OIL PRESSURE GAUGE READS LOW (MAYBE INCORRECT GAUGE)

OIL PRESSURE GAUGE READS LOW

VEHICLES AFFECTED: 1987 BUICK AND OLDSMOBILE "J" SERIES WITH GAUGE ----------------- PACKAGE

Some 1987 Buick Skyhawk and Oldsmobile Firenza models equipped with gauge packages may exhibit a condition where the oil-pressure gauge reads low pressure, especially when the engine is idling at low speed when fully warmed up.

This condition may be caused by an oil-pressure/volts gauge in the instrument panel which is different than the gauge required for use with the new oil pressure sender put into production on 1987 models. Refer to illustration.

When this condition is encountered, the oil-pressure/volts gauge should be replaced using the following new part numbers:

Division Old Part Number New Part Number -------- --------------- ---------------

Buick 25059159 25089865 Buick 25026120 25089867 Buick 25026409 25089868

Oldsmobile 25026130 25089871

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.