2000 JAGUAR XJV8 Engine And Engine Coolingengine Problems

MY 2000 XJ8 JAGUAR, WITH APPROXIMATELY 36K MILES, BEGAN RUNNING VERY BADLY AND SURGING UNEXPECTEDLY. THE CAR BECAME VERY DANGEROUS TO DRIVE AND I NARROWLY AVOIDED HAVING, WHAT COULD HAVE BEEN SEVERE ACCIDENTS, ON MORE THAN ONE OCCASION. THE CAR WAS TAKEN TO TWO JAGUAR DEALERS, WHO COULD NOT IDENTIFY THE PROBLEM. ONE KEPT SAYING THE CAR NEEDED A NEW THROTTLE BODY. AFTER THE CAR HAD ITS THIRD THROTTLE BODY, AT MY EXPENSE...AND AFTER GETTING THE NEW JERSEY JAGUAR REPRESENTATIVE INVOLVED, THE DEALERSHIP DECIDED THE PROBLEM PROBABLY WAS NOT THE THROTTLE BODY. THE CAR HAS BEEN TO THREE OTHER MECHANICS, ONE OF THOSE HAS HAD IT THREE TIMES. NONE COULD IDENTIFY THE SOURCE OF THE PROBLEM, ALTHOUGH ALL AGREED THE VEHICLE COULD NOT BE DRIVEN SAFELY. THE LAST MECHANIC, WHO HAS HAD THE CAR SINCE NOVEMBER, WAS WORKING ON THE CAR WHEN IT DROPPED A VALVE. TURNS OUT THE TIMING...

2000 JAGUAR XJR X308, 47,500 MILES, TIMING CHAIN TENSIONER FAILURE. VERY WELL DOCUMENTED, KNOWN MECHANICAL FAILURE WITH THE CAR THAT JAGUAR REFUSES TO PAY FOR. THIS PROBLEM IS CLEARLY A DEFECT IN THE PRODUCT AND SHOULD HAVE BEEN RECALLED/REPLACE UNDER WARRANTY. *NM

WHILE DRIVING, INTERMITTENTLY THE ENGINE LIGHT WOULD ILLUMINATE. PLEASE PROVIDE MORE INFORMATION. *JB

VEHICLE'S FAIL SAFE ENGINE MODE LIGHT KEEPS COMING ON. THIS RESULTED IN THE VEHICLE LOSING POWER. THE OWNERS MANUAL INDICATED NOT TO DRIVE THE VEHICLE WHEN THIS LIGHT CAME ON. THE DEALERSHIP HAS SERVICED THE VEHICLE 5 TIMES BUT CANNOT FIX THE PROBLEM. *NLM