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Discussion Starter #1
SOOOOOOOOOOO

buddy was driving around and when he came to a stop it would not come out of 3rd gear..
so turns it off fires it back up and it works until you come back to a stop..

Question is, do i just buy the valve body, or do we spend the extra money and get a new TCM with it.. regardless it has to bring it to nissan and be re-flashed...

opinons?
 

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I remember someone having issues with his RE5 trans and fixed it by removing the TCM from the valve body and carefully cleaning the electrical contacts for the TCM on the valve body. He found sludge under the TCM when he removed it.
Whether that will work for you or not is a question I cannot answer. It's also difficult to answer the question without knowing exactly what is wrong with your transmission. Have you tried looking at the A/T symptom chart in the factory service manual?
 

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Discussion Starter #3
I have not.. i have done some readying saying there is a solenoid that goes bad, but when replaced its still the same issue because the TCM cooked itself.. Attached i have the code that my GT tuner pulled up, Also i have yet to look at the FSM for any advice
 

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Oh yeah...P1757 front brake solenoid malfunction. The solenoid usually doesn't fail nor does it cook the TCM (people just assume so), but the pins break that make the circuit to the solenoid. It can be soldered, but it's usually not the thing the typical DIY'er does. The other fix is to replace the TCM/valve body assembly. Here's a vid that shows what fails:

 

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this one is more thorough:

 

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What a great and helpful video you posted. After watching him do that I’d do it myself if I needed to. If on my back I’d just get someone to help hold things coming down and going back in place. Personally I’d work on a large cookie pan on the bench to catch any oil and screws while disassembling.
Thanks again.
 

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Discussion Starter #7
Yes thank you for that video.. Ill actually be tackling this tonight .. so we will see how she goes.. then this weekend is timing chains and tensioners lol
 

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Yes thank you for that video.. Ill actually be tackling this tonight .. so we will see how she goes.. then this weekend is timing chains and tensioners lol
Good luck on this repair, I’m looking forward to hearing it’s all fixed.

Clint
 

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Discussion Starter #10
Curious, how many miles are on the truck?




My 07 has 139k and the chains are singing.. my buddys 06 has 158k? i think..



We go the valve body out last night witch was easy except that the last bolt we needed to take out wasnt a 10mm, it was a 5/16s and well we had to scramble to find one of those



Needless to say we got it apart last night but we wont work on it till tonight after work
 

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Interesting, how did an sae bolt end up in a metric vehicle, lol.

Clint
 

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If we are talking about the size of the head of the bolt and not the threaded part, it's 8mm, which is the same size as 5/16".
 

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Discussion Starter #14
If we are talking about the size of the head of the bolt and not the threaded part, it's 8mm, which is the same size as 5/16".

Yes the size of the head.. I tried both a 6 point 8mm and a 7mm, one to large one to small.. had to use a 5/16 6 point and it fit flawlessly, i couldnt rightly wrap my head around it but thats how it happen
 

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I don't know, either. 5/16" is 7.9375 mm. I interchange 8mm and 5/16" sockets all the time. I guess the bottom line is "use whatever works!" Maybe your 8 mm socket is a little worn out?
 

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How are you making out with this issue?

Clint
 

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Discussion Starter #17
How are you making out with this issue?

Clint
We made out good.. installed the refurbished unit, filled it up and so far no issues, we didn't even have to re flash It.. it relearned itself with in a few miles and she is going strong!
 

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There is nothing more satisfying than fixing your own things.
Was it the same Two pins in the video that broke?
Was it hard to solder them so you felt the were secure?
Think about all the $$$$ that you saved on this, good job.

Clint
 

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Discussion Starter #20
There is nothing more satisfying than fixing your own things.
Was it the same Two pins in the video that broke?
Was it hard to solder them so you felt the were secure?
Think about all the $$$$ that you saved on this, good job.

Clint
we have not dug into it that far yet.. been busy with goped and dirt bike things lol once we pull the cover off and dig into it i will update you and let you know what we find
 
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