MY 2003 YUKON XL (51,000 MILES) FLEX FUEL SENSOR IS ROTTING OFF THE VEHICLE. WAS TOLD IT IS NOT COVERED. IT IS SELF DESTRUCTING AROUND THE AREA WHERE THE FUEL LINES ENTER THE SENSOR. IF THE CORROSION CONTINUES IT WILL CAUSE FUEL TO SPRAY ALL OVER THE UNDERCARRIAGE. I AM AN ASE MASTER TECH. AND A VOCATIONAL AUTOMOTIVE INSTRUCTOR. I FEEL THIS COULD POSE A SEVERE SAFETY ISSUE. *NM
2003
ELECTRICAL SYSTEM: INSTRUMENT PANEL
SPEEDOMETER ACTING ERRATICALLY. WHEN THE VEHICLE IS STOPPED, THE SPEEDOMETER READS ANYWHERE FROM 30 - 80 MPH. THEN WHEN DRIVING THE SPEEDOMETER GOES PAST 120 MPH WHILE DRIVING 30 - 50 MPH. BASICALLY, DOES NOTHING BUT CONFUSES THE DRIVER AND I AM NOT CONVINCED THAT IT IS NOT TRACKING THE MILEAGE ON THE ODOMETER AS IF YOU WERE TRAVELING AT THE 120 MPH RATE.*JB