OIL PRESSURE GAUGE ERRATIC OR READS HIGH OIL PRESSURE

SUBJECT: 3800 OIL PRESSURE ERRATIC/DISPLAYS HIGH (NEW SENDER)

VEHICLES AFFECTED: 91 'C' W/UB3, 91 'E' 90-91 'W' W/UB3/UB2, 91 'A' W/3300-OLDS ---------------------------------------------------------------------------

* This bulletin is being revised to change the Tool Information section.

CONDITION:

---------- Some of the above listed vehicles may experience a condition where the oil pressure gage may be erratic or display very high pressures. This is due to an internal intermittent contact within the sending unit.

CORRECTION:

----------- To correct the above condition, replace the oil pressure sender with part number #25605389.

TOOL INFORMATION:

To install the sensor, use J39228 that was mailed as part of the 1991 Essential Tool Package.

WARRANTY INFORMATION:

Labour Operation No.: T5248 Labour Time: .3 hr. (Park Ave./Ultra, Riviera/Reatta) .6 hr. (Regal)

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.