2006 GMC ENVOY DENALI XL Fuel System, Gasoline Problems

RAN OUT OF GAS WITH THE FUEL GAUGE READING HALF FULL (VEHICLE HAD APPROX 50K MILEAGE). AFTER PUTTING A COUPLE OF GALLONS IN THE TANK WENT TO THE GAS STATION AND FILLED THE TANK. WHEN THE VEHICLE WAS STARTED THE GAUGE BOUNCED TO FULL AND THEN TO EMPTY. IT BEGAN BOUNCING UP AND DOWN CONTINUOUSLY, SOMETIMES SETTLING AT HALF FULL OR AT EMPTY. IT CONTINUES TO DO THIS TODAY (9/16/13) BUT MOSTLY STAYS ON EMPTY WITH THE FUEL GAUGE LIGHT ON ALL THE TIME REGARDLESS OF HOW MUCH GAS IS IN THE TANK. WE NOW USE THE TRIP ODOMETER TO GAUGE THE DISTANCE WE TRAVEL SO WE KNOW WHEN TO REFUEL. WE WERE TOLD BY OUR DEALER THAT IT WAS THE FUEL SENSOR AND WOULD COST AROUND $600-$700 TO REPAIR. *TR

Mileage: 50,000

TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI XL. THE CONTACT STATED THAT THE VEHICLE FAILED TO ACCELERATE OVER 40 MPH. THE CONTACT ALSO STATED THAT THE ENGINE AND THE LOW FUEL WARNING LIGHTS ILLUMINATED ALTHOUGH THE FUEL LEVEL WAS AT MAX. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE CONTACT WAS INFORMED THAT THE THROTTLE BODY AND FUEL PUMP NEEDED TO BE REPLACED. THE FAILURE MILEAGE WAS 128,623 AND THE CURRENT MILEAGE WAS 138,182...UPDATED 04-03-13 *BF UPDATED 04/22/2013 *JS

Mileage: 128,623

IN FEBRUARY I WAS DRIVING HOME WITH MY 5 YEAR OLD DAUGHTER ON THE THRUWAY, WHEN SUDDENLY THE CAR STOPPED WORKING. I LUCKILY PULLED OVER TO THE SHOULDER BUT HAD TO WAIT THERE IN THE DARK, TERRIFIED THAT WE WOULD BE HIT FROM BEHIND, AS IT WAS DARK. IMAGINE MY SURPRISE WHEN I FOUND OUT THE CAR WAS SIMPLY OUT OF GAS! THE GAS GAUGE DID NOT READ EMPTY BUT THAT WAS THE PROBLEM!! SINCE THAT TIME I HAVE RUN OUT OF GAS SEVERAL MORE OCCASIONS, ONCE WITH 5 CHILDREN IN THE CAR AT NIGHT. GMC IS NOT ISSUING A RECALL AND IT NEEDS TO BE DONE NOW!! THIS IS A SAFETY ISSUE NOT ONLY FOR THE DRIVER OF THESE VEHICLES WITH THE FAULTY SENSOR, BUT OTHER DRIVERS ON THE ROAD ALSO. SOMETHING NEEDS TO BE DONE. *TR

Mileage: 43,000

WITH NO ADVANCE WARNING, THE FUEL GAUGE STARTED READING EMPTY IMMEDIATELY WHEN TANK WAS FILLED. POSSIBLY RELATED OR NOT, THE FLAP IN THE FUEL FILLER NECK DISAPPEARED ABOUT THE SAME TIME THE PROBLEM STARTED. ONCE THE PROBLEM BEGAN, THE FUEL LIGHT WOULD COME ON WHEN THE CAR WAS STARTED AND WOULD STAY ON CONSTANTLY. THE CHECK ENGINE LIGHT IS ALWAYS ON AS WELL. AS FUEL LEVEL DECREASED SOMETIMES THE GAUGE WOULD APPARENTLY READ CORRECTLY (E.G. BELOW 3/4 TANK). STOPPING OR STARTING SOMETIMES CAUSED THE GAUGE TO FLUCTUATE; OFTEN THE GAUGE GOES UP AND DOWN SEVERAL TIMES A MINUTE. OVER THE LAST EIGHT MONTHS THE CONDITION HAS WORSENED AND THE GAUGE OFTEN READS EMPTY, WITH OCCASIONAL SWINGS UP TO APPROXIMATELY CORRECT LEVEL (ESTIMATE BASED ON MILES DRIVEN SINCE FILLING TANK). HOWEVER, THE GAUGE NEVER WENT BELOW 1/8 TANK, EVEN THOUGH IT WAS LESS THAN TWO GALLONS FROM EMPTY IN A 24-GALLON TANK. *TR

Mileage: 44,000

I AM THE OWNER OF THE GMC ENVOY DENALI, 2006 MODEL VEHICLE. THE GAS TANK SENSOR AFTER A FILLUP BEGAN TO MALFUNCTION. SPECIFICALLY, THE TANK WAS FILLED, HOWEVER, THE GAS TANK FILL INDICATOR REMAINED ON EMPTY. THE FAILURE OF THE SENSOR HAS CAUSED THE "CHECK ENGINE" LIGHT TO COME ON AND REMAIN ON. *TR

Mileage: 60,000

2006 ENVOY DENALI CHECK ENGINE LIGHT CAME ON FUEL GAUGE STOPPED WORKING PROPERLY. DEALER SAYS IT IS THE SENDING UNIT. IF THIS IS COMMON SHOULDN'T THERE BE A RECALL. *TR

