C 2500 Truck 2WD V6-262 4.3L VIN Z (1992)
accumulating at least 200 miles, call the appropriate marketing division technical assistance group.
CORRECTION - CATEGORY B:
Valve Train Chatter, Tick, or Click.
For 1992 or 1993 vehicles equipped with a Romulus built (adjustable lash) LB4 (VIN Z 4.3L V6) engine, adjust valve lash. Bulletin 376107 provides
information on this procedure and on how to identify Romulus-produced engines.
Investigation of "cold knock" is continuing. Updates will continue to be provided when available.
Parts are expected to be available on August 30, 1993.
WARRANTY INFORMATION:
Labor Operation:
J0950 - Filter and Oil Replace
Labor Time:
Use published labor time.
For 1992 LB4 vehicles:
Labor Operation:
T0500 - PROM replace
Labor Time:
0.5 hours