Ford Superduty Vacuum Hublock system diagnosis

In today's video we diagnose the 4x4 system on my 1999 Ford F350 Superduty with a 7.3l Powerstroke engine. I have been manually locking in my hubs for 5 yrs. It is time to figure this out.

[@spelunkerd]

Well done, Chad. To diagnose system problems the first step is to understand how it all works. This style of teaching is perfect for those with the right mindset.

[@philh9238]

Yea if you can even find out how it’s supposed to work. Mitchell do t tell you crap a lot of times

[@MaicSalazarDiagnostics]

You should tech in your area. Guarantee that techs would love it. Your content is top notch for the ones that like to learn!

[@ThePracticalMechanic]

I taught for the college for a year in a high school setting. I wish I could do it still but I didn’t have the time to spare anymore. It was tough to be away from the shop during our morning rush. I have considered other training positions as well but always come back to time issues. RUclips can get worked in here and there.
Thanks again for the encouragement Maic.

[@MaicSalazarDiagnostics]

Nicely done my friend. Excellent explanation and use of the scope. I love all the editing you use here in the video. All easy to see. Great presentation.

[@ThePracticalMechanic]

Thanks Maic. I try to make it easy for everyone to see what I can see on the screen. Since most people watch from a phone it’s hard to see the scope with a mini view of the scope.

[@djosbun]

Very detailed walkthrough, Chad. Thank you for your efforts!

[@ThePracticalMechanic]

Thanks Dave. I got a thorough reminder of system operation last week when I got to work on three of these trucks. I forgot the vacuum system was only pulled to 50% to unlock the hubs.

[@scottschantz2553]

Nice job Chad.. Thanks again!

[@ThePracticalMechanic]

Thanks you for watching Scott, have a wonderful week.