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1999 to 2003 7.3L Power Stroke Diesel
7.3L Power Stroke Diesel equipped Super Duty and Excursion.


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Old Fri, June 4th, 2010, 02:54 PM
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cleatus12r cleatus12r is offline
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Quote:
Originally Posted by COFF View Post
so back to the trans, if i step on it, it shifts like a porche ( not that i know what thats like, but i would imagine smooth). if i baby her and go easy, she kicks in a 3rd and od. is this normal?

The transmission shifting has a lot to do with the tuning and mechanical limitations of the transmission fluid passages.

Usually, when more power is put through the transmission, the tuning will compensate by increasing fluid pressure during the shift. This increased pressure will fill the clutch housings/servo bore/etc. faster and with more force. If the transmission pressure increases begin to show less of an effect as they are raised, then mechanical fluid control becomes the issue.

As long as you don't get a long, drawn out slide into a gear, you'll be fine. The low power shifts that kick don't hurt the transmission but they can be annoying.

Most any competent tuner can fix that right up for you.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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Old Wed, June 9th, 2010, 01:05 AM
COFF COFF is offline
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Thanks guys! I found a awesome 7.3 mech close to where i live, and we narowed the oil temp to the trans. we pluged in a programer, and found my oil temps running in the norm. have plans in the next week to do a trany tune up and check up on the truck.. I have all intentions of going with php for a tunner, just dont know what one would be best. Thanks again to everyone here! what a great comunity!

Semper Fi,
jc
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Old Wed, June 9th, 2010, 01:08 AM
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907DAVE 907DAVE is offline
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Oil temp high because of tranny?

Was it tranny temps that were high?

Please explain.
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