[HotWaterJoe]

I'm wondering what is the best way to cool down the Aisin transmission?

1. Idle in Park,
2. Idle in Neutral.
3. High speed idle.

The reason I ask is that yesterday I had to backup the trailer quite a bit and saw the Aisin trans temp at 195 when I was done. I wondered what I should do to get the trans temp down. I thought should I just turn it off or is there a better way?

We have a 2015 Ram 3500 Cummins/Aisin SRW.

Thanks,

Bill

 

[lpennock]

High idle. 195 isn't hot, don't worry about it until 210-220.

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[Danderson]

Got low range?

 

[HotWaterJoe]

High idle. 195 isn't hot, don't worry about it until 210-220.

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Do you think it should be in Park or Neutral? Or does it make any difference?

Bill

 

[HotWaterJoe]

Got low range?

Ya know I did not even think about that. I do have 4 wheel drive. Do you think 4 Low would keep the trans cooler?

Thanks,

Bill

 

[lpennock]

Do you think it should be in Park or Neutral? Or does it make any difference?

Bill

No difference.

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[BrianF]

No difference as far as I know. Most new autos should constantly be pumping and circulating ATF and though the cooler if the thermocouple is open.

The brother in law has a 1995 Jeep YJ with the 3 speed auto. It will not circulate ATF though the coolant circuit unless it is in drive, which is a funny little thing.