THE BASE OF THE ELECTRONIC ACCELERATOR PEDAL IS MADE OF DIE CAST ALUMINUM. THE BASE MOUNTS DIRECTLY TO THE CAB FIREWALL. THE CAB FIREWALL IS NOT RIGID ENOUGH OR FLAT ENOUGH AT THE MOUNTING SURFACE, CAUSING STRESS ON THE ACCELERATOR BASE THAT WILL CAUSE THE MOUNTING PADS ON THE BASE OF THE PEDAL ASSEMBLY TO FAIL AND TOTALLY SEPARATE FROM THE FIREWALL.

Consequence & remedy

Consequence: THIS CAN CAUSE LOSS OF SPEED CONTROL, DRIVER DISTRACTION, AND RESULT IN AN ACCIDENT.

Remedy: DEALERS WILL INSPECT THE ACCELERATOR PEDAL ASSEMBLY AND INSTALL A PLATE BETWEEN THE ACCELERATOR MOUNTING BASE AND THE FIREWALL ON THOSE UNITS WHERE THE BASE IS NOT BROKEN AND HAS NO VISIBLE SIGNS OF A CRACK. IF THE BASE IS BROKEN OR CRACKED, THE ACCELERATOR ASSEMBLY WILL BE REPLACED WITH A NEW REDESIGNED ACCELERATOR PEDAL ASSEMBLY.

94V144000 · Engine And Engine Cooling:engine:gasoline:turbo/supercharger

Aug 2, 1994

FOUR COMPRESSION BACKPLATE RETAINING FASTENERS ON THE TURBO-CHARGER WERE TORQUED ONLY HAND TIGHT. THIS ALLOWS THE FASTENERS TO LOOSEN, AND CAUSES OIL TO LEAK INTO THE COMPRESSOR AIR SIDE OF THE TURBO-CHARGER WHICH, WHEN COUPLED WITH THE HEAT PRECIPITATED BY THE COMPRESSOR AND THE MIXING ACTION OF THE COMPRESSOR WHEEL, CAN RESULT IN AN AIR/OIL MIXTURE THAT FUELS THE ENGINE.

Consequence & remedy

Consequence: WHEN THIS OCCURS, ENGINE RUN-ON AND SUBSEQUENT LOSS OF OPERATOR CONTROL VIA THE NORMAL THROTTLE MECHANISM CAN OCCUR, WHICH COULD RESULT IN A VEHICLE ACCIDENT.

Remedy: REPLACE THE SUSPECT TURBO-CHARGER WITH A NEW TURBO-CHARGER.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

No exact-year investigations in this snapshot.