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Old Sep 24, 2007 | 07:41 PM
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power bus
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Power Loss

Hi every one,good to taalk at u .
I put a 4' cold intake on my 7.3 IDI wow what a differance.
Having power loss, th e bus takes off realy fast but then become slugesh and takes a while to reach top speeds.
the tranny is giving me issues E t4od I dont knnow if it is the torque converter or what, it is sliping once in a whill while going up hill and I but the fuel right to her and once I let off of the gas a little it catches and then grabs and goes,
Please tell me I dont need a new tranny!!
 
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Old Sep 24, 2007 | 09:32 PM
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From: Campbell River, B.C.
When the transmisson slips, does it neutral out comlpetely, or does it feel like its still pulling slightly?

Now when it re engages, does it grab hard, or does it gradually start moving again?

Is the condition repeatable on the same hill at the same speed, or does it act up with a mind of its own?
 
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Old Sep 25, 2007 | 05:02 PM
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Now u got me thinking!
Yes it neutrel out
I would say its more like a grab
It seems to be at the same
Plus my 2nd speed seems to have no power to it unless u put the fuel right to it
I just found out today that my king pins r going, is it a big job?
 
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Old Sep 25, 2007 | 05:37 PM
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I think you need a new tranny, sorry.

Worst case scenario, you have no more friction material on your clutch pack(s), best case scenario, you have a sticking valve, my guess would be the main boost valve in the pump. Either way, the trans will have to come out, and ripped apart to replace the affected parts.

Its possible that you have a sticking valve in the valve body itself, in which case, the pan can be dropped, and the valve body removed, with the trans still in the vehicle.

There are a great deal of other possibilities, but asside from a restricted filter, or incorrect fluid level, its most likely an internal problem.

I don't think your year of ford has kingpins, you probably have balljoints. Kingpins have to be honed by an automotive machine shop to fit the bushings that come with the replacement kits.

Balljoints are a little easier, if you can pop them out, usually the rust in there pretty badly. There is also a camber adjustment built into the balljoint, so your alignment will have to be redone at the same time.
 
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Old Sep 25, 2007 | 07:25 PM
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I think your right, I put in some slick 50 tran fluid and it seems to help but havent taken it for a long run yet.
The bus is a 1991 e350, there giving me a quote tommorow, Im scared!!
Could the power loss be from the trany or maybe a weak fuel pump? It us to kick down and fly for a big unit like this but no more!
I enjoy running it and in fact if I hadent found this sight I was going to sell it because I didnt the know how to fix it, so thax for all your wisdom. Do u think a green horn could rebuild his own tranny?
 
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Old Sep 25, 2007 | 08:29 PM
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From: Campbell River, B.C.
Originally Posted by power bus
Do u think a green horn could rebuild his own tranny?
Now that my friend, is a politically loaded question!

The E4OD in my truck is actually a costom build by yours truly, and I had no prior experience with auto transmissions, but I made many mistakes along the way. The biggest mistake I made was not getting a manual right from the get go.

This trans also requires a few special tools to properly disassemble and reassemble it, they're not very cheap either, but since I'm a metal fabricator by trade, I was able to make my own really easy. If you can cut and drill metal, you cam make the jigs yourself.

Your work area must be spotless, but you also nees lots of it, theres a lot of guts in there! I had a 6'x5' table and I used all of it.

If you are serious about trying it yourself, get the ATSG manual first ($15-$25), and read through it a few times. If you think you can make if work, get the update book as well before begining, it documents all the changes that happened over the years, and you might want to make some of them while rebuilding it.

One more thing, don't rush through it, and don't attempt it unless you can make do without your vehicle for a week or more, I live in canada, and it really sucked having to wait for parts to clear customs, but untill you tear into it, you will have no way of knowing if you need something other than a master overhaul kit.
 
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Old Sep 26, 2007 | 08:14 AM
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Im inpressed but considering yuor trade I may have done the same thing. Im a miner in bc, I can run the equipment but fixing is another thing!!!!
The wreckers in my area has a used one but Im not sure if thats worth my effort? and a new one is big $$$$$$$.
Im wondewring if it is posible to stik a differant rear end in it to increase fuel milege .
 
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Old Sep 26, 2007 | 11:54 AM
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From: Campbell River, B.C.
Where abouts are you in bc? I'm on north vancouver Island.

Unfortunately, the E4OD is one of those trannies that I just would not get used unless it gets a rebuild before going in. The transmission that I got for my overdrive conversion, was actually an OEM replacement with only 60 000 Ks on it, but the direct clutch (activates to procuce 3rd gear) was all but destroyed when I tore into it, there was no friction material left, and the apply piston was partially melted (had to replace it).

Can you remove and install the trans yourself? because there are aftermarket builders that sell updated E4ODs that will outlast the OEM built ones, even heard of good deals from ford dealers if you can believe that (ford requires updates be made on all there transmissions that are remaned).

Phoenix Hard Parts has some of the lowest prices right now, especially now that the loon is worth a whole dollar.

What were you quoted for the rebuild?
 
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Old Sep 26, 2007 | 01:09 PM
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Werer in Fernie
Thax for the info on the tranyits a lot to do but with your info it makes it much easier cheers!!
The qoute wz on the king pins Ill check out Phoeix for sure!!!
Im getting the impression the trany is not hard to take out but its a heavy one /
 
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