Toyota 4 Runner 1988–1995 — technical service bulletin
Bulletin EG00298 · NHTSA communication 600350 · issued Feb 13, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1988–1995
model years
16
vehicle entries
Official summary
Subject regarding cylinder head installation for vehicles equipped with the 3vz v6 engine. *yc
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.