dumbagain

2000 XJ 4.0L Automatic w/ A/C

radiator replaced 1.5 yrs ago. just developed a leak at the radiator where a transmission line enters it. its drivers side just under where the radiator cap is. i took out the air filter housing, detached the tranny line, took out the brass adaptor piece that has female threads on both sides (one side rounded for the flare in the tranny tubing) and tightened the larger flat nut and washer. i put some teflon tape on the brass piece and reinstalled it and the tranny line.

it seems that it wants to leak either where the brass adaptor piece threads into the brass piece coming out of the radiator or where the large flat nut and washer go against the radiator. i am leaning towards it leaking from the radiator / large nut area.

my question is if there is supposed to be some sort of gasket/washer behind the large nut and washer against the radiator? i am scared to really wrench down on that nut being that its going on a brass thread against a plastic radiator.

i drove it around the block and it seems to drip a little less but still leaking.

any thoughts?

ck1

appears that maybe the line has been either crossthreaded (at line to tank fitting) or overtightend (fitting on tank) at some point...may be able to stop it with teflon tape (band aid)..just make sure that you put tape away from the inside part of the line and you should be ok. worth a try...
Cameron

simpsons1201

Same exact issue. Any fix yet?