1994 MAZDA B-SERIES TRUCK Vehicle Speed Control Problems

TL* THE CONTACT OWNS A 1994 MAZDA B-SERIES TRUCK. WHILE THE VEHICLE WAS PARKED, IT INDEPENDENTLY ACCELERATED, CRASHED INTO A FENCE, AND DROVE OVER THE OWNER OF THE VEHICLE. THE OWNER SUSTAINED FATAL INJURIES. THE VEHICLE WAS TOWED TO AN IMPOUND LOT WHERE THE FAILURE RECURRED, ALMOST STRIKING TWO POLICE OFFICERS. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS NOT AVAILABLE.

ON LONG TRIPS, OFTEN IN COLD, WET OR SNOWY WEATHER, THE ENGINE WILL OCCASIONALLY REV OUT OF CONTROL. THIS IS NOT AN ISSUE OF THE THROTTLE CABLE ICING UP BECAUSE TURNING THE ENGINE OFF AND RESTARTING IT (WHICH IS THE LAST THING YOU WANT TO DO WHILE STILL MOVING ON ICY ROADS) TEMPORARILY RESOLVES THE ISSUE. THEREFORE, IT SEEMS TO BE MOST LIKELY AN ELECTRICAL PROBLEM. NO DIAGNOSTIC TROUBLE CODES (DTCS) ARE REGISTERED IN THE COMPUTER'S MEMORY, THEREFORE NO INFORMATION EXISTS BY WHICH TO DIAGNOSE THE PROBLEM. I HAVE BEEN TO DEALERS AND THEY HAVE SAID THEY CANNOT HELP ME UNLESS THEY CAN REPLICATE THE PROBLEM IN THE SHOP. AS I SAID, IT HAS ONLY HAPPENED AFTER MANY HOURS OF DRIVING ON LONG TRIPS, WHICH MAKES IT IMPOSSIBLE TO REPLICATE IN THE SHOP. *NM

WHILE DRIVING 65 MPH THE GAS PEDAL DESCENDED TO THE FLOORBOARD AND THE VEHICLE REACHED A SPEED OF 90 MPH. THE CONSUMER TIRED TO GAIN CONTROL OF THE TRUCK BY APPLYING THE BRAKES BUT THEY FAILED. THE CONSUME HAD TO TURN THE ENGINE OFF TO COAST TO THE SIDE OF THE ROAD. BOTH THE MANUFACTURER AND THE DEALERSHIP WERE CONTACTED. PLEASE PROVIDE ANY ADDITIONAL INFORMATION. *NM

THROTTLE STICKS WHILE DRIVING, ESPECIALLY WHILE TRAVELING DOWN HILLS, CONSUMER STATES THAT IT IS DIFFICULT TO BRAKE AND CONTROL THE VEHICLE WHEN THIS HAPPENS. *SLC

THE GAS PEDAL STICKS AT ANY SPEED AND WHEN FIRST STARTING THE TRUCK.THIS HAPPEN BEFORE AND WAS SUPPOSEDLY FIXED, BUT HAS REOCCURRED AGAIN. HAS THERE BEEN A RECALL ON THIS PROBLEM. *AK

WHILE DRIVING DOWN INTERSTATE WENT TO SLOW DOWN, AND CRUISE CONTROL SPEEDED UP. *AK

THROTTLE CONTROL PEDAL STICKS TO THE FLOOR WHEN TRYING TO SPEED UP IN TRAFFIC. *AK

THROTTLE STICKS, CAUSING LOSS OF VEHICLE CONTROL. CAUSE UNKNOWN. *AK

VEHICLE EXHIBITS KNOCKING SOUND COMING FROM PASSENGER'S AREA OR REAR OF VEHICLE, GENERALLY FROM HEAT SHIELD. ALSO, BRAKES EITHER HESITATE/SLAM OR GRIND.IN ADDITION, ROUGH IDLING.

THROTTLE FREEZES WHEN TEMPERATURE IS VERY COLD, CAUSING SUDDEN ACCELERATION.

THROTTLE STICKS, CAUSING VEHICLE TO SURGE. *DSH

EXCESSIVE END PLAY DUE TO AXEL RETAINING CLIP DROPPING OUT OF ITS GROOVE/ALLOWING AXEL TO SLIDE OUT OF AXEL HOUSING. *AK