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Power Strokes
6.4 Tech
LPFP not cycling
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[QUOTE="MT_Diesel, post: 1441229, member: 10422"] Had a chance to troubleshoot it yesterday with warmer weather. Tested voltage at the pump and it doesn't appear be getting power (small female terminals made it tricky with my multitester probes). The fuse appears good and I swapped the relay for a known good one. I removed the fuel shutoff switch, continuity is good through it in the on position and jumping across the plug terminals didn't change anything. Also, it has voltage when the pump should be on. Next steps are to use an extra battery I have to put power directly to the pump to check function, then test the high amp side of the relay. I'm cautiously optimistic that it's not the pump. Any other suggestions? Thanks! [/QUOTE]
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