Oil Pressure Gauge - Flutters/Reads High

9232chevy01

Number: 91-451A-8C

Section: 8C

Date: MARCH 1992

Corporate Bulletin No.: 138304R

ASE No.: A6


Subject:
OIL PRESSURE GAGE FLUTTERS, OR MAY READ HIGH


Model and Year:
1990 CELEBRITY
1990-91 CAPRICE, CAMARO, CAVALIER, CORSICA, BERETTA, LUMINA AND CORVETTE
1990-91 LUMINA (APV)
1990-91 C/K, R/V, S/T, G, M/L, P


THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 91-451-8C, DATED NOVEMBER 1991. PART NUMBER INFORMATION FOR THE P TRUCK HAS BEEN UPDATED AND DIESEL ENGINES ON TRUCKS. ALL COPIES OF 91-451-8C SHOULD BE DISCARDED.

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 resistence 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 [1][2]oil pressure sensor with the correct new part number from the attached chart.

Warranty Information:

Use existing labor operation N2220.








NEW [1][2]OIL PRESSURE SENSOR PART NUMBERS
1990-91 Models