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Testing glow plug controller

4K views 0 replies 1 participant last post by  Daxman 
#1 ·
Does anyone have an easy way to test the glow plug controller on a 6.0 engine. I tested the ficm and it was bouncing around from 42.8 to 43.9, so im not sure if that would have to do with my starting issue. I know its not quite 48 so im still lost. So i was wondering if maybe it might be the GP controller. Someone mentioned using a jumper or some jumper cables to the battery to the controller.???? Is that a recipe to short something out or what.
 
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