Ford E-150 1996–1998 — technical service bulletin
Bulletin 99131 · NHTSA communication 606484 · issued Jun 28, 1999
Technical service bulletin
communication type
Engine and Engine Cooling
component
1996–1998
model years
16
vehicle entries
Official summary
Concerns with engine coolant leaking into engine oil on some vehicles. *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.