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Have a 1999 Gmc Or workhorse chasey van with a 6.5 Diesel engine, Having problems with glow plug fuse, sometimes it will blow the fuse and some times when the ignition switch is in the run position the starter will engage. some times everything works fine need to find what is causing this have been told it could be faulty wire or even vehicle ground bad and back feed to starter

Answers from the Automotive Experts

Karen Salvaggio, Owner/ Editor Thunder Valley Racing and Professional Race Car Driver at Thunder Valley Racing You most likely have a dead short to ground, caused by a faulty wire or a loose mount on a grounded item. If you are unable to safely trace the wires to find the source of the problem, you should take your vehicle to a qualified service center for a professional mechanic to diagnose the issue. Thanks for your question!

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