Long and Hard Shifts - Ford Powerstroke Diesel Forum
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Old 10-12-2010, 07:39 PM
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Long and Hard Shifts

Hey guys I have an e99 that I just bought about a month ago. It has a rebuilt tranny from AAMCO and a brand new tc. I put swamps 175/146 single shot injectors and a brand new modded 17* hpop on it with a TS performance 6 pos chip. Before I did any of this, I had a bully dog (I took it back and put the money towards the above mentioned mods) and the tranny would shift a little hard, but I talked to bully dog and they confirmed that they changed the line pressures in the transmission, which explained the hard shifts. But now, after all this, my transmission shifts even harder than before, and sometimes, it takes an extremely long time to shift between gears. Do you guys think this could be because of the power that I'm making now, or is it possibly because of the chip, maybe the tune isn't right? I've always dealt with manuals, so this is really out of my league. I read some stuff about mechanical diodes, but I also read that my truck doesn't even have one, that it could be clutches slipping. If I have a rebuilt tranny, why should the clutches be slipping? Any insight would be appreciated guys, thanks.
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Old 10-24-2010, 08:19 AM
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anybody have any ideas?
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Old 11-02-2010, 04:45 PM
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I don't know how much this will help but...
how many miles does the rebuilt trans have? How long did you run the bully dog?
Tow? Drive it hard?
If you tow a bit or ran the bully dog for awhile, it really could be that the trans is getting worn already, but have you looked at the fluid?
It should be pink with no burnt smell to it. If it's brownish or has a 'toasted' smell then, yeah that's the trans going out.
I had a AAMCO rebuilt trans in my '95 Mustang and it was SOLID. I pounded it for over 125,000 miles and it was great, but I am sure it all depends on who put it together not the name of the shop.
I don't know how likely it is for a 'stock' trans to go out, I don't seem to hear of that many guys toasting their trans right away with a chip or programmer. If so I would love to hear about it, I am unaware.
Good luck -
Scott
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