Alright guys, sorry I've been off for a week. Got my chip back from tony 2nd time. Still having shift problems... I'm starting to think that it's not the chip, and rather the VB of the TC. It just seems like the shifts arn't happening fast enough and the engine continues to pull before it gets into gear... I don't know another way to describe it. Could this be symptoms of a couple weak springs in the VB? or could the TC be on it's way bad? Again, the issues only show up above 3/4 throttle.

Tony was nice enough to trade out for a totally new chip, and programs with basically stock shifts and line pressure, as well as TDE0 PCM code, and I can't Imagine that I got 2 bad chips in a row... Tony has been extreamely helpfull here, and I think that the burns are ok, and this is a trans issue. Any thoughts, I can get another vid up probably next week, but it's basically still doing the same thing.

I don't like throwing parts at a problem, but if there is a chance that a VB could help things, I'd be willing to get one from Racer-X I think there around $200.

Everyone have a happy easter weekend

-Robb

 

Robb, how much difference was there with the chip compared to old as far as power?

 

Night and Day. I went from stock to TS to Tony Wildman. Tony does an excellent job with his burns, and If yo have any issues you can send it back and he will work on it until you are happy. I highly recommend him if your looking for a chip. DP tuner is also another good company, although I haven't dealt with them personally, I have herd that they are good as well

-Robb

 

Robb

I would run some pressure test first.

Bill

 

it does sound like a typical stock e40d that has some miles on it, is she origonal at 153k? if so thats pretty high for a stock unit, i'm with madvan, run a little diag and then if it looks good you can toss a valvebody in and that will probably buy some time, but if it is that bad just from adding a chip then you probably have a tired tranny. do you have a way to get some video of the problem so we can give a little more advice?

 

link to video
https://www.ford-trucks.com/forums/7...ft-issues.html

 

wow, sorry, dont know how i missed that topic.
the first video looks like a typical sloppy shifting e4od, the tc is locking at the same time as the 2-3 shift robb, and your 1-2 is nasty...ouch


the second video doesnt start out bad, but 5-9 seconds when it gets all goofy is the tc locking and slipping. then the 3-4 shift looks fine.

the 3rd video i will assume starts out in 2nd gear. the first "short shift" is definatly the tc locking, then the firm shift that follows is the 2-3 shift with the tc still engaged. it then looks like you let off the throttle a good bit for the 3-4 shift resulting in the sloppy shift.

i would really like to see a full throttle run to get a better idea of what is goin on with your tranny. a shift kit would be a benefit to you and "the cure" would definatly solve the problem in the second video but i would feel better getting a little more diag out of it first before adding anymore parts to it and potentialy covering up a problem.

in any rate your second video of the 5-9 second blues is exactly what "the cure" is designed to eliminate, your truck shows the problem much, much worse that many trucks but you can clearly see the problem with the tc locking and unlocking during shifts and the problems it can cause.

 

I would really like to see line pressures in real time under load conditions and idle conditions.
I really cannot pinpoint much from the vids. The issues seem to exist or elevate with a chip. The chip can change many things. At some points in the vids it even looks as if the power falls off?
He has done WOT runs with TC locked with no signs of slippage from the trans or TC.
With this in mind it leads me to EPC system during TC lock/unlock due to the change in fluid flow ckts. Possible it may not recover fast enough. If low it will damage the trans. Or its the good old TC chatter. Just WAGS

If anything as of now i might throw a .427 boost valve in the VB.
Could be sticking/leaking under the higher line pressure.
http://www.bulkpart.com/Merchant2/me...roduct_Count=4

Bill

 

i agree, you cant tell much with the videos, and in my opinion the problem is already there without the chip. his shifts are not very good at all for a stock truck, especially the 1-2.

i agree with the line pressures as well, the way the second video shows the shift patterns with the 2-3 and tc engagement yells epc all the way.

i just looked at his signature again, i see he has a tc lock up switch, in the videos is he manualy locking the converter? that could be part of the problem if he is locking it when the pcm isnt expecting it. it wouldnt have the epc adjusted properly for the extra demand. we already know the epc isnt a good system in the e40d and i'm sure it cant react fast enough to compensate for tc mod

 

c00n

Its more of the reason why i pick the larger .427 valve.

Bill

 

i dont get it?

you mean the tc mod is the reason for adding the valve?
or the stock shifts?

 

I should have not used the word Boost valve. My bad
There are 3 "line pressure modulator" valves available for the VB.
331,427,500.
Thoughs are as the TC cycles it taxes the epc.
I never reinstall a 331 valve and the 500 are to harsh on trans and owner/driver.

Bill

 

this is what i didnt get. its like you where answering a question...lol
i dont know what my question was

i understand the 3 valves, dont they come with the epc eliminator kit, if he verifies the line pressure fluctuations as his problem now may be a good time to do it.

 

WOW guys lots of stuff here... Thanks c00n, Bill and Tim! I DO think that this is a pre-existing problem in the trans, and the chip just makes is much more evident. I can get some more WOT vids next week, I'm home and left digital camera up at school. c00n, like you had said, even stock (no chip) the truck has bad shifts. the trans was replaced at 90K by ford, (apparently) but I get the feeling that it might be the stock slush box. I'm just trying to figure out most cost effective way to fix this, and I really don't have the diagnostic tools (just a back-yard mechanic here ) to do much or the money to spend 3500 on getting a built trans...

Bill, you were mentioning something about not recovering fast enough? Thats what it feels like, goes through the gears and "something" is slow into the next gear. I don't know enough about trans to be able to describe the problem, but when your driving it, there is a big SOP feel. Tony reprogramed the chip to STOCK TDE0 shift points and line pressure, so I know the pressure shouldn't be through the roof from the computer.

I know a bit about the engines in the PSD, but trans is a whole other world for me. Thanks for bearing with me here, I'll get some vids up next week. Thanks again for the help! enjoy the holiday weekend!!!

-Robb

 

in those videos is that with the stock line pressures or the usual tw tunes? which way felt better or was there no change?

by not recovering fast enough he means that the epc is never at a constant pressure, it always moves around, when the converter locks it draws a significant amount of volume and pressure thus casuing the system to fall low, the pcm commands the epc back up to compansate for this, the epc in yours may not be able to keep up with the pcm's demand.

a quick easy way to do some really fast diag is to trick the pcm into transsave mode and default line pressure to max and take epc out of the equation for a while. then see how it shifts.... madvan...opinion?