1995 Pontiac Bonneville

1995 PONTIAC BONNEVILLE ENGINE WOULD SUDDENLY SHUT OFF ANYTIME, ANYWHERE, AT ANY SPEED, USUALLY DURING WARMER WEATHER, LEAVING THE DRIVER WITH NO POWER BRAKES NOR POWER STEERING. THE CAR USUALLY WOULD NOT START FOR AT LEAST 30 MINUTES, STRANDING THE DRIVER AND PASSENGERS. AFTER SPENDING ALOT OF TIME AND MONEY TRYING TO DIAGNOSE THE PROBLEM, WE REPLACED A "FUNCTIONING" YET DEFECTIVE TPS (THROTTLE POSITIONING SENSOR) THAT DID NOT MALFUNCTION TO THE POINT OF REGISTERING A CODE ON THE COMPUTER. THE PROBLEM HAS NOT RECURRED. *TR

IN FEBRUARY 2010, DRIVING AT 5 MPH WHILE MAKING RIGHT TURN ON BUMPY BLACKTOP, THE ENGINE FELL OUT FROM UNDER CAR CAUSING STEERING TO BECOME INOPERABLE. CAR WAS TOWED FROM SCENE. UPON INVESTIGATION IT WAS FOUND THAT 4 (REAR) OF 6 BOLTS HOLDING ENGINE CRADLE TO UNI-BODY FRAME PULLED THROUGH RUSTED RETAINERS. ALL (6) BOLTS, RETAINERS, SPACERS AND INSULATORS WERE REPLACED. THE STEERING LINKAGE WAS REATTACHED AND THE CLOCK SPRING COIL KIT WAS REPLACED (CLOCK SPRING WAS TORN WHEN STEERING LINKAGE SEPARATED). THIS INCIDENT CAUSED A LOT OF CONCERN BECAUSE IT COULD HAVE HAPPENED AT ANY SPEED. TOWING, REPAIRS AND PARTS COST $805.14. 4 MONTHS LATER THE STEERING RACK WAS FOUND TO BE LEAKING AND WAS REPLACED AT A COST OF $450. NO PARTS HAVE BEEN RETAINED BUT PHOTOS OF THE BOLTS IN THE FRAME WITH THE ENGINE SUB FRAME HANGING ARE AVAILABLE. NATURALLY THE RETAINERS THAT FAILED ARE GONE BECAUSE THEY FELL OFF WHEN THEY FAILED. THE ENGINE DID NOT FALL ENTIRELY FROM THE VEHICLE BECAUSE THE 2 FRONT BOLTS WERE STILL INTACT AND THE UPPER ENGINE MOUNT HELD THE ENGINE SUB FRAME 2" ABOVE THE ROAD SURFACE. *TR

DRIVING AT 65 MPH. EXHAUST SUDDENLY BEGAN SPEWING COPIOUS AMOUNTS OF WHITE SMOKE, WHICH BLINDED MANY OTHER MOTORISTS MOVING AT THE SAME SPEED. ENGINE BEGAN RUNNING VERY ROUGH. I PULLED OVER AND SHUT IT DOWN. VEHICLE WAS TOWED TO MECHANIC, WHERE IT WAS DIAGNOSED AS A BLOWN HEAD GASKET. HEAD GASKETS WERE CHANGED, AS WERE ALL OTHERS NEEDED TO DO THIS REPAIR. UPON RE-FILLING THE RADIATOR WITH ANTIFREEZE, IT BEGAN LEAKING FROM UNEXPECTED PLACES. UPON FURTHER INVESTIGATION, IT WAS DETERMINED THAT THIS WAS YET ANOTHER CASE OF THE UPPER INTAKE TUNNEL (PLASTIC) HAVING FAILED. I CALLED THE DEALER, AND WAS INFORMED THAT THIS PART HAS BEEN REDESIGNED, AND DUE TO THE HUGE NUMBERS OF THESE NEEDING TO BE MANUFACTURED AND SOLD, THE PRICE HAS BEEN REDUCED SIGNIFICANTLY. THE OLD PART HAD TO BE TURNED IN TO THE DEALER AS A 'CORE' ITEM. *NM

