2000 JAGUAR XJV8 Electrical System Problems

MY 2000 XJ8 BEGINS TO SURGE AFTER THE VEHICLE RUNS FOR A FEW MINUTES. YOU MUST STAND ON THE BRAKE PEDAL WITH BOTH FEET TO KEEP FROM SURGING INTO ANOTHER CAR AT A STOP SIGN OR RED LIGHT. THE DEALER IN TUCSON, AZ REPLACED AN AC COMPONENT, WHICH DID NOT SOLVE THE PROBLEM. THE EL PASO, TX DEALER CLAIMED IT NEEDED THE THROTTLE BODY REPLACED. IT WAS REPLACED...NO CHANGE. OWL AUTOMOTIVE CHANGED A SPARK PLUG AND WIRE...NO CHANGE. OWL THOUGHT THE ECU MIGHT BE THE PROBLEM. IT WAS SENT TO TECHNICIANS WHO CHECKED AND UPGRADED THE UNIT...NO CHANGE. ALSO, IT DID NOT INDICATE ANY PROBLEMS. CAR WAS TAKEN BACK TO EL PASO DEALER. THEY STATED IT NEEDED ANOTHER THROTTLE BODY. I CONTACTED USA JAGUAR, WHO CONTACTED THE EL PASO DEALER AND INSTRUCTED THEM HOW TO CHECK THE THROTTLE BODY OFF THE CAR. THE DEALER THEN STATED THE PROBLEM WASN'T THE...

WAS DRIVING MY 2000 JAGUAR XK8 ON INTERSTATE 55 IN ILLINOIS WHEN THERE WAS A "POP" THAT SOUNDED LIKE A SPEAKER GOING OUT. SMOKE RUSHED OUT OF THE DASHBOARD VENTS. A FIRE OCCURRED WITHIN THE DASHBOARD. FLAMING PIECES OF PLASTIC AND PARTS DROPPED TO THE FLOORMAT AND SET FIRE TO THE CARPET. THE VEHICLE CABIN QUICKLY FILLED WITH HEAVY SMOKE. IT ALL HAPPENED SO FAST - I WAS ABLE TO PULL THE VEHICLE TO THE SIDE OF THE INTERSTATE AND BARELY CLEARED THE CAR BEFORE THE ENTIRE PASSENGER CABIN BURST INTO FLAMES. I CALLED 911 - BY THE TIME FIREFIGHTERS ARRIVED, THE ENTIRE VEHICLE WAS ENGULFED IN FLAMES. IT WAS A TOTAL LOSS. THE POLICE, FIREFIGHTER AND OTHERS SURMISED A PROBLEM WITH THE WIRING HARNESS OR ONE OF THE ONBOARD COMPUTER/FUSE/RELAY SYSTEMS IN THE VEHICLE. THIS CAR HAS BEEN WELL MAINTAINED - ALL THE RECORDS EXIST TO PROVE IT. TO...