Disc: chamberRecall 78V-215 · 1974–1977 Southwest Southwest
SOUTHWEST TRUCK BODY CO. recall 78V-215 covers 781 1974–1977 Southwest Southwest for a disc: chamber problem, reported to NHTSA on October 10, 1978.
Source: NHTSA recall 78V215000 and manufacturer quarterly reports. Started by an NHTSA defect investigation.
The problem
ANTI-LOCK BRAKE FAILURE COULD OCCUR DUE TO EXPOSURE TO HIGH CONCENTRATIONS OF FLUID CONTAMINANTS WHICH MAY COLLECT IN THE TRAILER BRAKING SYSTEM. THIS CONDITION COULD RESULT IN THE PISTON STICKING IN THE TRAILER ANTI-LOCK VALVE. CONSEQUENTLY, NO AIR WILL BE DELIVERED TO THE BRAKE CHAMBERS SUPPLIED BY THE ANTI-LOCK VALVE. LACK OF AIR TO THE AIR CHAMBERS MAY RESULT IN A "NO BRAKE" CONDITION ON THE AFFECTED AXLE(S).
The fix
DEALER WILL INSPECT AND, IF NECESSARY, INSTALL REPLACEMENT VALVES WITHOUT CHARGE TO OWNER.
VEHICLE DESCRIPTION: TRUCKS.SYSTEM: SERVICE BRAKES; ANTI-LOCK AIR VALVES.CONSEQUENCES OF DEFECT: LOSS OF BRAKING ACTION COULD RESULT IN LOSS OF VEHICLECONTROL AND AN ACCIDENT.NOTE: ANY FLUIDS SHOULD BE DRAINED FROM THE TRAILER BRAKE SYSTEMS DAILY. FLUIDSSHOULD NOT BE ADDED DIRECTLY INTO THE TRAILER BRAKE LINES.
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 October 1, 1974 to September 1, 1977. Not every vehicle in these model years is included; check by VIN.
The investigation behind this recall
- AIR CON VALVE STICKINGNHTSA