Ford F Super Duty 1999 — technical service bulletin
Bulletin 4657 · NHTSA communication 615193 · issued Aug 1, 1998
Technical service bulletin
communication type
Vehicle Speed Control
component
1999
model years
1
vehicle entries
Official summary
Some trucks equipped with the 7.3l dit may exhibit a lack of power, poor fuel economy, malfunction indicator lamp light on, no / hard start or runs rough after driving in normal rain conditions. *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.