OFFICIAL NHTSA RECALL

94E005000

Service Brakes, Air:supply:hoses, Lines/piping, And Fittings

Reported Mar 8, 1994 · MIDLAND-GRAU

Summary

THE AIR DRYER OF THE AIR BRAKE SYSTEM COLLECTS WATER WHICH CAN FREEZE, CAUSING THE HIGH PRESSURE RELIEF VALVE NOT TO OPEN DURING AN OVERPRESSURE CONDITION AND BLOCK THE AIR LINE FROM THE DRYER TO THE AIR BRAKE SYSTEM. IF THIS CONDITION EXISTS AND IF OVERPRESSURE OF OVER 1500 PSI OCCURS, THE AIR DRYER HOUSING OR THE DESSICANT CARTRIDGE MAY EXPLODE. ALSO, A MANUFACTURING PROCESS CAUSES AN EARLY FATIGUE FAILURE OF THE DESSICANT CARTRIDGE.

Consequence

SHOULD THE AIR DRYER SYSTEM EXPLODE, IT COULD RESULT ININJURIES TO PERSONS NEAR THE SYSTEM.

Remedy

A MODIFICATION KIT OR REPLACEMENT PAP AIR DRYER WILL BE PROVIDED TO CUSTOMERS.

Notes

SYSTEM: BRAKES; AIR DRYER.EQUIPMENT DESCRIPTION: PAP AIR DRYER, PART NOS. N4250, N4250A, DA33100, DA33110,DA333100X, AND DA33110X.NOTES: THE BRAKE SYSTEM'S ONE-WAY CHECK VALVE WILL PREVENT COMPLETE FAILURE OFTHE BRAKE SYSTEM. HOWEVER, IF THE BRAKES ARE USED, THE BRAKE AIR PRESSURE WILLDECREASE AND THE LOW PRESSURE WARNING SYSTEM WILL GIVE AN INDICATION OF LOWPRESSURE BEFORE THE SPRING BRAKES START TO APPLY.IF YOUR VEHICLE IS PRESENTED TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICEDATE AND THE REMEDY IS NOT PROVIDED WITHIN A REASONABLE TIME AND FREE OF CHARGEOR THE REMEDY DOES NOT CORRECT THE DEFECT OR NONCOMPLIANCE, PLEASE CONTACTMIDLAND-GRAU SERVICE CENTER AT 1-816-891-2470. ALSO, CONTACT THE NATIONALHIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-800-424-9393.

This campaign page uses the representative official campaign record. Applicability-specific source variants appear on the linked vehicle pages. Recall counts refer to campaigns, not affected vehicles.

Vehicle entries in this campaign

This is model-level recall history. It does not confirm whether a particular VIN is affected or has received the repair. Check with NHTSA ↗