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ATF quantity for radiator swap

1K views 10 replies 6 participants last post by  autopc25 
#1 ·
Hi guys.

I am about to replace my radiator as it is seeping some fluid at the top reservoir. I have and 42RLE transmission so the ATF flows through the rad at the bottom.

How much fluid will I lose and do I need to clamp the bottom pipes closed to prevent more fluid from draining out while I install the new radiator?

The reason I am asking is because the MOPAR ATF +4 is the only ATF+4 available in my courtry and it comes at a premium so I only want to buy what I need.
 
#6 ·
Jerry Bransford said:
Personally I'd let it drain until it stops on its own. That's a great way to do a partial ATF change which is never a bad idea. Top it back off with ATF+4.
That makes perfect sense and I would not mind doing that but money is tight at the moment -2nd little one on the way in 6 weeks. Atleast I did an atf and filter change 2500 miles ago.
 
#8 ·
Jerry Bransford said:
I wouldn't do a partial change either after only 2500 miles, congrats on the upcoming blessed event!
Thanks. We are very excited!

Should receive my new rad tomorrow and then I need to install the new one before Saturday - taking my wife and 3 year old boy to a Jeep Spring day. 1 September is officially spring over here. At this point we have 60 confirmed Jeeps attending this day which we are thinking would be some kind of record over here.
 
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