2004 GMC YUKON Vehicle Speed Control Problems

It is just like the the service bulletin out for the 2006 and later gmc sierra except it’s for a 2004 gmc Yukon slt 4x4 4.8L. It is going into reduced engine power mode and it has to do with the throttle actuator control module. Throws code P2108

THE GAUGES IN THE INSTRUMENT CLUSTER STOP WORKING. FIRST THE SPEEDOMETER THEN THE TACHOMETER, AND NOW THE AMP METER. ON GOING PROBLEM. DEFINATELY A SAFETY CONCERN BUT NO ONE WANTS TO ADDRESS THE ISSUE. THE DEALER WANTS 600.00 DOLLARS TO REPAIR IR BUT DOES NOT GUARANTEE IT WILL BE THE FIX. OTHER VEHICALS OF THIS YEAR AND MODEL HAVE THE SAME ISSUE.

Mileage: 110,000

DAYS AFTER PURCHASING THE VEHICLE, THE CHECK ENGINE LIGHT CAME ON, THE VEHICLE POWERED DOWN TAKING THE SPEED FROM 35MPH OR ABOVE TO 5-10 MILES MPH WITH OUT WARNING. THIS CONTINUOUSLY HAPPENED AS YEARS PASSED AND GM CERTIFIED REPAIR SHOP NEVER FOUND WHAT'S WRONG. UNTIL ABOUT TWO YEARS AGO, I GOOGLED ISSUE AND FOUND ITS RELATED TO ACCELERATOR PEDAL AND WIRING FROM PEDAL THAT LEADS TO ENGINE THROTTLE CONTROL, I CHANGED THROTTLE CONTROL PLUG TO NEW AND REPLACED ACCELERATOR PEDAL WITH USED PART AND WORKED FINE FOR TWO YEARS BUT HAS NOW STARTED FAILING AGAIN. I AM AFRAID OF THIS ISSUE BECAUSE I COULD BE ON FREEWAY GOING 65 MPH AND IF THESE FAIL AS THEY HAVE AND ARE, I THEN SLOW DOWN TO 5-10 MPH IN A MATTER OF SECONDS AND COULD CAUSE A SERIOUS ACCIDENT. PLEASE HELP, THERE SHOULD BE A RECALL FOR THIS. *TR

Mileage: 60,000

I WAS GOING TO WORK AND NOTICE MY SPEEDOMETER WAS NOT MOVING...AND THE RMP READING WAS NOT MOVING. I CHECK WITH MY MACHANIC AND THE PRICE WAS OVER $600. TO FIX AND ALL THE CABLES HAVE TO BE REPLACED BECAUSE THEY ARE ALL PUT TOGETHER. GMC KNOW THERE'S A PROBLEM WITH THE SPEEDOMETER CABLES. WE HAVE A 94 GMC AND NO PROBLEM WITH THE SPEEDOMETER. *TR

Mileage: 150

FUEL GAUGE READING INACCURATELY. NEEDLE WENT WAY PAST THE FULL MARK INTO THE BLANK AREA ON THE BOTTOM OF THE GAUGE. ALSO, THE SPEEDOMETER WAS READING 120MPH WHEN I WAS PULLING OUT OF MY DRIVEWAY. I STUCK AT 70MPH WHEN I WAS STOPPED.

Mileage: 74,006

2004 GMC YUKON. SPEEDOMETER MALFUNCTIONS. SPEEDOMETER ERRATIC. READS UP TO 120 MILES PER HOUR AND VEHICLE TRAVELING AT 55 MPH BY GPS TRACKING DEVICE. VEHICLE HAS APPROX. 85K MILES.*DT

