2005 GMC Sierra 2500

TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500HD. THE CONTACT STATED THAT THE SPEEDOMETER BECAME NON-FUNCTIONAL AND FAILED TO DISPLAY THE SPEED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHO STATED THAT THE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE CURRENT MILEAGE WAS APPROXIMATELY 106,000. THE FAILURE MILEAGE WAS APPROXIMATELY 88,400.

GM STATES THAT DEXRON-VI IS FULLY BACKWARDS COMPATIBLE WITH ALL DEXRON-III APPLICATIONS. MY VEHICLE IS A 2005 GMC SIERRA K2500HD, WITH AN 8.1L GASOLINE ENGINE AND ALLISON 1000 TRANSMISSION. AFTER PERFORMING A ROUTINE SERVICE ON MY TRANSMISSION (FLUID DRAIN AND REFILL), REPLACING THE DEXRON-III WITH DEXRON-VI, I NOTICED THE SEALS AND GASKETS LEAKING FROM AROUND THE TRANSMISSION. UPON FURTHER RESEARCH, I FOUND THAT THE SYNTHETIC DEXRON-VI IS NOT COMPATIBLE WITH CERTAIN SEALS INSTALLED IN ALLISON BRAND TRANSMISSIONS. ALLISON TRANSMISSION DOES NOT APPROVE THE USE OF DEXRON-VI IN ITS TRANSMISSIONS DUE TO THE SEAL INCOMPATIBILITY (ALLISON SERVICE TIP #1099P). ANOTHER ALLISON DOCUMENT (SA5429EN) LISTS TWO SERIAL NUMBER CUTOFFS, PRIOR TO WHICH CONTAIN SEALS INCOMPATIBLE WITH DEXRON-VI. THE SITUATION HAS YET TO BE RESOLVED - GM DENIES ANY POSSIBLE INCOMPATIBILITY, AND WILL NOT WARRANT ANY DAMAGES, WHILE ALLISON REPRESENTATIVES HAVE TOLD ME THAT THE PROBLEM IS A DIRECT RESULT OF DEXRON-VI. THE ESTIMATED COST TO REPLACE ALL OF THE SEALS IN THE TRANSMISSION IS $1,900.00. *TR

PRIOR TO THE BEGINNING OF THIS PROBLEM, THE VEHICLE WAS OPERATING NORMALLY. WHEN THE VEHICLE WAS REFUELED TO FULL, A STRONG SMELL OF GASOLINE WOULD SURROUND THE VEHICLE AND FUEL WOULD BEGIN TO DRIP FROM UNDER THE VEHICLE IN THE AREA OF THE FUEL TANK. WHEN TANK WAS FILLED ONLY PARTIALLY (BELOW 75%) ONLY THE STRONG SMELL OF GASOLINE WOULD OCCUR AFTER REFUELING. THE VEHICLE WAS TAKEN TO A GM DEALERSHIP AND AN INSPECTION WAS PERFORMED AND A CRACK WAS FOUND IN THE FUEL TANK WHERE THE FILLER NECK ATTACHES TO THE BODY OF THE FUEL TANK. THE FUEL TANK WAS REPLACED AND THE PROBLEM HAS BEEN CORRECTED. *TR

TL*THE CONTACT OWNS A 2005 GMC SIERRA 2500HD 6.0. THE CONTACT STATED THAT HE NOTICED THAT THE SPEEDOMETER, FUEL GAUGE AND HEAT ODOMETER GAVE INACCURATE READINGS. THE VEHICLE WAS INSPECTED AT A LOCAL REPAIR SHOP WHERE THE CONTACT WAS INFORMED THAT THE INSTRUMENT CLUSTER NEEDED TO BE REPLACED. THE FAILURE MILEAGE WAS APPROXIMATELY 100,000. THE VIN WAS UNAVAILABLE.

NOTICED A NOISE IN THE FRONT SUSPENSION/DRIVE TRAIN. AN ALIGNMENT SHOP CHECKED THE FRONT END AND THEY FOUND THAT THE FRONT SEALED WHEEL BEARINGS WERE ABOUT TO HAVE A CATASTROPHIC FAILURE. VEHICLE HAS 65,000 MILES AND HAS NEVER BEEN SUBJECTED TO HARSH ENVIRONMENTS. WAS TOLD THAT THE VEHICLE COULD NOT BE DRIVEN SAFELY. SEALED BEARINGS HAVE NO MAINTENANCE OPTIONS AND CAN CREATE AN ACCIDENT. LEARNED OF OTHER GMC FRONT WHEEL BEARING ISSUES WHILE MEETING WITH THE SHOP TO ARRANGE FOR REPAIRS. *TR

DETAILS: 2005 GMC SIERRA PICK UP TRUCK. THE SPEEDOMETER NEEDLE WILL NOT GO BACK TO 0 WHEN I AM STOPPED, WHICH CAUSES THE SPEEDOMETER TO READ WRONG MPH WHEN DRIVING. THE PROBLEM IS OCCURRING MORE AND MORE SINCE IT FIRST BEGAN. IT STARTED FOR NO APPARENT REASON APPROXIMATELY 6 - 7 MONTHS AGO. DEALER WAS VERY AWARE OF THIS PROBLEM, BUT I AM PAST ANY WARRANTIES OUT THERE. APPROXIMATE COST TO ME TO FIX FROM THE DEALER IS $500. I CANT AFFORD THIS. HOWEVER, BASED UPON NUMBER OF POSTINGS ON THE INTERNET, IT LOOKS TO ME LIKE A RECALL IS IN ORDER. *TR