1996 BUICK RIVIERA Engine And Engine Cooling Problems

ELECTRICAL (?)--THE ENGINE DIES WHILE DRIVING AT HIGHWAY SPEEDS. THE ENGINE WILL NOT RESTART WHEN SHIFTED TO NEUTRAL WHILE STILL ROLLING BUT DOES RESTART WHEN THE BRAKE IS APPLIED! THIS HAS HAPPENED SEVEN TIMES DURING THE PAST 9 MONTHS AND IS HAPPENING WITH MORE FREQUENCY--4 TIMES THIS MONTH! THE BUICK SERVICE DEPT. HAS NOT BEEN ABLE TO RECREATE THE PROBLEM AND CANNOT DETERMINE THE SOURCE OF THE PROBLEM. *LA

WHILE DRIVING THE VEHICLE SHUT OFF. THE VEHICLE WAS TAKEN TO THE DEALER BUT THEY WERE UNABLE TO DUPLICATE THE PROBLEM. PLEASE PROVIDE ANY ADDITIONAL INFORMATION. *NM

Mileage: 135,000

TRACTION LIGHT CAME ON AND STAYED ON, WHICH COULD INDICATE A PROBLEM WITH ENGINE OR BRAKES PER OWNER'S MANUAL. CONTACTED DEALER.*AK

WATER PUMP FAILED WITH ONLY 50100 MILES ON THE VEHICLE. VEHICLE HAS BEEN MAINTAINED TO BUICK'S RECOMMENDATIONS.*AK

WATER PUMP REPLACED. *MJS

ALTERNATOR IDLER PULLY AND BELT REPLACED. *MJS

WATER PUMP REPLACED. *MJS

ALTERNATOR IDLER PULLY AND BELT REPLACED. *MJS

DEALER HAS BEEN VERY HELPFUL, BUT ENOUGH IS ENOUGH. THE BRAKE MODULE JUST DID THE SAME THING IT DID LAST YEAR AND WE JUST HAD THE OXYGEN SENSOR REPLACED. FOR THIS EXPENISVE A CAR, IT HAS BEEN IN THE SHOP CONSTANTLY AND IS UNRELIABLE. WE HAVE NEVER IN THE LAST NINE CARS HAD ANY OF THEM BE IN THE SHOP LIKE THIS. THIS IS REGRETFULLY OUR FIRST AND LAST BUICK AT THIS RATE. THE CAR IS LOVELY, BUT CAN'T BE TRUSTED ON OVER A TWO HOUR TRIP. *AK

COOLANT SENSOR FAILED.

3800 SERIES II SUPER CHARGED ENGINE; WHILE DRIVING HEARD CLANKING ENGINE DROPPED DEAD ON HIGHWAY COAST TO STOP. DEALER WILL NOT OPEN ENGINE, JUST REPLACE. TT