ENGINE SURGE MAY NEED SERVICE PROM

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.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.