2005 GMC Envoy

THE SPEEDOMETER CONSTANTLY SHOWS DIFFERENT SPEEDS. WILL BE DRIVING DOWN EXPRESSWAY AT 65MPH AND NEXT THING YOU KNOW IT SHOWS 90MPH SO YOU SLOW DOWN 65 AGAIN AND REALIZE THAT EVERYONE FLIES BY. THE BEST I CAN FIGURE IS IT WILL SUDDENLY SHOW A DIFFERENT SPEED THAN ONE IS ACTUALLY GOING FROM 20MPH LESS TO 40MPH MORE. DIFFERENT EVERY TIME. *TR

THERE WAS IGNITION SWITCH FAILURE WHILE DRIVING THE VEHICLE. THE POWER STEERING AND BRAKES GAVE OUT, THE ENGINE SHUT OFF, AND ALL THE LIGHTS ON THE DASH CAME ON. IT RESEMBLED THE CAR RUNNING OUT OF GAS WITHOUT DOING SO. AFTER I PULLED OFF THE ROAD WITH GREAT DIFFICULTIES, I PUT THE CAR IN PARK AND THE VEHICLE GOT STUCK IN IT. THE ENGINE WOULD NOT TURN OVER AFTER THIS OCCURRED AND NEEDED TO BE TOWED. THERE IS NO RELEASE SWITCH WHICH THE TOW TRUCK DRIVER SAID THERE SHOULD BE SO HE COULD GET IT ONTO THE TRUCK, SO THE VEHICLE HAS TO BE DRUG WITH THE WHEELS LOCKED ONTO THE FLATBED AND THEN PUSHED OFF IN THE SAME MANNER. WE PAID TO HAVE IT FIXED AND IT HAS NOW HAPPENED AGAIN 5 MONTHS LATER. THERE ARE MANY REPORTS OF THIS ONLINE AND IT IS NOT JUST WITH THE GMC ENVOY DENALI IT ALSO INCLUDES THE CHEVY TRAILBLAZER AND POSSIBLY OTHER VEHICLES MANUFACTURED BY GM. THERE WAS ONE PERSON ONLINE THAT SAID THEY KEEP SPARE IGNITION SWITCHES IN THE VEHICLE AND THE TOOLS TO SWAP IT OUT BECAUSE OF HOW FREQUENTLY IT HAPPENS. THE DEALERSHIP REPLACED THE PART AND IT IS NOT AVAILABLE AS FAR AS I KNOW, BECAUSE IT WAS NOT RETURNED TO ME. THE VEHICLE WAS A 2005 GMC ENVOY DENALI. *TR

2005 GMC SPEEDOMETER FAILURE. STOPS WORKING AND GETS STUCK ON THE 120MILES POINT EVEN WHEN THE CAR IS OFF AND NOT JUST DRIVING. OCCURS AFTER ABOUT A FEW MINUTES OF DRIVING AND, AFTER ONLINE AND OFFLINE RESEARCH, IT TURNS OUT A LOT OF PEOPLE HAVE THESE PROBLEM WITH SOME GMC TRUCKS, ESPECIALLY THE GMC ENVOYS MODELS. AND GM IS NOT DOING ANYTHING OR REFUSING TO FIX IT SINCE IT IS A MANUFACTURERS DEFAULT. THERE HASN'T BEEN ANY RECALLS TO ADDRESS THIS ISSUE AND THERE ARE EVEN LAWSUITS IN SOME STATES ABOUT THIS. MY TRUCK IS NOT EVEN OLD ONLY 52,000 MILES AND I DON'T DRIVE A LOT JUST TO WORK AND HOME. *TR

THIS PROBLEM NOTED BELOW IS VERY VERY COMMON IN BOTH CHEVY TRAILBLAZERS AND GMC ENVOYS. HERE'S ONE LINK WITH OVER 200 DESCRIPTIONS OF THIS SAME PROBLEM. HTTP://WWW.TOPIX.COM/FORUM/AUTOS/CHEVROLET-TRAILBLAZER/TH8JI6TEPO3VRJI3D PLEASE INVESTIGATE THIS ISSUE. IT IS VERY WIDESPREAD AND HAS POTENTIAL TO BE DANGEROUS DUE TO CARS STALLING OUT IN THE MIDDLE OF TRAFFIC. I KNOW PERSONALLY AS MINE HAS. PLEASE READ ON.THANK YOU FOR YOU HELP! 1.) FUEL GAUGE STARTED FLUCTUATING WHEN GAS TANK IS FILLED. FOR TWO WEEKS GAUGE WOULD START TO MOVE TOWARDS EMPTY WHEN IN FACT TANK IS FULL. THEN GAUGE DOES NOT WORK AT ALL OR SHOWS EMPTY MOST OF THE TIME, THEN GAUGE MOVES SLIGHTLY ABOVE THE POINT WHERE LOW FUEL LIGHT ILLUMINATES AND THE LOW FUEL WARNING DINGS FREQUENTLY AS IT FLUCTUATES BETWEEN EMPTY AND LESS THAN A 1/4 TANK. 2.) MY ENVOY STOPPED RUNNING IN MIDDLE OF HIGHWAY TRAFFIC. THE CHECK ENGINE LIGHT CAME ON, I HAD TO COAST TO SHOULDER IN 5 O'CLOCK TRAFFIC IN SOUTHERN CALIFORNIA. CAR DID START AGAIN AFTER A FEW MINUTES COMPUTER RESET. 3.) I HAVE MY CAR AT THE SHOP NOW. INITIAL CODE INDICATES FUEL PUMP ISSUE. FROM READING ALL OF THE POSTED COMPLAINTS THIS IS AN ISSUE THAT SHOULD BE ADDRESSED WITH A RECALL. *TR

WHEN I FILL UP MY 2005 GMC ENVOY WITH GAS THE FUEL GAUGE STAYS ON E, SOMETIMES IT WILL EVENTUALLY GO UP TO 1/4 TANK BUT ALWAYS DROPS BACK DOWN. THIS CREATES A PROBLEM BECAUSE I NEVER REALLY KNOW WHEN MY TANK IS EMPTY, ALWAYS GUESSING ON WHEN I NEED TO FILL UP. I HAVE GONE TO THE DEALERSHIP AND THEY TOLD ME IT WOULD BE ABOUT $600 TO FIX, IT IS NOT A WARRANTY ISSUE AND NOT A RECALL. AFTER DOING SOME RESEARCH ON THE INTERNET IT APPEARS LIKE THIS IS A BIG PROBLEM AND I FEEL LIKE GMC SHOULD DO A RECALL TO FIX THIS. THIS IS NOT A "NORMAL" WEAR AND TEAR ISSUE ON A FAIRLY NEW VEHICLE. *TR

I WAS DRIVING MY CAR AND LOST THE DRIVE GEAR AND HAD TO DOWN SHIFT TO 2ND GEAR ALTHOUGH I OWNED AN AUTOMATIC CAR. I ONLY HAD A CAR WITH 50,000 MILES ON IT. I COULDN'T BELIEVE IT COULD BE MY TRANSMISSION ALREADY. I WAS ABLE TO UP SHIFT TO DRIVE BUT ONLY AFTER GOING INTO 2. WHEN I ARRIVED AT MY UNCLES HOUSE, HE SAID THE TRANSMISSION WAS LIKELY GONE. *TR