Glow Plug System: Description and Operation

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.