5r110w issues - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 13 (permalink) Old 09-11-2017, 02:42 AM Thread Starter
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5r110w issues

Hey guys, new to the forum and the powerstroke world.

I picked up a bulletproofed 04 6.0 last night with some trans issues and I'm wondering if you guys can possibly point me in the right direction to fixing this thing.

Details on the truck. Egr delete, headstuds,downpipe and livewire ts programmer.


Now for the issue. The truck will takes off fine shifts into second perfect but will not shift into third. It doesn't act as it's slipping and will just gain rpm until you let off. It doesn't hesitate or even act like it's trying to shift.

The other issue is reverse. When the tranny is cold the truck will back up but shudders as the tranny gets warm it pretty much completely loses reverse.

The fluid is clean, does not smell burnt, no metal on the dipstick.

It is throwing codes p0761- shift solenoid c performance
and p0766-shift solenoid d performance.

I'm wondering if I could possibly just have a solenoid issue going on or if you guys think it's a clutch pack issue? If it's solenoids I plan on replacing them myself but if it's in the clutches I'm probably gonna bring the tranny somewhere.

Any pointers, thoughts and things to check out would be greatly appreciated!
Thanks
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post #2 of 13 (permalink) Old 01-03-2018, 07:35 PM
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Re: 5r110w issues

EXACT SAME ISSUE HERE! One year older but the exact same issue! Anybody willing to help out here?
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post #3 of 13 (permalink) Old 01-03-2018, 08:20 PM
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Re: 5r110w issues

well if the fluid in the pan is clean then the clutches are fine I have dealt with the solenoid on these and when I did it I just replaced them all. as was recommended to me when I did it. If you drop the pan and the fluid is full of metals and clutch face then u got bigger problems pull the pan and it should give a good indication. now there will be some metal on the magnet and its normally fine just post a pic of the magnet after u drop the pan.

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post #4 of 13 (permalink) Old 01-03-2018, 09:12 PM
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Re: 5r110w issues

Since its a performance code it means the computer told the solenoid to function and third didn't happen, which could be the solenoid mechanically not working, or the intermediate clutches have failed. But reverse uses a different clutch pack, and the fact that it has it cold and not hot means its loosing pressure when the fluid thins out when hot. The shuddering happens when there isn't enough pressure to keep the clutches applied.

The fluid apply for both sets of clutches involved runs through the center support in the transmission, the problem is going to be related it that, meaning it needs to come out and be gone into more than likely.

You could try replacing the two solenoids in question, but I pretty sure it won't solve the problem.
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post #5 of 13 (permalink) Old 01-04-2018, 01:53 AM
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Re: 5r110w issues

P0761- shift solenoid c performance sets when the PCM commands the solenoid on and then detects that the armature in the solenoid didn't move. The only way this code can set is a solenoid issue. A failed clutch cannot set this code.

There is a very good chance that replacing solenoid C will fix this problem.

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post #6 of 13 (permalink) Old 01-04-2018, 02:26 AM
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Re: 5r110w issues

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Originally Posted by Mark Kovalsky View Post
P0761- shift solenoid c performance sets when the PCM commands the solenoid on and then detects that the armature in the solenoid didn't move. The only way this code can set is a solenoid issue. A failed clutch cannot set this code.

There is a very good chance that replacing solenoid C will fix this problem.
Possible, but that doesn't explain the P0766 code, which ties in with the shuddering in reverse after the fluid warms up .

A performance code means the computer expected to see a desired result after commanding the solenoid to do something, the two possible results are the solenoid operates and you have a corresponding gear engagement, if it doesn't see the corresponding rpm drop indicating a gear change, it throws a performance code, if it had failed electrically it would have thrown a P0760 or P0763 code for a problem with the electrical aspect of it.

It could possibly be related to the center support bolt being loose, if someone built it in the past and didn't torque it correctly , as fluid for both the intermediate and direct clutches run through the center support.
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post #7 of 13 (permalink) Old 01-04-2018, 01:26 PM
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Re: 5r110w issues

No, that isn't what sets a P0761. That sets when the PCM detects that the armature inside the solenoid hasn't moved. It doesn't look at what the trans did after commanding the solenoid, it looks at the solenoid itself. When the armature moves inside the solenoid it induces a voltage that is monitored by the PCM. If the PCM doesn't see this inductive spike it knows that the armature hasn't moved. That's how the solenoid performance codes are set.

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post #8 of 13 (permalink) Old 01-04-2018, 03:37 PM
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Re: 5r110w issues

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Originally Posted by Mark Kovalsky View Post
No, that isn't what sets a P0761. That sets when the PCM detects that the armature inside the solenoid hasn't moved. It doesn't look at what the trans did after commanding the solenoid, it looks at the solenoid itself. When the armature moves inside the solenoid it induces a voltage that is monitored by the PCM. If the PCM doesn't see this inductive spike it knows that the armature hasn't moved. That's how the solenoid performance codes are set.
Okay, so we'll agree to disagree, How do you explain the shuddering in Reverse after it warms up ? because the P0766 is a performance code also,

by the way, here is Alldata's diagnostic explanation of P0761 , as well as the other codes relating to the electrical aspect of the solenoid
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post #9 of 13 (permalink) Old 01-04-2018, 03:50 PM
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Re: 5r110w issues

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Originally Posted by transfixer View Post
Okay, so we'll agree to disagree, How do you explain the shuddering in Reverse after it warms up ? because the P0766 is a performance code also,

by the way, here is Alldata's diagnostic explanation of P0761 , as well as the other codes relating to the electrical aspect of the solenoid
yes and if it doesn't operate properly then u will not get the proper fluid to the clutch pack. i have dealt with these trans alot and the solenoid are known to fail. every time I have gotten any of those code it has always been the solenoid.

Sent from my super awsome outdated new Samsung phone whose 500mA draw hasn't over-overloaded multiple already over rated branch circuits just beyond the kaboom point and caught everything on fire yet.


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post #10 of 13 (permalink) Old 01-04-2018, 04:05 PM
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Re: 5r110w issues

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Originally Posted by masakimm View Post
yes and if it doesn't operate properly then u will not get the proper fluid to the clutch pack. i have dealt with these trans alot and the solenoid are known to fail. every time I have gotten any of those code it has always been the solenoid.
It may turn out to be that, but in my world of repairing/rebuilding all types of automatics across the board, we divide codes into performance codes and electrical circuit codes for diagnostic purposes,

Performance codes : meaning the computer didn't see the result of the command that it was expecting to see . Normally happens when the solenoid malfunctions mechanically, or a valve is stuck, or a problem with the clutch pack

Electrical circuit codes: the computer did not get the correct voltage/amp feedback it expected, or detected voltage when it wasn't supposed to be there, or no voltage when it was supposed to be there.

I realize the 5R110W is a somewhat different animal because the solenoids do the work of what you normally would expect other valves to do, but the fact that both of these clutch packs are tied in with the center support, makes me suspicious of a leak there, mainly because of the good reverse when cold, and shuddering/not holding good when the fluid warms and thins out. Most solenoid will act up cold, especially if there is contamination in the fluid, so solenoid D is doing opposite of what we would normally see if it is the cause of the shuddering in reverse.

Don't mind being wrong, and stuff like this is hard to diagnose without actually being there, and seeing PID's on the scanner to verify certain things. also can't replace in person seat of the pants drivability.
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