Glow Plug System

Connect a voltmeter between glow plug positive terminal and ground. Set the parking brake and shift the transmission out of gear. Turn the ignition switch to the "ON" position and check the following:

• The voltmeter should indicate battery voltage as soon as the ignition switch is turned on and the glow plug indicator lamp should be lit.
• The glow plug indicator lamp should turn off 3 seconds after the ignition switch is turned on.
• The voltmeter should read 4.3-5.2 volts about 6 seconds after the ignition switch is turned on.