ENGINE SURGE CONDITION NEW EGR VALVE & PROM

MODELS AFFECTED: 1989 SKYLARKS WITH 2.5L ENGINES

THIS BULLETIN HAS BEEN REVISED TO CHANGE THE PROM I.D. NUMBER. PLEASE DISCARD BULLETIN 89-6E-23 AND 89-6E-23A (CORPORATION NO. 936525R). THE PROM IN 89-6E-23 WOULD NOT ALLOW THE CRUISE CONTROL LIGHT TO COME ON.

Some owners of 1989 Skylarks may comment of a highway engine surge condition. This condition may be repaired with the installation of a new EGR Valve Package, P/N 17112238 (which contains EGR valve, P/N 17090078 and a gasket). A new Calibration PROM must be installed with the EGR valve package as a set. The new Calibration PROM is identified as follows.

PROM Package Broadcast Scanner Transmission Part Number Code I.D.

Automatic 16152997 AUTF 3001

Parts are currently available from GMSPO.

WARRANTY INFORMATION

Labor Operation Number: T1531 Labor Time: 0.5 Hr. Trouble Code: 92

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.