Transmission change? - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 02-28-2013, 11:00 AM Thread Starter Rookie
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Transmission change?

Howdy. I've got a 97 Super Duty with the 7.3 and an auto trans and approx 175,000 miles. It is converted to a chip dump truck for my tree service. It pulls around a heavy duty chipper and is often filled with loads of wood chips. It really seems low on power, has a real hard time getting going if you start from a stop on an inclined driveway, shimmies in drive while stopped. Do I have an issue with my torque converter, or something related to the tranny? Should I upgrade the tranny? To what?

It doesn't slip out gear or make strange noises. Maybe it's engine related? If I take it to a shop with a dyno, can that answer any questions?

I used to have a 96 GMC 6.5 diesel with an allison automatic and that thing was a champ. Quick off the line and pulled until the cows came home. Unfortunately, it had wiring problems and kept catching on fire. Hence, I am now a Powerstroke owner.
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post #2 of 4 Old 02-28-2013, 01:32 PM
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Could be the transmission or a engine issue. Do you have any lights on like the OD flashing or a SES light? Either way, start by getting your codes pulled from a good scanner. Hint: you won't find a good scanner at a parts store.

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post #3 of 4 Old 02-28-2013, 03:29 PM Thread Starter Rookie
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Nope. No CEL on or anything like that. The only other thing I can really tell you about the truck is that on start-up it has a lot of white smoke blast out (unburned diesel, from what I understand). And that occasionally on start-up it will lope.
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post #4 of 4 Old 03-03-2013, 08:47 AM
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White smoke on start up usually points to GP's or GPR.

The trans issue to me sounds like a TC issue. Drop the pan and see what the fluid looks like.

The options are many on a new trans... You could get a stock rebuild for around $1800 or go all out and get a BTS for like $5000. Depends on what you want to spend...

If you have a 97 then you already have all of Fords HD upgrades for the E4OD, so realistically and upgraded VB and TC would put you in real good shape. As long as you truly have no slippage.


08 Axle/4x4 conversion, 5spd conversion, 6637, 5" SP exhaust, gearhead tunes
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