Unknown or otherRecall 91V-124 · 1988–1991 E-One Hush
E-ONE, INC. recall 91V-124 covers 91 1988–1991 E-One Hush for a unknown or other problem, reported to NHTSA on July 23, 1991.
Source: NHTSA recall 91V124000 and manufacturer quarterly reports. Started by an NHTSA defect investigation.
The problem
IN THE EVENT THAT THE PROPER PUMP ENGAGEMENT SEQUENCE IS NOT FOLLOWED THE "OK TO PUMP" INDICATOR LIGHT WILL ILLUMINATE WHEN THE TRANSMISSION IS IN A DRIVE GEAR.
The fix
AN ELECTRONIC CIRCUIT AND MODULE WILL BE INSTALLED TO LOCK-OUT THE PUMP THROTTLE ON ELECTRONICALLY CONTROLLED TRANSMISSIONS IF THE CORRECT LOCK-OUT PROCEDURES ARE NOT CARRIED OUT.
SYSTEM: FIRE TRUCK WATER PUMPS.VEHICLE DESCRIPTION: FIRE TRUCKS WITH ALLISON ATEC ELECTRONIC TRANSMISSIONS,ALLISON MODELS HT741 AND MT648.CONSEQUENCE OF CONDITION: UNLESS THE TRANSMISSION IS PLACED IN THE LOCK-UP MODEBEFORE THE PUMP IS ENGAGED, THE ENGINE CAN DEVELOP SUFFICIENT POWER TO OVERRIDETHE TRUCKS PARK BRAKES, RESULTING IN VEHICLE MOVEMENT WITHOUT PRIOR WARNING ANDA POSSIBLE ACCIDENT.
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 July 1, 1988 to May 1, 1991. Not every vehicle in these model years is included; check by VIN.
The investigation behind this recall
- FALSE PUMP INDICATOR LIGHTNHTSA