Vehicle speed control: springsRecall 81V-156 · Western vehicles
MACK TRUCKS, INCORPORATED recall 81V-156 covers 186 Western vehicles for a vehicle speed control: springs problem, reported to NHTSA on December 29, 1981.
Source: NHTSA recall 81V156000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
THE THROTTLE RETURN SPRINGS ON THE AFFECTED VEHICLES PROVIDE LESS THAN THE REQUIRED TORQUE, CAUSING A SLUGGISH RETURN OF THE THROTTLE TO THE IDLE POSITION AFTER THE ACCELERATOR PEDAL IS RELEASED. THIS FAILS TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 124, "ACCELERATOR CONTROL SYSTEMS".
The fix
NEW ANCHOR BRACKETS AND SPRING EXTENSIONS FOR THE THROTTLE RETURN SPRINGS, WILL BE INSTALLED AT CORRECTED LOCATIONS WITHOUT CHARGE TO OWNER.
VEHICLE DESCRIPTION: TRUCKS.SYSTEM: FUEL; THROTTLE RETURN SPRINGS.CONSEQUENCES OF DEFECT: A FAILURE OF THE ACCELERATOR FUNCTION TO RESPONDNORMALLY COULD CAUSE AN ACCIDENT IN CERTAIN TRAFFIC SITUATIONS.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
Vehicles in this recall
Built from November 1, 1978 to August 1, 1981. Not every vehicle in these model years is included; check by VIN.