Question about R34 GTT A/T Solenoids

[DraftySquash]

So.... when I'm finally getting around to having my power steering leak sorted, now it looks like I've got the same issue most A/T Skylines are having. My A/T light will randomly come on and I'm stuck in 3rd gear until I turn the car off and on again.

Only 3 weeks ago I did a complete transmission service: Oil flush + new gasket + new filter. This came out of nowhere!! It wasn't like the car was driven hard. I drove about 3 mins down the road to get fuel and boom!!! 

Anyway, I have a few questions and hope you fine people can help me out here. All questions are in red.

1. The solenoids:
I was looking at the parts catalogue in Amayama and I could only find the Solenoids as an assembly. https://www.amayama.com/en/part/nissan/319404ax05
I read in another thread that Solenoid A = 31940-4AX02 & Solenoid B = 31940-4AX05 but the Amayama product has only the code of B.

Is this the right part? Can anyone who has done the Solenoid changes or seen them confirm if this is the complete set of A & B?

 

2. Gasket and Filter:
I'm not going to try change the solenoids myself because it seems difficult to do in a home garage with just 2 jack stands. I plan to take it to a shop and get it changed. I was also going to buy the transmission sump gasket at the same time so I don't reuse the same gasket.

Should I just use the existing gasket as it has only been on the car since OCT 19th? (~3 weeks)

Should I be buying a brand-new gasket and a filter? Does this job involve taking the filter out?

 

Thanks in advance to everyone. It's hard to find a video of someone doing a solenoid change on a R34 so any help you can give answering my remaining questions would make me less stressed.

[joshuaho96]

On 11/4/2024 at 5:10 PM, DraftySquash said:

So.... when I'm finally getting around to having my power steering leak sorted, now it looks like I've got the same issue most A/T Skylines are having. My A/T light will randomly come on and I'm stuck in 3rd gear until I turn the car off and on again.

Only 3 weeks ago I did a complete transmission service: Oil flush + new gasket + new filter. This came out of nowhere!! It wasn't like the car was driven hard. I drove about 3 mins down the road to get fuel and boom!!! 

Anyway, I have a few questions and hope you fine people can help me out here. All questions are in red.

1. The solenoids:
I was looking at the parts catalogue in Amayama and I could only find the Solenoids as an assembly. https://www.amayama.com/en/part/nissan/319404ax05
I read in another thread that Solenoid A = 31940-4AX02 & Solenoid B = 31940-4AX05 but the Amayama product has only the code of B.

Is this the right part? Can anyone who has done the Solenoid changes or seen them confirm if this is the complete set of A & B?

 

2. Gasket and Filter:
I'm not going to try change the solenoids myself because it seems difficult to do in a home garage with just 2 jack stands. I plan to take it to a shop and get it changed. I was also going to buy the transmission sump gasket at the same time so I don't reuse the same gasket.

Should I just use the existing gasket as it has only been on the car since OCT 19th? (~3 weeks)

Should I be buying a brand-new gasket and a filter? Does this job involve taking the filter out?

 

Thanks in advance to everyone. It's hard to find a video of someone doing a solenoid change on a R34 so any help you can give answering my remaining questions would make me less stressed.

https://nissan.epc-data.com/skyline/er34/3945-rb25det/trans/317/31940N/

The pictures of the part you're talking about is clearly not just one solenoid. You can see another picture of it here: https://www.alltranz.com.au/shop/drivetrain/automatic-transmission/RE5R01A/product/9305/

The 4 speed automatic in the GTT is Nissan corporate stuff. You can search up similar jobs done on a Frontier or Pathfinder with a RE4R01B to get an idea for what the internals are going to look like and the procedure like this: