ArdWrknTrk Posted April 10, 2021 Share Posted April 10, 2021 I misunderstood. Thought you were looking for 351HO wiring. Anyway, it is going to be fun unraveling that. Well, he has a new NAPA pump and says sometimes switching tanks back and forth frees it up. Perhaps there is a lot of sediment, and it gets packed around the filter sock? I think I would A) try the pump sucking from a bucket or jug and check the volume it's putting out. B) I'd also drop my endoscope in the tank for a look around. There must be a switching valve inside the frame rail beneath the driver. I would probably replace the frame mounted fuel filter as a matter of course. Link to comment Share on other sites More sharing options...
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