Ford Explorer Police Intercept 2020 — technical service bulletin
Bulletin 20B21-A · NHTSA communication 10174386 · issued Apr 24, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020
model years
3
vehicle entries
Official summary
In all of the affected vehicles, there are shallow pressed valve seats in the cylinder heads. This may lead to a rough idle, engine misfires with a reduction in power/torque and a check engine/wrench light illuminated.
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.