Ford F Super Duty 1989–1995 — technical service bulletin
Bulletin 985A50 · NHTSA communication 613021 · issued Mar 18, 1998
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
1989–1995
model years
7
vehicle entries
Official summary
Experiencing excessive brake pedal travel accompanied by reduced braking effectiveness when the vehicle is operated at an idle for extended periods, in hilly terrain, in high ambient temperatures and / or when the vehicle is located in excess of its gross vehcle weight rating (gvwr). *tt
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.