fannitti

Got a 00 xj just put the trans cooler in and need to know what lol e goes back to the trans top of the radiator or bottom? Also what size fittings do I need to make the splice?

EZEARL

Didn't the cooler come with hoses,clamps,and fittings?

Big THANKS to CCKen:
https://www.cherokeeforum.com/f2/gre...e-6558/index4/

fannitti

No didn’t come with fitting

Stroked98Xj

fannitti

Top line? That goes to trans return

EZEARL

Bottom line shows blue (cold fluid) in the link I posted. That would be the return. 10* and windy here or I'd go out and double check for you. LOL

fannitti

Blue is return cold line to trans then bottom

fannitti

How come everything I read people say top is return

EZEARL

Still haven't checked mine but just remember that the rear line in the trans is the return line.

fannitti

Yea looks like the bottom then so that’s where I’ll tap to have it go to the aux cooler and sensor

EZEARL

Sounds good.

fannitti

Someone correct me if I’m wrong

EZEARL

Just checked and my return is on the bottom. Did mine per CCKen's link yrs ago but just wanted to double check.

fannitti

Ok great thanks

Tbone289

That is incorrect. Top line is return. I am 100% certain that is true on my '00. If you want to double-check me anyway, the return line runs to the back of the transmission. Follow that to the radiator, and you will find that is the top line. Your aux cooler ideally should be positioned the same way--with the inlet on the bottom and the outlet on the top. This insures that air is purged out of the lines properly. That diagram above from the FSM is notoriously wrong and confusing.

Just splice your aux cooler into the soft portion of the return line with 3/8 brass barbed splices.