How to change front pump bushing on auto transmission?? - Diesel Forum - TheDieselStop.com
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99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 03-11-2006, 05:40 PM   #1 (permalink)
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How to change front pump bushing on auto transmission??

My buddy had a real tinny sounding noise, took the truck in and they said that all of his flex plate nuts had backed out, the wife was driving so god knows how long she ran it like that anyway, the tranny is now leaking transmission fluid real bad, we dropped the tranny last week and replaced the front pump seal but that had NO EFFECT on the leak, could the Torque converter be leaking? We have the tranny out again this weekend and we pulled all of the bolts out of the front cover plate but it will not budge do we have to pull the pan to get to the bushing in there??

Thanks for any help!!

97 F-250 7.3
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Old 03-11-2006, 06:30 PM   #2 (permalink)
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Re: How to change front pump bushing on auto transmission??

OK the front plate has kind of a build in puller in that the holes are threaded for 3/8 bolts so we got that off, but the bushing didn't look that bad but a lot of tranny fluid was leaking out I hope that this was the problem.
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Old 03-11-2006, 10:50 PM   #3 (permalink)
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Re: How to change front pump bushing on auto transmission??

If the flexplate bolts were loose, allowing the converter to wobble, it would likely wipe out the front pump bushing. A new bushing should fix it, but look carefully at the converter neck.

If it is scored or worn, a new pump bushing will not stop the leak. You will have to replace the converter.
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Old 03-12-2006, 05:23 AM   #4 (permalink)
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Re: How to change front pump bushing on auto transmission??

replace the pump and the converter at the same time we did one for around 400 in parts
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Old 03-12-2006, 12:15 PM   #5 (permalink)
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Re: How to change front pump bushing on auto transmission??

Thanks for the replies!

We replaced the pump bushing and now we are trying to get the pump back on, we tried to wiggle it in yesterday with the tranny in the horizontal and that was a no go so we will have to stand it up and use vaseline! (at least that was the advice of another buddy) does anyone have any better ideas to get everything lined up again??? BTW we have a replacement Torque converter and will be replacing that as well, Thanks again for the assistance.
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