Recent content by pmedicmatt

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...

I know it's the solenoid, but it's brand new. I hear it cycle and it briefly locks the hubs then goes to vent mode when I activate the 4x4. Seems like either bad connection or a module. Just don't know where to go from here.

No leak there. If I plug the line coming from vacuum pump at the solenoid, vacuum pump draws a vacuum and shuts off. Same if I connect that line directly to hub line. It draws a vacuum and shuts off, locking the hubs. That's why I have to assume there's a problem with the brand new solenoid or a...

2010 f350 6.4. I'm having problems with vacuum solenoid. I've rebuilt entire front axle with new axle seals, u-joints, auto-hubs, etc. I also replaced the vacuum solenoid. Now for the problem. The vacuum pump runs continuously even when 4x4 not engaged. If I turn the knob to 4x4, you can hear...