E4OD problems with PCS - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 6 (permalink) Old 12-10-2014, 09:29 PM Thread Starter
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E4OD problems with PCS

I have a 95 E4od mated to a Cummins, and controlled by the PCS system. I have had problem after problem with tuning it to my needs, plus the occasional problem that pops up and "goes away." I was wondering if there is any way to hook a diagnostic computer to the trans anymore, since most of the original wiring is gone? The normal truck can see when the trans is acting up with the O/D light codes, but mine is eliminated so I have no way to know if its just the tuning of the PCS or the trans is going to hell. I had the trans gone through and added a trans go kit and also a banks torque convertor, but anything can happen. Any advice or direction is appreciated. thanks
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post #2 of 6 (permalink) Old 12-10-2014, 11:12 PM
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Re: E4OD problems with PCS

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Originally Posted by fummins97 View Post
I have a 95 E4od mated to a Cummins, and controlled by the PCS system. I have had problem after problem with tuning it to my needs, plus the occasional problem that pops up and "goes away." I was wondering if there is any way to hook a diagnostic computer to the trans anymore, since most of the original wiring is gone? The normal truck can see when the trans is acting up with the O/D light codes, but mine is eliminated so I have no way to know if its just the tuning of the PCS or the trans is going to hell. I had the trans gone through and added a trans go kit and also a banks torque convertor, but anything can happen. Any advice or direction is appreciated. thanks
I'm pretty sure once you hack the wiring and get rid of the adapter for a diagnostic computer that you're SOL.

LUCKILY for you there's a forum full of people here who are a lot more mechanically inclined than me. If you post the symptoms of what's going on, they may be able to help you.

And, as the old saying goes, if it ain't broke don't fix it. If your fluid levels are good and there's no grinding noises, or hard shifts, or slippage, then...you're probably fine. All the wire modifications you did to it could cause some issues. Did you solder/tape all your connections?
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post #3 of 6 (permalink) Old 12-11-2014, 03:41 PM Thread Starter
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Re: E4OD problems with PCS

yeah I've been hassling the forum guys for about a year but its hard to diagnose something without being there. A guy on compd has really helped me out and I'm thinking about making a 14 hour drive to him to get it dialed in right, but I was hoping for something quicker lol. All my connections are done proper and sealed right, I'm sure its just tuning, but thought I would ask. thanks
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post #4 of 6 (permalink) Old 12-11-2014, 05:09 PM
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Re: E4OD problems with PCS

Quote:
Originally Posted by fummins97 View Post
I was wondering if there is any way to hook a diagnostic computer to the trans anymore, since most of the original wiring is gone?
What does PCS tell you when you ask them? If it is going to do any diagnostics it's in the PCS. You eliminated the Ford diagnostics when the Ford computer was removed.

Mark
Former Ford Automatic Transmission Engineer

“The good thing about science is that it's true whether or not you believe in it.” ― Neil deGrasse Tyson
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post #5 of 6 (permalink) Old 12-11-2014, 10:51 PM Thread Starter
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Re: E4OD problems with PCS

Pcs, along with destroked who I bought it from, haven't been real helpful at all. Pcs at least answers their phone. Basically my two biggest issues are when wot, it will shift 1-2, 2-3, then 3-4 goes back and forth for some reason, I have to let off to let it stay in 4th. I've read that if the shifts are close they might "search" so I moved the shifts a little farther apart and its the same. Second issue is a lot of the time just normal driving the shifts will hold until I let of the pedal. I installed a new tps on the cummins and new range sensor and vss with no improvements. Mark is there a way to test the range sensor? I've seen where just a little adjustment can change things, I played with it one night because my backup lamps weren't coming on and fixed that with a slight adjustment. My trans builder is no help and I know squat about this stuff.
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post #6 of 6 (permalink) Old 12-13-2014, 02:33 AM
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Re: E4OD problems with PCS

You could read the voltage of the range sensor in each position.

Mark
Former Ford Automatic Transmission Engineer

“The good thing about science is that it's true whether or not you believe in it.” ― Neil deGrasse Tyson
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