'95 F250 trans issue

[Ron's Asphalt]

The trans started shifting way early on this truck today, like 4th gear @ 20 mph. Reminds me of a broken TV cable on older GM's. I have not had time to check into this as the truck is still out plowing. Any ideas of what I should be looking for? Vacuum, cables, wires, etc. Fluid level was low, so I have a leak to look for.

I will be out for a while, so I won't be able to respond immediately. Thanks for any help!

[snowjoker]

I have a buddy who has a 95 f-350 diesel and just replaced the trans in September and in December they replaced it again ! And then less than a week later it was acting up so back to the dealer whom installed the trans. Come to find out it was the wiring harness..

[Ron's Asphalt]

A little more info. Found out the cooler sprung a leak. Filled it up, but still acting the same. You can manually shift through every gear okay. I was under the hood replacing the power steering pump yesterday, it's possible I knocked a wire or hose loose. opinions, experiences......

[Pete]

Check for codes, my 97 would shift goofy after it warmed up. Ended up being the solinoid pack the codes were in the 620s. Just a tought.