Ford Ranger 2004–2005 — technical service bulletin
Bulletin 0558 · NHTSA communication 10014691 · issued Mar 21, 2005
Technical service bulletin
communication type
Vehicle Speed Control
component
2004–2005
model years
2
vehicle entries
Official summary
Surging sensation during cruise at steady speeds of 35-50 mph (56-80 km/h) - 4.0l engine. *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.