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Power Strokes
6.0 Tech
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[QUOTE="Mdub707, post: 370236, member: 107"] Ok, Just got back in to town where my truck is sitting, but it's dark already here. I checked the fuel pump shut off switch, no change. Out of curiosity I decided to test the FICM with a multi-meter to see what is going on. When you first turn the key, the injectors buzz good, but voltage immediately drops from 48 to 36ish, and keeps creeping down as the injectors buzz. As soon as they stop buzzing, the reading drops to 0.0! It stays at 0.0 even when cranking, but I know for a fact the FICM itself is good. I even tried swapping another good FICM I have here that I know is good and it does the same symptoms, though I didn't try reading that one with the multi-meter. I know all of the fuses on the truck are good, I'm thinking it's a relay under the hood possibly? I pulled them, nothing smelled burnt or anything... Thoughts? [/QUOTE]
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