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Hercules 1991–1994 Vehicle Speed Control recall

Recalled July 1, 1994 · NHTSA recall 94E020000 · Hercules

Hazard
UNANTICIPATED FULL THROTTLE CONDITIONS CAN OCCUR,RESULTING IN A LOSS OF THROTTLE CONTROL AND POSSIBLE ACCIDENT.
Remedy
THE THROTTLE BODY HAS BEEN REDESIGNED TO INCLUDE A SECONDARY RETURN SPRING ATTACHED DIRECTLY TO THE THROTTLE PLATE SHAFT. THROTTLE STOP ASSEMBLY AND SECONDARY RETURN SPRING LOCKING SCREWS WILL BE TORQUED TO SPECIFICATION AND TREATED WITH A THREAD SEALING COMPOUND SPECIFICALLY DESIGNED FOR THREAD LOCKING APPLICATIONS.
Units
412 units

Description

THE ENGINE THROTTLE PLATE SHAFT CAN BECOME DISCONNECTED FROM THE THROTTLE LEVER ASSEMBLY. THE HEX HEAD LOCKING SCREW BETWEEN THE THROTTLE STOP ASSEMBLY AND THE THROTTLE SHAFT CAN LOOSEN. ALSO, THE HEX HEAD PINCH BOLT BETWEEN THE THROTTLE LEVER AND THE THROTTLE PLATE SHAFT CAN LOOSEN. THE THROTTLE RETURN SPRING CONTROLS THE THROTTLE PLATE POSITION THROUGH THE THROTTLE LEVER. IF EITHER SCREW LOOSENS, THE THROTTLE RETURN SPRINGS NO LONGER CONTROL THE THROTTLE PLATE POSITION.

What to do

THE THROTTLE BODY HAS BEEN REDESIGNED TO INCLUDE A SECONDARY RETURN SPRING ATTACHED DIRECTLY TO THE THROTTLE PLATE SHAFT. THROTTLE STOP ASSEMBLY AND SECONDARY RETURN SPRING LOCKING SCREWS WILL BE TORQUED TO SPECIFICATION AND TREATED WITH A THREAD SEALING COMPOUND SPECIFICALLY DESIGNED FOR THREAD LOCKING APPLICATIONS.

Product
Hercules IMPCO
Manufacturer(s)
Asphalt Hercules Tire & Rubber Co LLC

Source: U.S. National Highway Traffic Safety Administration. Official recall notice on nhtsa.gov

Hercules 1991–1994 Vehicle Speed Control recall | RecallWatchUSA