S15/T15 2WD Jimmy V6-262 4.3L (1991)
Oil Pressure Sender: Customer Interest
Oil Pressure Gauge - Flutters/Reads Full Scale
GMC NUMBER:
91-6A-157
GROUP:
6A Engine Mechanical
DATE:
November, 1991
CORPORATE NUMBER: 138304
SUBJECT:
OIL PRESSURE GAGE FLUTTERS, OR MAY READ HIGH (REPLACE SENSOR)
MODELS:
1990-91 S/T, C/K, M/L, R/V/G/P
Some 1990 and 1991 light duty trucks with gages may experience an oil pressure gage that may flutter or 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.
SERVICE PROCEDURE:
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 from the chart below.
PARTS INFORMATION:
New Oil Pressure Sensor Part Numbers for the 1990-91 models are:
ENGINE MODEL
ENGINE(S)
ENGINE
NEW P/N
REPLACES
VIN CODES
S/T
LN8/L38
A, E
10096178
1647135
LB4/LL2
Z, R
10096179
1647136
M/L
All
B, Z
10096178
1647135
C/K
All Gas
Z, H, K, N
10137652
10068563
Diesel
C, J
10191433
R/V/P
All Gas
Z, H, K, N
10137652
10068563
Diesel
C, J
10191433
G
All Gas
Z, H, K, N
10137652
10068563
Diesel
10191433
Parts are currently available from GMSPO.
WARRANTY INFORMATION:
Use existing labor operation N2220.
