Firebird V6-191 3.1L (1990)
Oil Pressure Sender: All Technical Service Bulletins
Oil Pressure Gauge - Flutters/Reads High
Bulletin Number:
91-8-19A
Reference Number:
138304
Publish Date:
11/91
Subject:
OIL PRESSURE GAGE FLUTTERS, OR MAY READ HIGH (REPLACE SENSOR)
Models
1990-91 6000, FIREBIRD, SUNBIRD,
Affected:
GRAND AM, GRAND PRIX AND
TRANS SPORT MODELS
This bulletin is being revised to include Trans Sport models in the title of the bulletin. This bulletin cancels and replaces bulletin 91-8-19 issued 11/91.
Please discard bulletin 91-8-19.
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 from the attached chart.
Warranty Information:
Use existing labor operation N2220.
NEW OIL PRESSURE SENSOR PART NUMBERS 1990 - 1991 MODELS
Engine
Carline
Engine(s)
VIN Codes
New P/N
Replaces
6000
LR8(90)
R
10045775
Existing
LR8(91)
R
10205676
10096200
LHO(90)
T
10205410
10096199
LHO(91)
T
10205676
10096200
Firebird
LHO
T
10205410
1643535
L03/LB9/L98
E,F,8
10205411
10096207
NEW OIL PRESSURE SENSOR PART NUMBERS
1990 - 1991 MODELS
Engine
Carline
Engine(s)
VIN Codes
New P/N
Replaces
Sunbird exc.
LD2/LGO
K,M,T,U
10191433
1647135
And Grand Am
LD2/LGO
A,D
22578692
22542436
Grand Prix
LHO(90)
T
10205410
10096199
LHO(91)
T
10205676
10096200
LQ1
X
10207183
10137630
LD2
D
22578692
22542436
Trans Sport
LG6(90)
D
10205410
10096199
LG6(91)
D
10205676
10096200
Parts are currently available from GMSPO.