I PURCHASED THIS CAR USED FROM A DEALER IN 2001 IN MICHIGAN. (I DON'T THINK THE AIR CONDITIONING EVER WORKED ). WITHIN A FEW MONTHS THE TRACTION CONTROL WENT OUT. IT WOULD BE ON, WHEN THE CAR STARTED, BUT WITHIN DRIVING 300FT. WOULD GO OUT AND COULD NOT BE TURNED BACK ON FROM THE BUTTON. A FEW MONTHS AFTER THAT ALL OF THE DASH LIGHTS WENT OUT WHEN EVER YOU TURNED ON THE HEAD LIGHTS. THIS WAS DUE TO A BAD SWITCH & A SHORT. THEN THE CRUSE CONTROL WENT OUT. A FEW MONTHS AFTER THAT WE HAD TO REPLACE THE HEAD GASKETS DUE TO THE ENGINE OVER HEATING BY AN UNKNOWN CAUSE. 1 MONTH AFTER THAT WE HAD TO REPLACE THE ENGINE AFTER THROWING A ROD AND CRACKING THE ENGINE BLOCK, DUE TO THE FACT THAT THERE WAS STILL FLUIND IN THE ENGINE FROM MELTED MANAFOLD.( THIS ALL TOOK PLACE BETWEEN NOV. 2001 & JAN. 2002) AFTER THAT THE IGNITION HAD TO BE REPLACED BECAUSE ONE OF THE WIRES WAS SEVERED DUE TO THE WHEEL TILT. (WE WOULD TILT THE WHEEL & COULD NOT START THE CAR). IN NOV. 2002 THE TRANSMISSION STARTED TO SLIP, WE HAD IT REPLACED. THEN ALL AT ONE TIME (2003) THE BATTERY WENT DEAD, THE TIMING CHAIN HAD JUMPED A TOOTH, THE CAM SENSOR, AND THE SPARK PLUGS WHICH HAD BEEN CHANGED A FEW WEEKS BEFORE. A FEW WEEKS AFTER THAT THE ENGINE OVERHEATED AGAIN DUE TO A LEAK IN THE COOLANT RESOVOIR BOTTEL, THIS CAUSED THE HEAD GASKETS TO BLOW AGAIN. IT IS NOW 2004 WE HAVE AN ONGOING ELECTRICAL PROBLEM. SINCE MID 2003 WE HAVE GONE THROUGH 3 PCM & 3 PROMS DUE TO THE FACT THE THEY KEPT FRYING ( A RESULT OF A BAD GROUND THAT STILL CAN NOT BE FOUND), AN ALTANATOR DUE TO THE FACT THAT IT HAD SPIKES. THE CHECK ENGING LIGHT WOULD CONSTANTLY COME ON & WHEN THE CODES WERE PULLED THE EGR VLAVE WAS LISTED, WE REPLACED IT AND STILL THE CHECK ENGINE LIGHT CAME ON DUE TO A STILL BAD PCM. NOW WHENEVER WE TURN ON THE BLINKER THE VOLTAGE GAGE MOVES IN TIME WITH IT DUE TO A SHORT. THE RPM'S SURGE AT TIMES WHILE CAR IS IN MOTION OR AT IDLE, CAUSING THE CAR TO SATLL OR BACKFIRE. THE CAUSE IS STILL UNKNOWN. *AK

AUTOMOBILE STOPS WITH NO WARNING LEAVING ME WITH NO BRAKES OR STEERING. SOMETIMES IN HEAVY TRAFFIC AT HIGH RATES OF SPEED. GENERAL MOTORS DEALERSHIP MECHANICS COULD NOT FIND THE PROBLEM. I HAVE LOOKED ON OTHER SITES AND HAVE FOUND THAT THIS IS A COMMON DEFECT WITH THIS MODEL. HOPEFULLY NO ONE HAS TO GET INJURED OR KILLED BEFORE SOMETHING IS DONE TO FIX THE PROBLEM. *AK