There are 10 owner-reported fuel system complaints for the 2005 Chevrolet Suburbanin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
AFTER RUNNING VEHICLE, GAS RUNS DOWN SIDES FROM TOP OF FUEL TANK, AND DRIPS UNDER VEHICLE. CONTINUES TO DRIP IF CAR IDLES. STOPS IF CAR IS SHUT OFF. STRONG SMELL OF FUEL AFTER DRIVING VEHICLE
I NOTICED A GASOLINE LEAK IN MY DRIVEWAY COMING FROM UNDER FROM UNDER THE 2005 SUBURBAN. THE LEAK WAS ALMOST IN THE CENTER OF THE VEHICLE. I DROVE THE VEHICLE TO THE DEALERSHIP TO GET THE GASOLINE LEAK REPAIRED. I WAS BILLED $2,230 TO REPAIR THE GASOLINE LEAK. I WAS GIVEN THE FOLLOWING DESCRIPTION ON THE INVOICE. "TESTED FOR FUEL LEAK FOUND SENDING UNIT & ALL FUEL LINES LEAKING ...". I WAS TOLD THAT THE ENTIRE FUEL LINE SYSTEM HAD TO BE REPLACED DUE TO CORROSION ON THE UNDERSIDE OF THE VEHICLE. I GOOGLED THE CORROSION PROBLEM FOR CHEVROLET SUBURBAN'S AND READ SEVERAL INSTANCES OF BRAKES FAILING ON GM VEHICLES DUE TO CORROSION. THE BRAKE FAILURES THAT I READ ABOUT WERE THE RESULT OF CORRODED BRAKE LINES. TO ME THE CORROSION PROBLEM IS A VERY SERIOUS SAFETY ISSUE, ESPECIALLY WHEN YOU COMBINE THE FUEL LINES AND BRAKE LINES INTO THE PROBLEM. I ASKED THE SERVICE TECH ABOUT HOW LONG THE NEW FUEL LINES WOULD LAST. HE TOLD ME ABOUT SIX OR SEVEN YEARS. I ASKED IF THEY USED STAINLESS STEEL FUEL LINES, AND WAS TOLD "NO". SINCE THIS APPEARS TO BE A DESIGN FLAW, I FEEL THAT GENERAL MOTORS SHOULD PUT OUT A NOTICE TO THEIR CUSTOMERS, OR AT THE VERY LEAST HELP WITH THE COST OF THE REPAIRS. HOW CAN I LET MY FAMILY, OR ANYONE ELSE, RIDE IN MY 2005 SUBURBAN WITH ONLY 125,000 MILES AND A CORROSION PROBLEM? WHILE DRIVING ALL I WOULD BE THINKING ABOUT IS THAT THE BRAKES COULD FAIL AT ANY MOMENT, OR SOMETHING WOULD FALL OFF THE VEHICLE DUE TO THE CORROSION PROBLEM. IT'S TIME FOR GENERAL MOTORS TO STEP UP AND TAKE RESPONSIBILITY FOR THE CORROSION PROBLEM. *TR
GAS SMELL WHEN IDLING....TOOK TO DEALER AND THEY FOUND THE (FLEXIBLE) FUEL LINE LEAKING. THEY SHOWED ME THE PROBLEM AND IT SURE LOOKED LIKE THE LINES WERE CROSSED WHEN THEY WERE INSTALLED, EVEN THE MECHANIC SAID SOMETHING TO THAT NATURE, BUT I WILL GUARANTEE YOU HE WOULD NEVER ADMIT THAT......IT IS GOING TO COST ME $651.00 TO HAVE JUST ONE LINE REPLACED............THE LINE WORE A HOLE THRU IT WHERE THE LINES WERE CROSSED AND RUBBING ON EACH OTHER. *TR
MY VEHICLE WAS MANUFACTURED WITH A DEFECTIVE FUEL PUMP. I HAVE HAD NOTHING BUT PROBLEMS WITH THE FUEL GAUGE AND DELAYED STARTS. I CHANGED THE PUMP AND NOTICED THE ORIGINAL PUMP WAS MISSING A SPRING ON ONE OF THE PUSH RODS. THE WEAR AND TEAR MADE THE PUMP HANG. I HAVE THE PUMP AND PHOTOS TO DELIVER. THIS PUMP IS A FLEX FUEL PUMP. THERE ARE SO MANY POSTS ON THIS DELAYED START ISSUE. I HAVE RECENTLY POSTED THE CAUSE OF MY ISSUE. I NOTICED THE DEFECT IMMEDIATELY BECAUSE I PERFORMED THE REPAIR AND NOT THE DEALER. THEY WERE QUICK TO OFFER ME A QUOTE FOR OVER A THOUSAND DOLLARS TO REPLACE A DEFECTIVE PART. *TR
