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Old 05-16-2019, 06:04 PM   #11
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Not so on slipping, while slip every time can be common, if a seal ring is involved (worn driver end cover on these) they often can seal right one time and no slip and the next not to leak and slip, as well the spool valves in VB can seize or not when the hardcoat wears off to do the same. The broken servo pin issue on these can easily work right then not work. OWCs can do the same. There are way too many variables involved in shifting to say they always slip or they don't; it is simply not true although it seems to be. Trans simply being low on fluid can flare one time going around a corner and the next not depending on how tight the corner and a difference of a couple miles an hour doing it.

Most ATX use hydro pressure to apply the converter clutch, these are backwards, they use hydro pressure to DISENGAGE the clutch which is applied by a spring, meaning hydraulic fault issues may not do so and engine dies as you come to a stop. The converter clutch being on stopped it. Similar to a MTX clutch.
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Old 05-18-2019, 09:48 PM   #12
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I hope you've had luck with this. I've only ever owned manual's, so very poor insight as to what could be your problem. But I'll be following along to see what the remedy might be.
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Old 05-19-2019, 02:00 PM   #13
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Foush

No luck yet. I did swap out the fuel pump and when it seems to be working the car is definitely getting a whole lot more power to it. The pump in there still had the manufacturer sticker from 03 lol.
The only thing that I can really figure out that I can change that might be the cause or have something to do with it is the valve body for the solenoids if something is stuck in there. Past that I'm probably looking at a transmission overhaul 😕
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Old 05-19-2019, 02:03 PM   #14
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On a side note, I'm pretty sure I forgot to do a relearn after I had reinstalled everything. Not sure if it's going to help but once the daughter is asleep and the roommates home I'll be able to do an idle relearn. Wish I had the tools to do a tcm clear/ relearn. Still learning a lot about that whole system. kind of new to cars but completely new to transmissions
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Old 05-21-2019, 11:23 AM   #15
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Well got an update from the transmission shop... And my transmission seems to be in perfect health. They couldn't really specify but said that it is definitely something with the engine not the trans. At least the place I go to provides free diagnosis for the transmission.. I'll be sure to update y'all as I find out something from the shop. I've seen quite a few of these forms and everybody always blames the transmission slipping or solenoids. My issue has been verified that it is not with either one of those. So hopefully if they find the fix it may help some of y'all out there.
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Old 05-21-2019, 11:47 PM   #16
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IF they are right, so many nowadays are no longer. FYI, there is no TCM on those, the PCM only for control there, it had not been separated into another module yet. Pull battery cable for 5 minutes and EVERYTHING relearns.
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Old 05-22-2019, 03:57 PM   #17
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The repair shop just got back to me and they said that it is an issue with the PCM randomly dropping the signal to the engine and just shutting off. Basically told me I'm going to have to speak to Ford, that they can't seem to pinpoint it. Could it be a faulty ground or a short in the wiring harness? it does it intermittently so I don't think that it is something with the PCM sending a wrong signal, more so that the signal is getting disconnected randomly when accelerating or jostling the engine from going up a hill.
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Old 05-22-2019, 03:58 PM   #18
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Would a PCM sometimes work and sometimes not or would that be something more directly related to wiring or grounding issues?

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Old 05-22-2019, 06:54 PM   #19
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'...when I adjust the throttle up the problem doesn't seem as pronounced.'

From post #5. Dunno what you think you are adjusting there but likely messing things up worse. The throttle should never be messed with at all, it throws the computer off a mile. That alone done whacky can mess up the trans shifting.
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Old 05-22-2019, 07:06 PM   #20
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Quote:
Originally Posted by amc49 View Post
'...when I adjust the throttle up the problem doesn't seem as pronounced.'

From post #5. Dunno what you think you are adjusting there but likely messing things up worse. The throttle should never be messed with at all, it throws the computer off a mile. That alone done whacky can mess up the trans shifting.
the trans shifting didn't end up being the issue. The issue is that the PCM is basically losing communication to the engine. My fuel trim levels and everything else when it is working are fine. I had adjusted it slightly down due to the fact that I had to replace my entire fuel system and it was idling at about 1200 RPMs after due to everything being the correct pressure and such. I just had it tested and everything is up to spec when the problem isn't apparent. While driving around with the scanner plugged in, the car would literally lose signal from the PCM and just die. The mechanic said that it could be something with the wiring harness or PCM itself. I'm planning on going and grabbing a few diodes tomorrow and seeing if that possibly remedies anything. I was just hoping to gain a little more understanding of how the power management works I suppose.
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