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Power Strokes
6.4 Tech
2010 f350 vacuum problems
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[QUOTE="pmedicmatt, post: 1529978, member: 31458"] After further researching, I have found that the plug for the pvh is providing 12v to the center pin. But both of the side pins are providing a constant ground when selector switch is in 2wd. From what I can interpret, the side pins should only provide a short series of pulses of ground when selector switch is moved to 4wd or 2wd. One side pin is for engaging hubs and the other is for disengaging hubs. This is at least my interpretation. The question now is why I am getting a constant ground on the side pins? Is there a separate 4wd control module gone bad?? If anyone can chime in the help would be greatly appreciated! [/QUOTE]
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