The defect
THE INVOLVED VEHICLES HAVE THE FOLLOWING NON-COMPLIANCES: THE LOW AIR WARNING SIGNAL MAY NOT ACTIVATE UNTIL THE SERVICE RESERVOIR PRESSURE IS BELOW 60 PSI. IN ADDITION, THE BRAKE RELEASE TIME MAY EXCEED 0.55 SECONDS AT THE RIGHT FRONT WHEEL, WHICH CONSTITUTES A NON-COMPLIANCE TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS".
The remedy
DEALER WILL ADJUST THE PIN SWITCH TO THE PROPER PRESSURE TO BRING THE VEHICLE INTO COMPLIANCE WITH SAFETY STANDARD NO. 121.
NHTSA's own wording · initiated by OVSC
Vehicles covered
| Model | Model years |
|---|
Components: SERVICE BRAKES, AIR
Other service brakes, air recalls in 1979
19 of the 274 recall campaigns reported to NHTSA in 1979 concerned the service brakes, air; TRANSPORTATION MFG. CORP. filed 17 campaigns in all.
| 79V250000 19 Nov 1979 | GRUMMAN FLXIBLE CORP. |
| 79V253000 15 Nov 1979 | HENDRICKSON MFG. CO. |
| 79V248000 15 Nov 1979 | GRUMMAN FLXIBLE CORP. |
| 79V241000 2 Nov 1979 | GRUMMAN FLXIBLE CORP. |
| 79V211000 18 Sept 1979 | INTERNATIONAL HARVESTER |
| 79V216000 13 Sept 1979 | PACCAR, INCORPORATED |
| 79V187000 8 Aug 1979 | GENERAL MOTORS CORP. |
| 79V178000 1 Aug 1979 | MOTOR COACH IND., INC. |
NHTSA recalls (public domain) · all recalls of 1979