Variable Fuel Vehicle - Supplemental Manual Revision: Overview

9216chevy09

Number: 91-317-6A

Section: 6A

Date: MAY 1991

Corporate Bulletin No.: 116514


Subject:
VARIABLE FUEL VEHICLE (VFV) ONLY
SUPPLEMENTAL MANUAL REVISION


Model and Year:
1991 LUMINA WITH 3.1L ENGINE


SERVICE UPDATE

This bulletin revises the 1991 Chevrolet Lumina Service Manual Supplement Variable Fuel Vehicle (VFV) ONLY. This information applies to the following sections:

ENGINES (SECTION 6A5). Revised torque specifications and text changes found on Pages 6A5-16, 6A5-17, 6A5-18, 6A5-19, 6A5-25, 6A5-30, 6A5-33, 6A5-39, 6A5-42, 6A5-44, 6A5-45, 6A5-48, 6A5-49, 6A5-50, 6A5-52, and 6A5-55.

DRIVEABILITY AND EMISSIONS (SECTION 6E3-C1). Adding CHART C-1F (Pressure Regulator Vacuum Solenoid) Facing Page and Diagnostic Chart on pages 6E3-C1-20 and 6E3-C1-21.

ELECTRICAL DIAGNOSIS (SECTION 8A). The following pages reflect changes to the circuitry due to the addition of Methanol Percent Gage added to Up Level Cluster: 8A-11-1, 8A-12-1, 8A-12-2, 8A-14-4, 8A-20-0, 8A-80-0, 8A-80-1, 8A-80-4. 8A-117-1, and 8A-117-3.