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Message: <blockquote data-quote="bobweb" data-source="post: 1671205" data-attributes="member: 222839"><p>I'm sure you've checked that all the glow plugs are good, but make sure because you need all of them working for reliable diesel engine cold starting. Glow plugs burn out all the time. You can measure the current (Amps) flowing to all the glow plugs to determine if one or two of them is bad. Use an inductively coupled ammeter that just clamps around the wire going to all the glow plugs. Each glow plug draws maybe 7 Amperes, so you should read about 55 Amperes on a cold start. If one glow plug is bad, you'd read less than 50 Amperes.</p></blockquote><p></p>