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Discussion Starter #1
Alight, here goes.

First off just to be straight I know nothing about transmissions. I'm not sure what transmission I have other then its a torque shift, after reading some thread I'm assuming it's a 5R110 maybe. But anyways I am having some issues and need some advise on a direction to take.

While driving the truck will randomly down shift (when it does this it slams hard into gear), rev past the normal shift point or when I stop at a red light it will not down shift and I'll start in a higher gear until I give it enough gas to get it to down shift. All of these issues are occuring under normal driving. I only drive about 7 miles to work a day and the tranny temp was 135* on the way home today. I do have a bullydog and do not see any codes. There is also a shutter when going into reverse, which I have read on here to be normal but it has gotten much worse in the last couple months.

I'm thinking I have about 30k on the last fluid flush and filter change, it was perfomed by one of those quick lube places so I really have know idea if it was done right or not. Truck has a total of 103k miles on it.

The only other then I can say is I do some towing once in awhile very rarley over 10k but I do have 37" tires. Oh and fluid levels are ok.

Any help input or solutions would be appreciated.
 

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yes a 5R110

very sensitive to the proper fluid being used Mercon SP or the New LV

this trans uses electronic solenoids to shift and they don't tolerate much in the way of fluid issues

the good News is one of the Original Engineers is a member here so Lets See what Mark thinks


you may also want to check for trans specific codes that may be stored
 

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Discussion Starter #3
Just to add a little humor, I did go to the dealer and find out about a trans flush and filter change. The service manager advised me that "that wouldn't be a good idea it will only speed up the faliure time" then when I asked if it was a heated flush they told me that "I have never heard of that and is not needed, just drain, change filters and refill". I didn't get the warm and fuzzy about going back there for work. And yes they did see my truck and know that it was a diesel. :confused:
 

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Discussion Starter #4
I'm not sure if the bullydog see's trans codes and if not where I need to go or what I need to have to see trans specific codes.
 

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Discussion Starter #5 (Edited)
And to muddy up the water a little more I just got called back into work and the truck reved past the shift point 3 times in a row slamming real hard everytime then the tow/haul light came on and flashed until I cycled power on the truck. Still no codes on the bullydog.
 

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Discussion Starter #6
3rd to 5th seems to be the biggest issue right now.
 

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I'm thinking I have about 30k on the last fluid flush and filter change, it was perfomed by one of those quick lube places so I really have know idea if it was done right or not.
This is how the stories get started about having a flush then transmission problems. Most likely this flush DID cause your problems.

Unless you specifically told them what fluid to use, they used some generic fluid. That will kill your solenoids. Your symptoms indicate that you have more than one stuck solenoids.

And to muddy up the water a little more I just got called back into work and the truck reved past the shift point 3 times in a row slamming real hard everytime then the tow/haul light came on and flashed until I cycled power on the truck. Still no codes on the bullydog.
Then the bullydog can't read transmission codes. When the tow/haul light flashes at least one code was stored.

3rd to 5th seems to be the biggest issue right now.
Those are the hardest shifts to make, so when the solenoids go bad they are the first shifts that show problems.

I think you're going to need to flush with a hot flush machine, and change ALL the solenoids. I hope you have a healthy bank account.
 

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Discussion Starter #8
This is how the stories get started about having a flush then transmission problems. Most likely this flush DID cause your problems.

Unless you specifically told them what fluid to use, they used some generic fluid. That will kill your solenoids. Your symptoms indicate that you have more than one stuck solenoids.


Then the bullydog can't read transmission codes. When the tow/haul light flashes at least one code was stored.


Those are the hardest shifts to make, so when the solenoids go bad they are the first shifts that show problems.

I think you're going to need to flush with a hot flush machine, and change ALL the solenoids. I hope you have a healthy bank account.
Well belive it or not this is the best news I've had today, thanks for the reply. Anybody know any tranny shops in middle GA? Would it be a better idea to just replace the whole tranny? What trannys should I look at and what are the costs?
 

