Ford Explorer 1999–2000 — technical service bulletin
Bulletin 8420 · NHTSA communication 612845 · issued Mar 1, 2000
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999–2000
model years
4
vehicle entries
Official summary
Some vehicles built through 11/22/99 and equipped with 4.0l sohc engine may exhibit various driveability conditions that lead to idle air control (iac) valve replacement. *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.