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Hi,<br />
Maybe this will assist you.<br />
<br />
&quot;The return transmission line (the line in which transmission fluid flows from the transmission cooler back to the transmission) is located near the bottom of the radiator. There's two transmission lines connected in this location, and the bottom line is usually the return line.&quot;<br />
<br />
Down the page you gets tips on the flushing. Good luck.<br />
<a href="http://www.allpar.com/eek/atf.html" rel="ugc">http://www.allpar.com/eek/atf.html</a>
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Hi,
Maybe this will assist you.

"The return transmission line (the line in which transmission fluid flows from the transmission cooler back to the transmission) is located near the bottom of the radiator. There's two transmission lines connected in this location, and the bottom line is usually the return line."

Down the page you gets tips on the flushing. Good luck.
http://www.allpar.com/eek/atf.html [http://www.allpar.com/eek/atf.html]

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I have a 1991 Chrysler New Yorker 3.3 L. I am about to flush the AT fluid because I am switching from +3 to +4. The car has 80,000 mi. Which hose is the return from the AT fluid cooler?<br />
<br />
I already drained the pan and changed the filter
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I have a 1991 Chrysler New Yorker 3.3 L. I am about to flush the AT fluid because I am switching from +3 to +4. The car has 80,000 mi. Which hose is the return from the AT fluid cooler?

I already drained the pan and changed the filter

Looking for a transmission diagram

In addition to ignition, power and monitoring gauges and lights, today's motor vehicles feature computerized engines, transmissions and braking systems, electronic mapping systems, Bluetooth and Internet connectivity, sensors that detect other vehicles, motorized seats, and digital audio and video systems; several manufacturers are producing electric and hybrid automobiles and self-driving cars.