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6.7 Tranny Problems 6.7 Tranny Problems

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Old 08-27-2014, 05:57 PM
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Any ideas?

Good evening,

I've been reading allot on here but this is my first post here....

I purchased a 2012 F250 with 19,000 miles on August 8th.. I drove the truck allot prior to purchase (like 80 miles) and I know for a fact I found nothing unusual with how the truck shifted....
Now that I've had the truck 3 weeks and put about 1000 miles on it, I keep noticing a harsh 5th gear shift, both up and downshift.

I am curious if anyone else has experienced this with their Super Duty and if so, what fixed it?

I purchased it from a Ford Dealer and the Carfax shows it is a one owner truck sold new from the dealer I purchased it from.... No accidents or anything odd on the Carfax.

The history provided by the dealer is the following:

Man & woman in their late 60's purchased it new in 2012 to pull their Fifth wheel. They pulled their 5er for 16,000 miles and decided they no longer wanted to travel so they took the truck back to the selling dealer and sold it back to them for cash....

I am wondering if I should go ahead and do a tranny filter and fluid change considering they pulled a 5er most of the miles on the truck?

I realize this is off-topic for this thread area but I also have this cab bounce or hop at 40-45 mph that is real annoying... Anyone else experienced this?
My F-150 did this as well and changing the rear shocks to Bilstein solved it...May have to do that to this truck as well. Any thoughts?

Thank you.

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Old 08-31-2014, 06:11 PM
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First,


Second,
Check with the dealer to see if the truck has any outstanding TSBs. There has been one or two with the '11s and '12s that address transmission shifting.

Third,
I would suggest waiting for quite a while on opening the tranny up. It is my personal preference to be careful on the timing of this task. I believe the service supplement states upwards of 100,000 miles but I haven't looked at in a while. Towing for 80% of the 19,000 miles isn't that out of the ordinary nor necessarily that hard on these trucks. You could probably have it tested and that might help you decide.

Fourth,
Check out this for your 40-45 mph hop -
My Theory on the "Superduty Hop" and Possible fix.

There are plenty of others on here that can offer up better responses than I, but these might get you started. Good luck
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Old 09-01-2014, 06:20 AM
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Quote:
Originally Posted by Sterling6.7 View Post
First,


Second,
Check with the dealer to see if the truck has any outstanding TSBs. There has been one or two with the '11s and '12s that address transmission shifting.

Third,
I would suggest waiting for quite a while on opening the tranny up. It is my personal preference to be careful on the timing of this task. I believe the service supplement states upwards of 100,000 miles but I haven't looked at in a while. Towing for 80% of the 19,000 miles isn't that out of the ordinary nor necessarily that hard on these trucks. You could probably have it tested and that might help you decide.

Fourth,
Check out this for your 40-45 mph hop -
My Theory on the "Superduty Hop" and Possible fix.

There are plenty of others on here that can offer up better responses than I, but these might get you started. Good luck
Thanks for the reply and links. I'll look them over and see what needs to be done to fix it.
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Old 09-01-2014, 06:22 AM
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Thanks for the reply, I'll check out the links you posted
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