Integrated trans/ac cooler, what is the small cooler in front of it? 2009

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JohnUSA

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Nov 6, 2018
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Location
Tacoma, Wa
Ram Year
2009 Laramie
Engine
5.7 Hemi
So, the integrated a/c transmission cooler unit developed a leak. Shop replaced it. The replacement developed a leak, shop replaced it again under warranty.
I'm seeing fluid on the driveway again, so I thought I would take the grill off for a visual inspection, maybe get a mirror in there or something. I also have a flexible endoscope.
In front of the cooler, there is a smaller cooler, like 5" by 12", to take a guess.
What is that cooler for?
 

Wild one

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Ram Year
14 Sport
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5.7
So, the integrated a/c transmission cooler unit developed a leak. Shop replaced it. The replacement developed a leak, shop replaced it again under warranty.
I'm seeing fluid on the driveway again, so I thought I would take the grill off for a visual inspection, maybe get a mirror in there or something. I also have a flexible endoscope.
In front of the cooler, there is a smaller cooler, like 5" by 12", to take a guess.
What is that cooler for?
Power steering
 

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