Mazda 626 1992–1996 — technical service bulletin
Bulletin 004/97B · NHTSA communication 52498 · issued May 19, 1997
Technical service bulletin
communication type
Engine and Engine Cooling
component
1992–1996
model years
15
vehicle entries
Official summary
Partial engine replacement (pcv system modification). *tw
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.