GAS GAUGE WHEN I WAS SITTING AT THE BANK DRIVE THRU AND IT DINGED AT ME THAT I NEEDED GAS. I THOUGHT IT ODD, BECAUSE I THOUGHT I HAD JUST FILLED UP. I WENT TO FILL UP AND IT ONLY COST $20, SO THEN I KNEW SOMETHING WAS WRONG. GAS GAUGE STAYED AT 1/2 TANK REGARDLESS OF FULL OR EMPTY, THEN GOT STUCK AT 1/4 TANK, NOW STAYS ON EMPTY AT ALL TIMES. …
2007 Chevrolet Trailblazer fuel system problems
moderate 250 complaints filed with NHTSA · avg repair $1,200
Complaints
250
Recalls
0
Crashes
0
Avg fix
$1,200
What owners are reporting 7 most recent
TL* THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE FUEL GAUGE WAS STUCK ON ZERO AND HE WAS UNABLE TO DETERMINE HOW MUCH FUEL WAS IN THE VEHICLE. ON ONE OCCASION WHILE DRIVING 65 MPH, THE VEHICLE RAN OUT OF FUEL. THE VEHICLE WAS TAKEN TO THE DEALER BUT NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VIN WAS UNAVAILABLE. THE FAILURE AND THE CURRENT MIL…
TL* THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. THE CONTACT WAS DRIVING APPROXIMATELY 45 MPH AND NOTICED THAT THE FUEL GAUGE FLUCTUATED AND FAILED TO REGISTER AN ACCURATE READING. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE CONSTANT MALFUNCTION. THE FAILURE MILEAGE WAS APPROXIMATELY 52,000. UPDATED 02/03/12*LJ
THE FIRST TIME I NOTICED THERE WAS A PROBLEM WITH THE FUEL GAUGE SENSOR IN MY '07 TRAILBLAZER, I HAD ABOUT 1/3 OF A TANK OF GAS WHEN I PARKED AND TURNED THE ENGINE OFF TO GO INTO A STORE. WHEN I STARTED THE ENGINE AGAIN, THE FUEL GAUGE WENT TO EMPTY AND THE LOW-FUEL LIGHT CAME ON. I WENT TO FILL THE TANK AND ONLY NEEDED ABOUT 11 GALLONS, WHICH IS WHEN I CONFIRMED THE GAUGE WAS WRONG. THE GAUGE …
THE FUEL TANK SENDER STOPS WORKING WHEN THE FUEL LEVEL IN THE TANK REACHES HALF FULL. IT OCCURS EVERY TIME THE TANK REACHES HALF FULL. *TR
TL*THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. WHILE DRIVING AT ANY SPEED, THE CONTACT NOTICED THAT THE FUEL GAUGE WOULD INDICATE INACCURATE FUEL LEVELS. THE DEALER WAS INFORMED AND THEY ADVISED THE CONTACT TO BRING THE VEHICLE IN FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOTIFIED AND THE CONTACT WAS AWAITING A RESPONSE. THE VEHICLE WAS NOT REPAIRED. THE CURRENT MILEAGE WAS APPROXIMATELY 24,…
2007 TRAILBLAZER GAS LIGHT COMES ON WHEN FUEL TANK IS FULL. THIS NEEDS TO BE A RECALL DUE TO FACT VEHICLE COULD FAIL ON ROAD IN FREEZING CONDITIONS. LIVES COULD BE IN DANGER FOR FAULTY READING OR FOR ENGINE FAILURE DUE TO IMPROPER SENSOR WORKING. APPARENTLY THIS HAS HAPPENED TO MANY PEOPLE WITH EVEN 2005-2006 MODELS. IT IS NOT COVERED UNDER WARRANTY. THERE NEEDS TO BE SOMETHING DONE ABOUT THIS FOR…
Common questions
How serious is the fuel system problem on the 2007 Chevrolet Trailblazer?
It's a documented issue but not catastrophic. 250 complaints have been filed. Repairs average $1,200 and most owners catch it before it causes a breakdown.
At what mileage does the fuel system typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $1,200 for fuel system repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to fuel system?
No active recalls currently cover fuel system issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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