It’s a cold winter day, and your Power Stroke won’t start. What do you do?
1. As we’ve stated before, the number one failure that will keep you from starting your truck is the glow plug relay (GPR). The first thing you should do is get your spare glow plug relay out and replace the one in the truck. You do have a spare glow plug relay, right? Chances are, this will get you back on the road.
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