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I have a 99 f250 7.3 4wd with a 4r100 installed new torque…

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I have a 99 f250...
I have a 99 f250 7.3 4wd with a 4r100 installed new torque converter front seal and Trans filter and fluid now engine bogs in reverse and in man1 gear only when the Trans gets warmed up
Submitted: 2 years ago.Category: Ford
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Answered in 30 minutes by:
3/14/2016
Ford Mechanic: Joe Barfield, Master High-Tech replied 2 years ago
Joe  Barfield
Joe Barfield, Master High-Tech
Category: Ford
Satisfied Customers: 1,359
Experience: 36yrs.in Auto Industry, Aamco Trans.Master..
Verified

Hello , 2 things could cause you issue.....#1 your cooler flow is restricted....you can test by re moving the rear cooler Line.... in park it should put out over a Qt.. of fluid every minute or it will cause the torque convertor to apply in all gears......or you have a defective torque convertor .......if it drives in all forward gears ok....Thanks Joey

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Customer reply replied 2 years ago
The cooler has great flow and the torque is a new one it drives great except for reverse bogs down and in man 1low gear bogs down too
Could it possibly be the tcc solenoid being commanded on when no suppose to ? Can I unplugged the solenoid pack plug on top of the Trans pan rail to start it see if it bogs down if it doesn't would that mean I have pcm or solenoid problem
Ford Mechanic: Joe Barfield, Master High-Tech replied 2 years ago

hi , yes if reverse works fine then its not your t,c,.....first thing then would be to replace the SOLENOID pack

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Customer reply replied 2 years ago
When I unplugged the solenoid pack it did the same thing engine bogs down but only when Trans temp is up to temp
Ford Mechanic: Joe Barfield, Master High-Tech replied 2 years ago

ok if that's the deal its internal needs to be built....with Sonax valve updates......mainly for the pump booster valve & sleeve & all bushings & sprags etc.....sorry to say.....please rate my answer ...oh & your computer is fine Thanks joey

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Ford Mechanic: Joe Barfield, Master High-Tech replied 2 years ago

17 years old its time

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Customer reply replied 2 years ago
I just rebuilt it before this happened maybe have 6k on rebuild
Ford Mechanic: Joe Barfield, Master High-Tech replied 2 years ago

ok , did you build I or someone else ive got questions on the rebuild as for parts installed ...ok

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Ford Mechanic: Joe Barfield, Master High-Tech replied 2 years ago

6000 miles I warranty all mine 2yrs unlimited miles....even drag racing units

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