Ford Excursion 2003–2004 — technical service bulletin
Bulletin 0494 · NHTSA communication 10008549 · issued May 17, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2004
model years
7
vehicle entries
Official summary
Turbo-induced exhaust moan/drone at 1600-1800 rpm on 6.0l built prior to 9/29/2003. *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.