C 10 1/2 Ton Pickup 2WD V8-379 6.2L DSL VIN C FI (1982)
Glow Plug Controller: Technical Service Bulletins
Glow Plug Controller - Operation
Number:
84-182
Section:
6D (VIy)
Date:
August, 1984
Subject:
GLOW PLUG CONTROLLER
Model and Year: 1982-84 "C/K/G/P" - 10-30
WITH 6.2L DIESEL ENGINE
TO:
ALL CHEVROLET DEALERS
The glow plug controller has three (3) internal circuits: a pre-glow timer, an after-glow timer, and a circuit breaker. A failure of the
pre-glow timer will cause the circuit breaker to operate. The fact that the circuit breaker is controlling the glow plugs can be
determined on a cold start by observing the glow plug light on the instrument panel. If the pre-glow timer is working, the glow plug
light will continue to cycle on and off with the ignition key on and the engine off. If the pre-glow timer is not working, the glow plug
light will only cycle once with the ignition key on and the engine off.
If it is found that the circuit breaker is controlling the glow plugs, the glow plug controller should be replaced. Extended operation of
the glow plugs with the circuit breaker can cause premature failure of the glow plugs.
