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Pontiac Grand Prix Electrical System Safety Report | Jan 01, 1999
Reported on Jan 01, 1999
| CAR OVER HEATS IN STALLED TRAFFIC. I HAVE REVIEWED THE OVERHEATING AND CAR FIRE COMPLAINTS IN THE DEFECTS DATA BASE AND BELIEVE THE MAIN PROBLEM HAS NOT BEEN IDENTIFIED: 'THE COMPUTER WILL NOT CALL FOR FULL FAN POWER' UNLESS THE A/C IIS RUNNING.. DRIVING THE CAR WITH THE WINDOWS DOWN ON A WARM DAY IN STALLED TRAFFIC, WILL RAISE THE ENGINE TEMPERATURE AS THE COOLING FANS ARE BOTH RUNNING IN SLOW SPEED AND WILL NOT GO TO THE HIGH COOL MODE . BUT, TURNING THE A/C ON WILL SPEED UP THE FANS TO HIGH AND COOL THE ENGINE. THE COMPUTER SHOULD RECOGNIZE THE NEED FOR ADDITIONAL COOLING WITH OUT THE A/C HAVING TO BE TURNED ON. THE INCREASED ENGINE HEAT DUE TO THIS 'COOLING SYSTEM LOGIC FAILURE' WILL CONTRIBUTE TO THE OIL LEAKS AND ENGINE FIRES THAT HAVE ALREADY BEEN REPORTED TO THIS AGENCY. MY VEHICLE, THE RADIATOR, FANS, RELAYS ARE ALL WORKING AS DESIGNED, AND THERE ARE NO DIAGNOSTIC CODES. THUS I AM ADVISING THAT THIS IS A DEFECT IN LOGIC WITH REGARD TO CONTROLLING THE HIGH SPEED FUNCTION OF THE RADIATOR COOLING FANS. HAVING INSTALLED A NEW RADIATOR RECENTLY AND RESEALED THE VALVE COVER PANS, I REMAIN CONVINCED THAT THE PROBLEM IS WITH THE 'COOLING CIRCUIT LOGIC . *TR | |
| Make: | Pontiac |
| Model: | Grand Prix |
| Manufactured by: | GENERAL MOTORS CORP. |
| Year: | 1999 |
| Was a crash reported? | N |
| Was an injury reported? | |
| Was a death reported? | |
| Was a fire reported? | N |
| Location: | CHICAGO HEIGHTS IL |
| Vehicle Identification Number (VIN): | 1G2WP52K2XF |
| Mileage: | 1 miles. |
| Speed: | |
| Number of cylinders: | |
| Vehicle type: | |
| Vehicle fuel: | |
| Was a police report filed? | N |
| Tire size: | |
| Dealer name and location: | |
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