SMELLED GAS IN GARAGE AND MOVED VEHICLE OUTSIDE GARAGE TO INVESTIGATE. FOUND PUDDLE OF GAS ON GARAGE FLOOR WHERE VEHICLE HAD BEEN PARKED. CRAWLED UNDER VEHICLE AND FOUND TWO BRAIDED FUEL LINES CROSSING EACH OTHER AND RESTING ON ONE ANOTHER. THEY HAD WORN A HOLE IN THE BRAIDED FUEL LINE AND WAS LEAKING A SUBSTANTIAL AMOUNT OF FUEL. TOOK TO LOCAL REPAIR SHOP FOR REPAIR. MECHANIC HAD TO CUSTOM REBUILD FUEL LINE TO AVOID CRISS-CROSS ROUTE ORIGINALLY INSTALLED. MECHANIC VERY CONCERNED WITH EXISTING DESIGN - PRESSURIZED BRAIDED FUEL LINE WAS SPEWING FUEL BENEATH VEHICLE. THIS APPEARS TO BE A COMMON PROBLEM AS A QUICK SEARCH ON HTTP://WWW.ABOUTAUTOMOBILE.COM/ UNDER "CONSUMER COMPLAINTS" FINDS QUITE A FEW RELATED INSTANCES WITH BOTH THE 2005 AVALANCHES AND SUBURBANS. REFERENCE COMPLAINT NUMBERS: 10465537, 10402272, 10384217, 10275857, 10417685, 10373464, 10401501. I DIDN'T SEARCH OTHER MODEL YEARS. *TR
GAS LEAKED FROM FUEL LINES WHICH WERE CROSSED WHEN VEHICLE WAS BUILT AS RESULT RUBBING OCCURRED AND LINES RUPTURED CAUSING FUEL TO LEAK OUT. WENT TO DEALER FIRST TIME THIS HAPPENED AND WOULDN'T ADMIT THIS IS WHY THE LEAK HAPPENED ORIGINALLY. HUSBAND HAS PATCHED A FEW TIMES NOW WHILE WE WAIT FOR NEW GAS LINES TO COME FROM GM BECAUS WE REFUSE TO GO TO DEALER AND USE OUR OWN GARAGE. HOPE NEW LAW GOES INTO EFFECT REGARDING THAT AS WELL. VERY DISSATISFIED AND IT LOOKS LIKE THERE WAS ANOTHER COMPLAINT ABOUT THIS. WILL NOT BUY CHEVY EVER AGAIN. TT
TL*THE CONTACT OWNS A 2005 CHEVROLET SUBURBAN 1500. WHILE THE CONTACT WAS DRIVING SHE SMELLED FUEL. WHEN SHE REACHED HER DESTINATION, SHE NOTICED THAT FUEL WAS SPILLING OUTSIDE THE VEHICLE ONTO THE GROUND. THIRTY SECONDS AFTER TURNING THE VEHICLE OFF, THE FUEL STOPPED LEAKING. THE VEHICLE WAS TAKEN TO TWO REPAIRS SHOPS WHERE THE CONTACT WAS INFORMED THAT THE FUEL PRESSURE LINE FROM THE TANK TO THE CROSSOVER AND THE MOTOR HAD RUBBED TOGETHER WHICH CAUSED THE FAILURE TO OCCUR. THE VEHICLE WAS NOT REPAIRED. THE CONTACT CALLED THE MANUFACTURER WHO ADVISED HER TO REPORT THE PROBLEM TO NHTSA. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 140,000.
TL*THE CONTACT OWNS A 2005 CHEVROLET SUBURBAN. THE CONTACT STATED THAT WHEN SHE WALKED AROUND THE VEHICLE HE SMELLED GASOLINE AND COULDN'T TELL WHERE IT WAS COMING FROM, BUT NOTICED THAT THERE WAS A LEAK UNDERNEATH THE VEHICLE. THE VEHICLE WAS INSPECTED BY A DEALER WHO INFORMED THE CONTACT THAT THE ODOR CAME FROM A FRACTURE IN THE FUEL LINES. THE MECHANIC ADVISED THE CONTACT TO LEAVE HIS VEHICLE BECAUSE DRIVING THE VEHICLE WAS CAUSING THE FUEL LINES TO RUB TOGETHER. THE FUEL LINES WERE REPAIRED FROM THE FRONT AND REAR OF THE VEHICLE. THE FAILURE MILEAGE WAS APPROXIMATELY 70,000. UPDATED 5/2/11 *CN UPDATED 05/16/11
SMELLED FUEL LOOKED UNDER VEHICLE AND FUEL WAS SPRAYING OUT OF FUEL HOSE. IMMEDIATELY DROVE TO DEALER SERVICE DEPARTMENT TO BE LOOKED AT. ON THE WAY THE VEHICLE LOST ALMOST ALL REMAINING FUEL. DEALER IS REPLACING PARTS AT A GREAT EXPENSE. *TR
LAST WEEK, I FILLED UP MY GAS TANK AS USUAL. WHEN I WENT TO PULL OFF, THE GAS LIGHT FAILED TO GO OFF, THE GAS NEEDLE DID NOT MOVE AND THE BELL TO INDICATE THAT THE TANK WAS EMPTY WENT OFF. THE DEALER STATED THAT IT'S MY FUEL SENDING UNIT AND THAT HE'S SEEN SEVERAL OF THESE DEFECT LATELY...AND THAT I SHOULD CHECK FOR A RECALL. SINCE, I'VE HAD TO MONITOR WHEN I GAS UP AND HOW FAR I DRIVE...WHICH IS NOT ONLY FRUSTRATING, IT'S SCARY! THE NEEDLE NOW FLOATS FROM FULL TO EMPTY AND EVERYWHERE IN BETWEEN, BUT FOR THE MOST PART, IT RESTS ON E. VEHICLE IN QUESTION IS 2005 CHEVROLET TRAILBLAZER...THIS MODEL IS NOT GIVEN AS AN OPTION IN LATER SCREEN WHERE I ENTERED "SUBURBAN". I OWN A CHEVY TRAILBLAZER. THANK YOU *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026