Vehicle recall 93V070000 · April 26, 1993

1992 Freightliner Freightliner

The exhaust port in the up position allows water to enter the air brake system, which can block the air brake system in freezing conditions.

Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.

Summary: The exhaust port in the up position allows water to enter the air brake system, which can block the air brake system in freezing conditions.
Consequence: Blockages in the air brake system can block the exhaustfrom the brake chambers after service brake application, causing the brakes todrag and possibly overheat on either side of the drive axles. This couldincrease stopping distance and result in a vehicle accident.
Remedy: Invert the brake valves so the exhaust ports are down.
Notes: System: brakes.vehicle description: heavy trucks with traction control that have crossmembermounted brake valves positioned with the exhaust port up.

Recall details

NHTSA campaign: 93V070000
Reported to NHTSA: April 26, 1993
Filed by: FREIGHTLINER CORP.
Owner notification: November 11, 1993
Vehicles potentially affected: 160
Initiated by: the manufacturer
Components: Service brakes, air

Recall 93V070000 on nhtsa.gov, with the manufacturer’s documents

Vehicles covered

As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.

Freightliner Freightliner (1992): 1992

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