TEST OR INSPECTION
Make sure that glow plug terminal does not come in contact with other glow plug terminals
while performing resistance checks. Resistance of two or more glow plugs in a parallel
circuit will change value of resistance measured.
Turn battery disconnect switch to OFF position (WP 0007). Checking individually,
check for 1.5 to 2.5 ohms resistance across all six glow plugs from glow plug terminal to
a known good ground.
If there is 1.5 to 2.5 ohms resistance across all six glow plugs from glow
plug terminal(s) to a known good ground, go to Step 8.
If there is greater than or less than 1.5 to 2.5 ohms resistance across
any one or all glow plugs from glow plug terminal(s) to a known good
ground, replace water pump engine glow plug(s) as needed