Ford L SERIES recalls by model year

Reported: 1979-03-29 (March 29, 1979) · Model years: 1975, 1976, 1977, 1978, 1979

CERTAIN AIR BRAKE ANTI-LOCK MODULATORS COULD MALFUNCTION DURING OPERATION OF THE ANTI-LOCK SYSTEM. A NYLON PISTON WITHIN THE MODULATOR AIR VALVE SYSTEM CAN SWELL FROM EXPOSURE TO SYSTEM CONTAMINANTS. CONTINUED EXPOSURE MAY CAUSE THE PISTON TO SWELL TO THE EXTENT THAT INTERFERENCE WITH THE CYLINDER WALL WILL RESULT, CAUSING MOMENTARY STICKING OR A PERMANENT JAM. THIS CAN RESULT IN TEMPORARY OR PERMANENT LOSS OF BRAKING FOR THE AFFECTED AXLE.

Remedy: THE PISTONS IN THE VALVE PORTION OF THE MODULATORS WILL BE REPLACED WITH PISTONS THAT DO NOT SWELL WHEN EXPOSED TO AIR BRAKE SYSTEM CONTAMINANTS.

Reported: 1985-12-20 (December 20, 1985) · Model years: 1984, 1985

THE HYDRAULIC PARKING BRAKE CONTROL VALVE MAY INADVERTENTLY ACTIVATE DUE TO MOMENTARY PRESSURE DISRUPTIONS WITHIN THE SYSTEM AND CAUSE THE PARKING BRAKE TO BE APPLIED, STOPPING OR SLOWING THE TRUCK UNEXPECTEDLY. CONSEQUENCE OF DEFECT: THIS UNEXPECTED STOPPING OR SLOWING OF THE TRUCK MAY INCREASE THE RISK OF A REAR END COLLISION SINCE THE BRAKE (STOP) LIGHTS ARE NOT ACTIVATED. ALSO, ON CERTAIN ROAD CONDITIONS THIS OCCURRENCE MAY RESULT IN LOSS OF VEHICLE CONTROL WHICH WOULD LEAD TO AN ACCIDENT.

Remedy: REPLACE THE PUSH-PULL TYPE BRAKE CONTROL VALVE WITH NEW OVER-CENTER CAM TYPE VALVES.

Reported: 1989-11-07 (November 7, 1989) · Model years: 1990

INTERMEDIATE STEERING SHAFTS HAVE AN INADEQUATE LENGTH OF SPLINE ENGAGEMENT AND MAY EXHIBIT EXCESSIVE SIDE-TO-SIDE FREEPLAY MOVEMENTS.

Consequence: EXCESSIVE WEAR ON SPLINES COULD CAUSE LOOSENESS IN THESTEERING WHEEL AND COULD RESULT IN STEERING SHAFT DISENGAGEMENT, LOSS OFSTEERING CONTROL, AND AN ACCIDENT.

Remedy: INSTALL NEW DESIGN INTERMEDIATE STEERING SHAFT ASSEMBLY.

Reported: 1990-01-22 (January 22, 1990) · Model years: 1990

STEERING COLUMNS CONTAIN AN INCORRECT AND POSSIBLY UNDER TORQUED COUPLING TO STEERING COLUMN CLAMPING BOLT.

Consequence: LOW TORQUE ON CLAMPING BOLT COULD RESULT IN SEPARATION OF COUPLING FROM THE STEERING COLUMN OR WEAR ON THE SPLINES AND COULD CAUSE LOSS OF STEERING CONTROL WITH POTENTIAL FOR AN ACCIDENT.

Remedy: INSTALL GRADE EIGHT FASTENERS WITH PROPERLY TORQUED NUTS.

Reported: 1997-09-09 (September 9, 1997) · Model years: 1994

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS. THE AIR BRAKE RESERVOIR ASSEMBLIES HAVE POOR WELD FUSION AT THE WELDED SEAMS IN THE RESERVOIRS. THIS COULD RESULT IN REPUTURE OF THE SEAM AND SUBSEQUENT RELEASE OF THE COMPRESSED AIR.

Consequence: RAPID RELEASE OF THE COMPRESSED AIR CAN CAUSE DAMAGE TO THE CAB FLOOR OR SURROUNDING COMPONENTS AND COULD RESULT IN PERSONAL INJURY. LOSS OF PRESSURE FROM THE PRIMARY RESERVOIR WOULD ALSO RESULT IN LOSS OF AIR SUPPLY TO THE FRONT BRAKES INCREASING THE RISK OF A VEHICLE CRASH.

Remedy: DEALERS WILL REPLACE THE PRIMARY AND SECONDARY AIR BRAKE RESERVOIRS.