Mileage: 65,000

GMC ENVOY DENALI XL 2006 FUEL GAUGE ISSUE. 1ST INCIDENT - FUEL GAUGE SHOWED 1/4 TANK GAS AVAILABLE WHILE TRAVELING IN I-70 IL WHEN VEHICLE RAN OUT OF GAS WHILE TRAVELING AT 65MPH PASSING SEMI TRUCK. OTHER VEHICLES BEHIND ME HAD TO REACT TO IMMEDIATE SLOW DOWN OF OUR VEHICLE. MANAGED TO SUCCESSFUL PULL OVER TO VERGE OF ROAD WITHOUT INCIDENT. NOT REALIZING FUEL GAUGE WAS FAULTY A WEEK LATER SIMILAR SITUATION OCCURRED - RAN OUT OF GAS AS I WAS PULLING UP TO AN INTERSECTION - LIGHTS HAD JUST TURNED RED AND I WAS UNABLE TO APPLY ENOUGH PRESSURE TO BRAKES AS WE WERE HEADING DOWNHILL THAT I WENT THROUGH RED LIGHT AND 2 CARS HAD TO TAKE EVASIVE ACTION TO AVOID CRASHING IN TO ME. 2 YOUNG CHILDREN IN CAR AT THE TIME OF INCIDENT. REALIZING THERE WAS AN ISSUE - ENTIRE FUEL PUMP SYSTEM WAS REPLACED - TOTAL COST OVER $800. *TR

Mileage: 74,000

TL* THE CONTACT OWNS A 2006 GMC ENVOY DENALI XL. THE CONTACT STATED THAT THE CHECK ENGINE WARNING LIGHT ILLUMINATED. THE FUEL GAUGE ALSO FLUCTUATED BETWEEN EMPTY AND FULL ANDWOULD NOT PROVIDE AN ACCURATE READING. THE DEALER WAS INFORMED OF THE FIALURE AND THE CONTACT WAS AWAITING A SERVICE APPOINTMENT. THE MANUFACTURER WAS NOT AWARE OF THE FAILURE. THE CURRENT MILEAGE WAS APPROXIMATELY 56,000 AND THE APPROXIMATE FAILURE MILEAGE WAS 55,000.

Mileage: 55,000

MY FUEL LEVEL SENSOR IS FAILING TO TELL ME THE TRUE AMOUNT OF FUEL LEFT IN THE TANK. I OFTEN SAYS THAT THE TANK IS EMPTY BUT MANY TIMES IT CHANGES FROM 3/4 FULL TO 1/2 FULL AND SOMETIMES BACK UP TO FULL THEN EMPTY. I REPLACED THE FUEL LEVEL SENSOR AND IS NOW WORKING. I DO HAVE THE OLD SENSOR AVAILABLE. 2006 ENVOY DENALI XL. *TR

Mileage: 88,000

ABOUT 4 MONTHS AGO, AT AROUND 42,000 MILES, AFTER FILLING UP THE FUEL TANK, THE FUEL GAUGE STARTED FLUCTUATING FROM FULL TO EMPTY. FOR A FEW MONTHS THIS WOULD ONLY HAPPEN WHEN THE FUEL TANK WAS ABOVE FULL, BUT LATELY THE FUEL GAUGE WILL DROP TO EMPTY FOR LONGER PERIODS OF TIME AND AT ANY FUEL TANK LEVEL NOT JUST WHEN IT IS FULL. THIS MAKES IT REAL HARD TO KNOW HOW MUCH GAS IS LEFT IN THE TANK AND WOULD MAKE IT POSSIBLE TO RUN OUT OF GAS. *TR

Mileage: 42,000

TL*THE CONTACT OWNS A 2006 GMC ENVOY DENALI. THE CONTACT STATED THAT IN OCTOBER 2009, HE NOTICED THAT THE FUEL GAUGE WOULD "FLUTTER" AND REGISTER THAT IT WAS EMPTY WHEN HE ADDED GASOLINE TO THE FUEL TANK. AFTER CONSUMING FIVE TO SEVEN GALLONS OF FUEL, THE FUEL GAUGE WOULD BEGIN WORKING NORMAL UNTIL THE IT WAS TIME TO ADD THE MAXIMUM AMOUNT OF FUEL IN THE TANK. THE CHECK ENGINE LIGHT ALSO ILLUMINATED AND THE HEATER WOULD BLOW COLD AIR ON THE DRIVER SIDE AND HOT AIR ON THE PASSENGER SIDE. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE SENDING UNIT IN THE FUEL TANK WAS REPLACED AND THE HEATER WAS REPROGRAMMED; HOWEVER, THE HEATER STILL DID NOT FUNCTION PROPERLY. THE VIN WAS UNAVAILABLE. THE FAILURE MILEAGE WAS APPROXIMATELY 40,000. THE CURRENT MILEAGE WAS APPROXIMATELY 46,000.

Mileage: 40,000

AFTER FILLING GAS TANK, FUEL GAUGE DID NOT OPERATE PROPERLY, GOING FROM EMPTY TO FULL REPEATEDLY. CHECK ENGINE LIGHT CAME ON ALSO. *TR

Mileage: 49,000

WHILE DRIVING, CHECK ENGINE LIGHT CAME ON. FUEL TANK GAUGE STARTED TO CONTINUALLY SHIFT FROM WHATEVER STATE THE FUEL TANK WAS IN TO EMPTY THEN AFTER SOME TIME REVERT BACK TO NORMAL FUEL CAPACITY AT THE TIME. CONTACTED ONSTAR FOR A DIAGNOSTIC AND THEY STATED THERE IS A PROBLEM WITH THE FUEL SENDING UNIT. *JB

Mileage: 21,000