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What line is transmission cooler return line?

Tiny
ERIC SUNDSTROM
  • MEMBER
  • 2004 DODGE DAKOTA
  • 3.7L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
I am trying to figure out what line is the transmission cooler return line from the radiator.

I would like to add an auxiliary transmission cooler and hook to the line returning
from the radiator to the transmission.

I want the oil to flow to the aux cooler
after flowing through the radiator

I believe this is the 42rle transmission.
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Saturday, December 4th, 2021 AT 4:14 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
Hi,

If you look at the side of the transmission where the cooling lines are located (passenger side) you'll see two steel cooling lines, one above the other.

The one on the top is the supply to the radiator and the bottom one is the return from the radiator.

Take a look at the attached pic.

Let me know if this helps or if you have other questions.

Take care,

Joe

See pic below.
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Saturday, December 4th, 2021 AT 9:19 PM
Tiny
ERIC SUNDSTROM
  • MEMBER
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Thank you!
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Sunday, December 5th, 2021 AT 3:19 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,128 POSTS
You're very welcome, Eric. Let me know if there is anything you need as far as pressures or testing.

Take care,

Joe
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Sunday, December 5th, 2021 AT 4:30 PM

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