shifting issue
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New User
Joined: Oct 2011
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shifting issue
I have a 2003 F250 with a 5.4L V8 automatic transmission with 64,000 miles. The truck runs and drives well but occasionaly while driving it acts like it shifts into a higher gear slips a bit then downshifts and runs fine. The duration of this "acting up" is about 1-2sec. It seems to do it when going up a slight grade at crusing speed about 40-50mph. (Not towing when it does it) It doesn't do it all the time. Any ideas? I'm planning to change the filter and fluid but am doubtful that will help. The fluid color is nice bright pink and does not smell unusual.
Cargo Master
Joined: Feb 2011
Posts: 3,450
Likes: 13
From: Forest lake minnesota
It sounds like the torque converter unlocking and then locking back up again , I think this can happen if you touch the brakes or need to accelerate. Sounds normal to me but maybe Mark will be along to give you more onfo 
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