# NHTSA recall 84V035000

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

- Published by: NHTSA \(United States\)
- Campaign number: 84V035000
- Manufacturer: MACK TRUCKS, INCORPORATED
- Reported: 1984\-03\-23
- Component: SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
- Units potentially affected: 850

## What is wrong

A MANUFACTURING ERROR RESULTED IN THE INSTALLATION OF CARBON STEEL SPRINGS IN SOME DUAL\-COMPARTMENT AIR RESERVOIR CHECK VALVES. CARBON STEEL SPRINGS ARE INADEQUATE FOR THIS APPLICATION BECAUSE THEY ARE SUBJECT TO SEVERE CORROSION AND SUBSEQUENT FAILURE OF THE CHECK VALVE.


## The remedy

THE CARBON STEEL SPRING WILL BE REPLACED WITH A STAINLESS STEEL ONE.


## Notes

VEHICLE DESCRIPTION: HEAVY TRUCKS.SYSTEM: SERVICE BRAKES; DUAL COMPARTMENT AIR RESERVOIR CHECK VALVE.CONSEQUENCES OF DEFECT: IF THIS CHECK VALVE FAILURE WERE COMBINED WITH ASEVERED LINE IN THE PRIMARY AIR SYSTEM, COMPLETE LOSS OF BRAKES AND POSSIBLEVEHICLE CRASH COULD OCCUR.


## Vehicles this campaign lists

- [1982 MACK MH](/makes/mack/mh/1982/recalls.md). Built 1982\-04\-01 to 1983\-11\-01.
- [1983 MACK MH](/makes/mack/mh/1983/recalls.md). Built 1982\-04\-01 to 1983\-11\-01.

## Check a VIN

- [NHTSA recall lookup by VIN, United States](https://www.nhtsa.gov/recalls)
- [Transport Canada recall search, Canada](https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng)

JSON: [/v1/recalls/nhtsa/84V035000](/v1/recalls/nhtsa/84V035000)

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