New Trans slips when shifting! - Ford Powerstroke Diesel Forum

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post #1 of 12 Old 06-20-2009, 11:20 AM Thread Starter
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New Trans slips when shifting!

Just picked up a 1996 F350 Powerstroke. New Transmission and Computer 6 months ago, with receipts. After driving for about half an hour, sometimes starts doing it when its cold, regardless it seems to slip very bad when shifting between gears.

I normally let of the gas pedal, and wait for it to shift and then ease back on it. Getting it past 35mph is a white knuckle ride. Going to take it into the transmission shop who did the transmission and see what they can do even though the warranty is up.

Anyways, any ideas? Thanks, Pete

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post #2 of 12 Old 12-26-2009, 08:13 AM
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i have the same problem with 2nd to 3rd its like the convertor locks in second and has to unlock to shift. im puzzled
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post #3 of 12 Old 01-08-2010, 07:45 PM
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Same for me, slips bad in first second and third but gets better after five or ten miles. Still slips after that just not as much. From what i've heard it's a common complaint but no one seems to have a solution. Gotta be a converter issue because I've never heard of it happening in fourth once it locks up. Let us know what the tranny shop says
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post #4 of 12 Old 01-08-2010, 07:50 PM
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I'd say something is wrong in there for sure.

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post #5 of 12 Old 01-09-2010, 09:00 AM
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Make sure the fluid is at least 1/2 inch above the full mark. The dipsticks were too long on all the early to mid '90's.
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post #6 of 12 Old 01-09-2010, 08:46 PM
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Would my '97 have the long dip stick, didn't know if it was considered mid or late 90's thanks

Aaron
1997 f250 ext. cab long bed 4x4
mods so far:
strait exaust
transmission controller
mods to come:
too long to list
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post #7 of 12 Old 01-13-2010, 09:05 PM
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looking for answers

Aaron
1997 f250 ext. cab long bed 4x4
mods so far:
strait exaust
transmission controller
mods to come:
too long to list
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post #8 of 12 Old 01-14-2010, 04:32 AM
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Don't know exacntly what date they fixed that problem but I put trans fluids at least 1/4 above the full and all ford e40d'4r100 at least 1/2 inch above, even '03.
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post #9 of 12 Old 01-14-2010, 03:38 PM
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Thanks I will top her off and see if it helps.

Aaron
1997 f250 ext. cab long bed 4x4
mods so far:
strait exaust
transmission controller
mods to come:
too long to list
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post #10 of 12 Old 01-21-2010, 08:09 PM
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Don't forget to post back if you find the problem. It helps us all.
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