COLD ENGINE SPEED SAG W/ A/T ENGAGEMENT-PROM P/N PROVIDED. Buick Century 1985

VEHICLES AFFECTED: 1985 'A-F-N and P' Series

Some 1985 vehicles equipped with 2.5L TBI engines and automatic transmissions may exhibit a sag in engine speed upon gear engagement after a cold start. Should such a condition be encountered that cannot be repaired by published service procedures, a new PROM may be installed (parts listed below).

PART MODEL NUMBER ----- ------

CHEVROLET OLDSMOBILE PONTIAC BUICK --------- ---------- ------- -----

Celebrity Ciera 6000 Century (With 2.39 (With 2.39 (With 2.39 (with 2.39 16051305 axle ratio) axle ratio) axle ratio) axle ratio)

Celebrity Ciera 6000 Century (With 2.84 (With 2.84 (With 2.84 (With 2.84 16051314 axle ratio) axle ratio) axle ratio) axle ratio)

CAMARO - - FIREBIRD - - 16051323

CALAIS GRAND AM SOMERSET 16051333

FIERO -- 16051388

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.