Operation CHARM: Car repair manuals for everyone.

Glow Plugs

These are 6-volt heaters (operated at 12 volts) that turn ON when the ignition switch is turned to the Run position, prior to starting the engine. They remain pulsing a short time after starting, then they are turned OFF.

A Wait to Start lamp on the instrument panel provides information on engine starting conditions. The Wait to Start lamp will not illuminate during post-start glow plug operation.