ENGINE SURGE CONDITION NEW EGR VALVE & PROM

Models Affected: 1989 GRAND AM W/2.5L ENGINE

This bulletin has been revised to change the scanner I.D. number for the automatic transmission. This bulletin cancels and replaces 89-6-71A issued 5/90.

Some owners of 1989 Grand Am models 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 Manual 16142106 ASLD 0161

Parts are currently available from GMSPO.

WARRANTY INFORMATION:

Labor Operation Number: T1531 Labor Time : 0.5 Hour 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.