Regal V6-231 3.8L VIN L SFI (1990)
Oil Pressure Sender: All Technical Service Bulletins
Oil Pressure Gauge - Flutters or Reads High
Bulletin:
91-8-51
Date:
Dec. '91
Ref. No.: 91-284-8
Corp. Ref. No.: 138304
SUBJECT:
OIL PRESSURE GAGE FLUTTERS, OR MAY READ HIGH (REPLACE SENSOR)
MODELS AFFECTED: 1990-91 REGALS WITH GAGES (OPTION UB3 OR U21)
1991 ROADMASTER ESTATE WAGONS
CONDITION:
On vehicles with gages, the oil pressure gage may flutter, or may show unusually high oil pressure (full scale).
CAUSE:
The internal resistance wire in the sensor may not be properly supported, resulting in an intermittent open condition.
CORRECTION:
Check for normal causes of high oil pressure gage readings (high resistance or open circuit), such as a poor ground path caused by loose sensor
mounting, oil cooler adapter loose, or poor electrical connections. If no cause can be found, replace the oil pressure sensor with the correct new part
number listed below.
WARRANTY INFORMATION:
Use existing labor operation N2220.
NEW OIL PRESSURE SENSOR PART NUMBERS
1991 Roadmaster Estate Wagon
10205411
1990 Regal with 3.1L V6 Engine (VIN Code T)
10205410
1991 Regal with 3.1L V6 Engine (VIN Code T)
10205676
1990-91 Regal with 3800 V6 Engine (VIN Code L)
25605389
Parts are currently available from GMSPO.
