a4ld transmission cooler lines mix up.

[chessman21]

a replaced transmission and iv got the two cooler line mixed up .. Wich one is which and which one does it go to on radiator? Or does floq direction in radiator mater? or does have a directional valve in it or something?

 

[RonD]

No, doesn't matter.

If a line doesn't reach or is too long then it is in the wrong place.

 

[chessman21]

lines were cut off at same length. .with two equal lengths of hose with clamps for re connection. how bought this can some one tell me which in and which is "out "on the tranny? is it the lower that is the presser line? If i figure that out maybe radiator is marked and ill have it. And how about only reasonably intelligent reply's plz.

 

[RonD]

For the A4LD, 4R44E, 4R55E, and 5R55E the top connection is the return line at the transmission end.

As seen here: http://www.txchange.com/cooler.htm#cooler return line chart

If radiator has trans cooler at the bottom there is no direction of flow, but lower rad hose connection side may be used for Return line because of coolant flow
If at the side of the radiator the "out to transmission"(return line) is usually at the bottom, but it doesn't really matter as this is a heat exchanger so would have the same cooling effect in either direction.

Radiator coolant flow is top to bottom, so hot coolant from engine enters at the top and "Cooled" coolant exits at the bottom.
Newer rads are usually crossflow(side to side), and side mounted trans cooler would usually be at the opposite side as the upper hose, so on the "cooler" side.

 

[chessman21]

thxs, thats what i needed to know..