Service brakes, air: controls, pedals and linkages (Ford)
Vehicle recall 90V-121. NHTSA received FORD MOTOR COMPANY’s report on Jun 25, 1990.
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The short answer
NHTSA received FORD MOTOR COMPANY’s report on Jun 25, 1990. Copied from NHTSA on Oct 28, 2026.
Every line below is in NHTSA’s own words, with its source beside it.
What’s wrong with it?
IN THE EVENT OF PRESSURE LOSS IN THE SUPPLY RESERVOIR,A DEFECTIVE CHECK VALVE WOULD ALLOW PRESSURE EQUALIZATION BETWEEN PRIMARY ANDSECONDARY SERVICE RESERVOIRS, PRESENTING THE POTENTIAL FOR LOSS OR ABSENCE OFFRONT BRAKING ABILITY, WHICH COULD CAUSE LOSS OF CONTROL AND AN ACCIDENT.
SECONDARY SERVICE RESERVOIR AIR CHECK VALVES MAY NOT SEAT PROPERLY DUE TO A MECHANICAL INTERFERENCE CONDITION BETWEEN A CIRCULAR BRASS GUIDE AND THE WALL OF A CYLINDRICAL FERRULE IN WHICH THE BRASS GUIDE IS INTENDED TO MOVE FREELY.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- NHTSA’s part: Service brakes, air: controls, pedals and linkages.
What should you do?
INSTALL REVISED DESIGN SECONDARY SERVICE RESERVOIR CHECK VALVE COMPONENTS.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- How to reach the firm: SYSTEM: AIR PRESSURE CHECK VALVES.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS AND CHASSIS CABS.
- Check a vehicle by its VIN at NHTSA: the recalls still open on it are listed there.
Which ones are recalled?
NHTSA counts 15,260 vehicles potentially involved, across everything this recall names.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
- Ford LT9000and 1989 and 1990, before the model years listed here
- Ford LS8000and 1989 and 1990, before the model years listed here
- Ford LNT9000and 1989 and 1990, before the model years listed here
- Ford LTS9000and 1989 and 1990, before the model years listed here
- Ford LN7000and 1989 and 1990, before the model years listed here
- Ford LN8000and 1989 and 1990, before the model years listed here
- Ford LNT8000and 1989 and 1990, before the model years listed here
- Ford LA9000and 1989 and 1990, before the model years listed here
- Ford LTA9000and 1989 and 1990, before the model years listed here
- Ford LL9000and 1989 and 1990, before the model years listed here
- Ford LT8000and 1989 and 1990, before the model years listed here
- Ford LTS8000and 1989 and 1990, before the model years listed here
- Ford L9000and 1989 and 1990, before the model years listed here
- Ford LS9000and 1989 and 1990, before the model years listed here
- Ford L8000and 1989 and 1990, before the model years listed here
- Ford LN9000and 1989 and 1990, before the model years listed here
- Ford LTL9000and 1989 and 1990, before the model years listed here
Who is recalling it?
- Made by FORD MOTOR COMPANY.
NHTSA, Recalls flat file before 2010. Released Oct 28, 2026. Updated daily.
What the record doesn’t say
- NHTSA’s recall file doesn’t say whether anyone was hurt.
- Whether one vehicle or seat has been fixed: only its maker, or NHTSA’s lookup with a VIN, can say.
- This recall names only model years before 2015, which have no pages here. Your VIN, at NHTSA, says which recalls are open on a vehicle.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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National Highway Traffic Safety Administration, Recalls flat file before 2010 (FLAT_RCL_PRE_2010).
Released Oct 28, 2026 and checked Oct 28, 2026. Updated daily. Public domain (U.S. Government work).
Vehicle, car seat, tire and vehicle equipment recalls, owner complaints and crash ratings are from the National Highway Traffic Safety Administration (NHTSA). Copied on Oct 28, 2026.