Shudder in shift between 3rd and OD - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 02-04-2010, 02:05 PM Thread Starter
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Shudder in shift between 3rd and OD

I posted this in the transmissions section earlier, but I don't think it gets a lot of traffic, so I'll post it here.

My 01 f250 developed a shudder when shifting between 3rd and OD. The best way to describe it is that it sounds like the rear of the truck is running over lane dividers for a second. I swapped out a little over 1/2 the tranny fluid and the problem still remains. Is this usually a converter slipping issue, or a problem deeper in the tranny?
kbrennan is offline  
post #2 of 2 Old 02-04-2010, 05:37 PM Rookie
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my 99 350 did (does) the same thing, my local tran. shop advised me to change over to mercon 5 fluid. mine was very bad probably caused be overheating pulling rv, he said i could expect to get another year or two out of it if i changed to mercon 5,that was over 5 years ago and it's still pullin campers,it hesitates goin' into o.d. and i usually have to let off the peddel to get it to shift ,but it 's still pullin' ok.
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