Mileage: 84,000

TRACTION ACTIVE APPEARS ON DISPLAY - WHILE STOPPED AT A VERY DANGEROUS INTERSECTION, I PRESSED THE ACCELERATOR ONLY TO HAVE THE TRACTION ACTIVE LIGHT APPEAR ON THE DISPLAY AND THE VEHICLE WOULD NOT MOVE. I HAD TO LET OFF THE GAS AND THEN PRESS IT AGAIN IN ORDER FOR THE VEHICLE TO MOVE. THIS IS A MAJOR SAFETY CONCERN AS I AM UNABLE TO ACCELERATE AT AN APPROPRIATE SPEED IN ORDER TO AVOID AN ACCIDENT WHILE TAKING OFF FROM A STOP. *TR

Mileage: 94,000

THE SPEEDOMETER MALFUNCTIONED, LEAVING THE NEEDLE STUCK AT OVER 120 MPH. I NOW HAVE NO WAY OF KNOWING HOW FAST I AM TRAVELING, PUTTING MYSELF AND OTHERS AT RISK. *AK

SPEEDOMETER MALFUNCTIONED. I NOTE FROM DOING A WEB SEARCH THAT THERE WERE MANY PEOPLE WITH THIS SAME PROBLEM WITH THIS VEHICLE.*AK

Mileage: 79,000

SPEEDOMETER SHOWS OVER 120 MPH WHEN PARKED AND WHILE DRIVING, OIL GAUGE DOES NOT FUNCTION PROPERLY EITHER, HAPPENED RIGHT AROUND 40,000 MILES, TWO FRIENDS OF MINE PURCHASED THE 2004 ENVOY AND HAVE HAD THE SAME PROBLEM, ALL VEHICLES WERE PURCHASED FROM THE SAME DEALERSHIP JUST A FEW MONTHS APART. *AK

Mileage: 36,000

SPEEDOMETER JUST STOPPED WORKING. EVERYTHING WAS GOING ALONG FINE, THEN, IT JUST WENT TO PAST 120 AND STAYED THERE. IT'S NOW STUCK. *JB

ABOUT 4 WEEKS AGO (3000 MILES) MY SPEEDOMETER BEGAN TO PERIODICALLY MALFUNCTION. IT WOULD BEGIN TO SHOW ACCELERATION IN EXCESS OF 120 MPH EVEN THOUGH I WOULD BE TRAVELING AT SPEEDS LESS THAN 45 MPH. ONCE THE VEHICLE WAS TURNED OFF IT WOULD SEEM TO WORK NORMALLY. THIS PROBLEM QUICKLY DEVELOPED INTO A FULL-TIME PROBLEM. NOW WHEN MY VEHICLE IS IN PART IT MAY REGISTER FROM 70 TO 90 MPH. I TOOK THE VEHICLE TO THE GMC DEALER FOR A QUOTE AND WAS TOLD THAT THEY HAD FIXED THIS SAME PROBLEM ON A NUMBER OF YUKONS AND THAT I NEEDED A NEW INSTRUMENT CLUSTER. *JB

Mileage: 63,000

DT*: THE CONTACT STATED THE SPEEDOMETER STOPPED WORKING WITHOUT PRIOR WARNING. THE ODOMETER CONTINUED TO REPRESENT CORRECT MILEAGE, BUT THE SPEEDOMETER WOULD NOT REGISTER THE SPEED. ALTHOUGH THE DEALER DID NOT INSPECT THE VEHICLE HE SUGGESTED THE SPEEDOMETER NEEDED TO BE REPLACED. THE DEALER COULD NOT PERFORM THE REPAIR BECAUSE OF A LACK OF PARTS. THE MANUFACTURER WAS CONTACTED, AND THEY EXPLAINED THE PARTS WERE ON NATIONAL BACKORDER. *AK

Mileage: 37,500

DT*: THE CONTACT STATED THE SPEEDOMETER IS NOT WORKING PROPERLY. IT IS NOT RECORDING THE ACTUAL SPEED THE VEHICLE IS TRAVELING. THE VEHICLE HAS BEEN TAKEN TO THE DEALERSHIP TO DETERMINE THE PROBLEM. THE MANUFACTURER HAS BEEN CONTACTED.*AK

Mileage: 59,000