Century V6-173 2.8L (1986)
PROM - Programmable Read Only Memory: Customer Interest
Engine - Surge or Poor Driveability
Bulletin 86-6E-20
Date
Jan. '87
Ref. No. 86-197-6E
SUBJECT:
ENGINE SURGE OR POOR DRIVEABILITY
MODELS AFFECTED: 1986 CENTURYS WITH LE2 2.8L V-6 ENGINES (VIN CODE X), 4 SPEED AUTOMATIC TRANSMISSIONS, AND
FEDERAL EMISSIONS
Customer driveability comments of engine surge may occur on some 1986 Centurys equipped with 2.8L V-6 carbureted engines. If normal service
procedures in Service Manual (Section 6E1, Section B - surges and/or chuggle) do not correct the condition, a new service PROM, Part No. 1228327,
with a revised calibration is now available from GMSPO.
Use applicable Labor Time and Labor Operation Number for PROM replacement.
