Caprice V8-307 5.0L (1987)
Vehicle Speed Sensor: Technical Service Bulletins
Engine Controls - Incorrect VSS Diagram
Number:
88-443-6E
Section:
6E
Date:
October 1990
Corporate Bulletin No.: 016535
Subject:
DRIVEABILITY AND EMISSIONS - ECM MECHANIZATION
Model and Year:
1984-88 CAPRICE, CAMARO AND MONTE CARLO WITH 5.0L AND 5.7L ENGINES
TO:
ALL CHEVROLET DEALERS
This bulletin applies to 1984-1988 5.0L (VIN H/G) and 5.7L (VIN 6) "B," "F," and "G" Carline Service Manuals. In DRIVEABILITY AND
EMISSIONS (SECTION 6E1) the ECM Wiring Diagrams may illustrate that the 439 (ignition feed) circuit is spliced to circuit 437 (vehicle speed sensor
).
Ignition voltage is not supplied to, nor is circuit 439 spliced to the vehicle speed sensor circuit (437).