Operation CHARM: Car repair manuals for everyone.

Glow Plug Control System

Glow Plug Circuit:





Purpose:
The glow plug system is used to preheat the chamber as an aid to cold starting.

Operation:
In the diesel engine, air alone is compressed in the cylinder, then after the air has been compressed a charge of fuel is sprayed into the cylinder and ignition occurs due to the heat of compression.

The glow plug system consists of an integral-electronic control/glow plug relay assembly, 6 volt glow plugs, and a "GLOW PLUGS" lamp.