gfbidd

Full Member
Joined
Feb 7, 2007
Messages
89
Points
8
Make
Ford
Model
F350
Year
2019
Miles
135,824km
Engine
6.2
2019 F350 crew cab, 6.2, automatic, auto hubs, 136,000km, was told driver got stuck because of no 4x4, when i got to the truck it wont shift back to 2 wd, switch is showing that it is switching thru 2, 4hi and 4lo, can hear motor moving, removed motor and checked movement-is good-, tried another known good shift motor-same issue-tried manually shifting t-case, still wont go to 2wd. Am I missing something or do I need a transfer case? Thanx
 

billr

wrench
Staff member
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Mar 12, 2007
Messages
7,869
Points
63
Wow, kind of confusing. The driver said could not get 4WD, but you find you get only 4WD?

When you tried manually shifting it, did the mechanism refuse to move, or did it move OK but have no effect on the gear connections?

Are you jacking up wheels to verify when it is in 2, 4H, or 4L; or just going by how it "feels" as you drive it?
 

gfbidd

Full Member
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Feb 7, 2007
Messages
89
Points
8
When I manually shifted the mechanism did move to where it was supposed to go but still no 2wd, have been testing with truck on a hoist 4 wheels in the air.
 

billr

wrench
Staff member
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Messages
7,869
Points
63
Are you saying it is impossible to stop both front wheels from turning, when in 2WD? I would expect them to turn, when raised in the air, but it should be fairly easy to stop them simultaneously.
 

gfbidd

Full Member
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Feb 7, 2007
Messages
89
Points
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Both front wheels are driven at all times by the front driveshaft, cannot stop them without hitting the brakes.
 

gfbidd

Full Member
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Messages
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I have determined that something let go inside the t-case, will tear it apart to see what is going on. Thanks for the input.
 

gfbidd

Full Member
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Feb 7, 2007
Messages
89
Points
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on tear down found plastic shift assembly and steel shift collar broken, anyone got a lead on a good diagram for parts description?
 

nickb2

Wrench. Diagnostic Tech.
Joined
Nov 22, 2008
Messages
13,010
Points
83
Location
St-Hyacinthe, Quebec, Canada
Ok, just checked my database, and I confirm, this is a classic vac leak at open wheel end hubs or whatever godforsaken english name ford gave to this. Very classic. Check vac leak at open wheel end hubs. Easy to check,.
 

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  • ford f350 4x4 issue.pdf
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nickb2

Wrench. Diagnostic Tech.
Joined
Nov 22, 2008
Messages
13,010
Points
83
Location
St-Hyacinthe, Quebec, Canada
This is just me venting, but I would sure like to meet the ford engineer that invented this nonsense system. Up here in northern canada, we see this ALL THE F ING TIME. Plow through a snow bank, catch a bit of ice chunks, bye goes the vac line, stuck in 2wheel drive,

Again, sure would like to meet the guy.

Anyway, check this video out, length wise yeah, but valuable info.
 
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