OIL IN THE AIR CLEANER (NEW PCV VALVE RELEASED)

VEHICLES AFFECTED: 1991 B-CAR WITH TBI-5.OL V8

CONDITION:

Some owners of 1991 B-cars with the 5.OL V8 engine, built before VIN MW142453, may comment about oil in the air cleaner housing.

CAUSE:

Oil vapour from the clean air feed to the right hand rocker cover.

CORRECTION:

A new PCV valve has been released for this application. The part number is #25098542 and it is a CV-914C valve. Air filter replacement may be necessary if excess oil is found saturating the filter.

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.