Ford SD/Excursion 4x4 Driveline Questions
When I bought this truck one of the hubs was slightly hanging out so I knew I would need hubs so I had a shop replace both hubs they found a vacuum line leak that they patched and said 4x4 worked. I p...
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Sounds, like others have said, either a vacuum leak or like mine, a bad PVH soleniod(located on right fender under hood and pictured here) around $60
