VEHICLE DESCRIPTION: HEAVY DUTY TRUCK. THE SHOULDER BOLT WHICH HOLDS THE GROTE TURN SIGNAL SWITCH CASE AND COMPONENTS TOGETHER CAN LOOSEN RESULTING IN THE TURN SIGNAL MALFUNCTIONING.

Consequence & remedy

Consequence: IF THE TURN SIGNAL FUNCTION IS LOST, FOLLOWING MOTORISTS WOULD NOT BE AWARE OF THE TURNING VEHICLE, INCREASING THE RISK OF A VEHICLE CRASH.

Remedy: DEALERS WILL INSPECT THESE VEHICLES AND TIGHTEN ANY LOOSE BOLTS AND IN THE TURN SIGNAL SWITCH WITHIN 2 YEARS FROM THE DATE OF THE RECALL NOTIFICATION LETTER. THE SHOULDER BOLT WILL BE REMOVED, CLEANED, AND REINSTALLED WITH LOCTITE. OWNERS CAN ALSO REQUEST LOCTITE AND REPAIR INSTRUCTIONS SO THEY CAN FIX THE VEHICLES THEMSELVES.

96V232000 · Engine And Engine Cooling:cooling System:fan

Nov 13, 1996

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH HORTON FAN DRIVES. THE FAN DRIVE CONTROL SYSTEM WAS RECONFIGURED WHICH RESULTED IN A SIGNIFICANT INCREASE IN THE DEMAND FOR FAN ACTIVATION AND ASSOCIATED STRESS TO ELECTRICAL AND MECHANICAL COMPONENTS. VARIOUS COMPONENT FAILURE MODELS, COMBINED WITH CHARACTERISTICS OF THE FAN CLUTCH AND ITS BEARINGS, CAN CAUSE FAN CLUTCH BEARINGS TO FAIL PREMATURELY AND RESULT IN A LOCKED FAN.

Consequence & remedy

Consequence: IF THE FAN IS LOCKED, THE THE SYSTEM CALLS FOR THE FAN TO BE ON, THE FAN CLUTCH WILL SLIP, GENERATE HEAT, AND UNLESS RELEASED, WILL RESULT IN A FIRE.

Remedy: DEALERS WILL REPLACE THE FAN CLUTCH DRIVE DISC WITH ONE THAT INCORPORATES A THERMALLY ACTIVATED PRESSURE RELIEF.

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.