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those trannys are big $ like 3-4k

you may need to just do what Mark suggested and the solenoids are DIY serviceable

but finding a shop to do a proper heated flush may be a problem
 

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Discussion Starter #10
Alright again excuse my ignorance, could somebody tell me the solenoids I would need? I'll look the prices up from there. Yeah I have a feeling the shop will be the hard part considering the ford dealer gave me the deer in the headlight look when I asked them. I have a couple other dealers in the area I'll call maybe something in Atlanta.
 

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Discussion Starter #11
Am I on the right path here? What am I missing?

Auto Trans Valve Body Solenoid
Part #: 7G383
Pack Qty: 1
115.92

Shift and Throttle Pressure Solenoid
Part #: 7G391
Pack Qty: 1
1282.17 (275.00 core)

Auto Trans Valve Body Solenoid
Part #: 7J136
Pack Qty: 1
126.88
 

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I don't know if Mark suggest changing them all or just the problematic ones?


5R110 valve/solenoid body consists of 7 Solenoids:
1) PC-A <line pressure control> (assembly must be dropped)
2) TCC <Torque Converter Clutch>
3) SSPC-A <coast clutch>
4) SSPC-B <overdrive>
5) SSPC-C <intermediate>
6) SSPC-D <direct clutch>
7) SSPC-E <low/reverse>
Not every solenoid are different, there are 3 different types of solenoids <above>
(#1 EPC solenoid), (#2, 4, 5 & 7 are the same), (#3 & 6 are the same)

http://valvebodyxpress.com/images/pdfs/tech/5R110-W%20Tech%20Info,%20Solenoid%20Function%20&%20Operation.pdf
 

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the flush set Me back $280 at the dealer and some of that high cost is due to the $7 qt oil
 

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Discussion Starter #14
Well the tow/haul light started flashing again so I took it to autozone and advance and neither one of their scanners showed tranny codes. I'm assuming theirs don't read them either. I completely uninstalled my bullydog and the issues got 90% better, still an issue but perhaps this will buy me enough time to find a shop and the get the solenoids changed out.
 

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Discussion Starter #15
I think you're going to need to flush with a hot flush machine, and change ALL the solenoids. I hope you have a healthy bank account.
I'm guessing from this that Mark suggests changing them all.
 

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Well the tow/haul light started flashing again so I took it to autozone and advance and neither one of their scanners showed tranny codes. I'm assuming theirs don't read them either.
You're right, they can't read transmission codes. That's been well documented.

I'm guessing from this that Mark suggests changing them all.
Yes I do. There are seven solenoids, if two are bad the other five are not far behind.
 

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Discussion Starter #17
So if I got this right I need the following parts listed on this this link.

http://www.makcotransmissionparts.com/5R110Wsolenoid.html

1 - 16431 SOLENOID, 5R110W EPC '03-UP

2 - D16421 SOLENOID, 5R110W DIRECT/COAST '03-UP

and

4 - D16425 SOLENOID, 5R110W TCC/INTERM/ OVERDRIVE/LOW-REV

Is there something else? I gasket or "O" ring or something. Is there a better place to buy with cheaper prices or better quality?
 

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Here is an image of the solenoids.
http://igagoo.org/pictures/cmu/fschem_3002886.jpg

The part #'s 7j136 start with 3c3z but the solenoids in the row of three end in -ba while the other three in row of four end in -aa. I was told over the phone by tousely that there was a difference. You should be able to search these part #'s on their site and find a price difference. As well on fordpartsgiant.com but their prices aren't as good.

Google tousely ford, beats sunrise's prices. I've compared. Their website is pretty easy to use and parts answers pretty quick if you need to call. They're helpful and knowledgable.

I have two brand new in the box from tousely 7j136-ba solenoids for sale. ended up replacing my transmission instead. You can find them in the classifieds. and PM sent.
 
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