My 2000 f-350 7.3 diesel starts hard when cold ,is it glow plugs or is there another easier fix,replaced glow plug relay didn't help.
Apr 18, 2011 at 10:15 AM
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MHPAUTOS
✓Experienced Mechanic
31,937 POSTS
You will have to check the glow plugs, easy way is to remove power or the buzz bar that connects each glow plug, and with a multi meter check that each glow plug is not open circuit, do this on continuity test, if open circuit replace , i always replace all if one is burnt out, as often the others are not far behind.