Whats Up Camaro Forums! First Post!!

Onto the Issues at Hand.
First.
I Bought a 95 Camaro 3.4L 4L60E about a week ago, it had no reverse and it had a tranny cooler line leak, swapped out trannys and i replaced the line. On the OLD Trans it was leaking from the bottom trans cooler line out of the fitting. now on the NEW trans and the NEW line, its leaking from the bottom line again in the same place and its driving me crazy. there was a crack on the flare of the old line, and the new line is perfect, its not as fast of a leak as before but its a leak.

Second. Having a leak in the line, would that cause shifting from 1-2 be late?

 

Make sure it's tightened and not cross threaded. As far as shifting late...what rpm does it shift at under light throttle? Mine (4L60) usually shifts around 2500-2700 rpm on light throttle because of the shift kit. If I'm not mistaken though, the leak would cause shifting problems because it'd effect the pressure.

 

4l60e shifts are determined by a few different sensors. vss, tps, maf, map, and cam or crank sensor for rpms. i had the same problem with leaking, i ended up putting rvt on the brass adapter threads and the threads on the tube fitting, i even put some on the area between the tube fitting and the tube being careful not to get any on the inside. it finally stopped. i pretty sure it was leaking through the threads.

 

Its not cross threaded, im not the retarded lol. im coming to the conclusion that maybe the line is not completely seated in the fitting which is making the fluid come up around the flare. it usually shifts at about 2700-3k but i dont have a shift kit in it, even thought i was thinking or putting one it because it makes the tranny last much longer.

 

when i first got the car it ran rough like sounded like it miss fired in 2 cylinders, doing some diag, i noticed the MAP sensor was bad and replaced it, ran pretty good other then the little stupper on idle, i did not check any other sensors yet. RVT is what? kinda like teflon tape? and ive heard that its not good to put anything on the threads to anything that leads into the tranny.

 

yah well i was outa ideas to get the dang leak stoped.

 

[quote= RVT is what? kinda like teflon tape? and ive heard that its not good to put anything on the threads to anything that leads into the tranny.[/quote]

RTV , not RVT, stands for Room Temperature Vulcanizing (elastomer sealant). You dab the stuff on clean metal surface and it turns into a rubber like coating. When the stuff forms a skin it is time to assemble the parts. The stuff comes in many different varieties and temperature ratings. Avoid using the silicone based stuff where it can get into the exhaust, as it will kill the O2 sensors.

 

Flare fittings are designed to seal where the two tapered pieces meet. The threads are not meant to, nor do they form a seal like pipe threads do. The flare fitting nut is only there to hold things together. You can use a sealer on the threads if the flare isn't sealing, but there really isn't anything to prevent oil/fluid from leaking from between the nut and steel line....eventually. You used new lines, are the fittings on the trans new as well?

 

yes the fittings was new. im thinking that maybe the line is not completely seated fully on the trans fitting. follow me? like maybe it needs to be bent just a little more with the bending tool but its kinda hard because the nut on the line is in the way and i failed on two other attempts while trying to bend them to much in one place. BUT if thats not the problem i was thinking of just swapping the top fitting off the old trans to the new trans as the bottom fitting and hoping to see the outcome be in my favor.

 

may work, there is not allot of pressure in the lines unless the cooler is plugged. did you blow air through the cooler to clean the old oil out?