OFFICIAL NHTSA RECALL

88V171000

Service Brakes, Air:supply:low Pressure Warning:switch

Reported Nov 1, 1988 · E-ONE, INC.

Summary

USE OF THE AIR HORN CAN CAUSE THE AIR PRESSURE TO DROP BELOW 85 PSI.

Consequence

IF AIR PRESSURE DROPS BELOW 85 PSI WHILE THE VEHICLE ISBEING DRIVEN THE REAR BRAKE SPRING CHAMBERS WILL START TO APPLY CAUSING THEREAR BRAKE DRUMS TO OVERHEAT.

Remedy

INSTALL PRESSURE PROTECTION VALVES IN ALL AIR HORN CIRCUITS.

Notes

SYSTEM: AIR PRESSURE/BRAKES.VEHICLE INFORMATION: AMBULANCE UNITS WITH ROCKWELL U170 AND S170 AXLES.

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

1987 Emergency One Ambulance 1986 Emergency One Ambulance 1985 Emergency One Ambulance 1984 Emergency One Ambulance

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