Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

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.