Century Estate Wagon L4-151 2.5L VIN R TBI (1987)
PROM - Programmable Read Only Memory: Customer Interest
Engine - Sag/Hesitation or Poor Driveability
Bulletin 87-6E-6
Date
Jan. '87
Ref. No, 87-058-6E
SUBJECT:
ENGINE SAG, HESITATION, OR POOR DRIVEABILITY
MODELS AFFECTED: 1987 CENTURYS WITH LR8 2.5L L4 ENGINES (VIN CODE R), FEDERAL AND CALIFORNIA EMISSIONS
Some 1987 Centurys equipped with 2.5L LR8 engines may exhibit driveability concerns on a tip-in maneuver from a standing start with engine at
operating temperature, or immediately after a cold start at ambient temperatures of 80~ to 85~ F.
If normal diagnostic procedures in Service Manual (Section 6E1, Section B) have been tried and the driveability concerns have not been resolved, a new
service PROM from GMSPO, Part No. 16072835, should be installed.
Use applicable Labor Time and Labor Operation Number for PROM replacement.