Ford Explorer 2001 — technical service bulletin
Bulletin 14823 · NHTSA communication 619317 · issued Apr 1, 2001
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001
model years
2
vehicle entries
Official summary
Some vehicles equipped with the 4.0 sohc engine may exhibit a primary chain rattle noise between 2000 - 3000 rpm (sometimes described as a spark knock-type noise). *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.