Alrighty... so it appears that when I went to first cut my line and my pipe cutter fell (I didn't think it notched in that deep) I placed it a few inches above the original position... My compression fitting is not leaking at all (Yay!) but now my line has a small hole in that makes my jeep look like its bleeding (guess my tranny fluid is still good haha). So what would be the best way to repair this puncture? Just cut it out and add another compression fitting?

 

bump

 

"So what would be the best way to repair this puncture?"

Replace the line.

 

Yea that's what I'm going to do. For a quick fix I cut that puncture out and added an additional compression fitting. My plan is to install a trans cooler and just replace all the lines at the same time. So hopefully that will happen in the next few months. Any who here are some pics













Has 10 different colors you can choose from I think.... I like the red though...


I also found this etched into the grease/dirt....




I must find this "Karlos"....

 

Which line is the sending unit mounted in....front or rear? What temps r u seeing while driving?

 

Keep using the wrong tools and it will bite you, sooner or later. Maybe a little bit, sometimes a lot.


As for the trans cooler, I ran across an interesting discussion about that on another forum. The question was asked whether the cooler should go BEFORE the built-in trans cooler (in the radiator), or AFTER the built in cooler, or INSTEAD of the built in cooler.

The consensus among the professional mechanics on the forum was that the aftermarket trans cooler should go BEFORE the built in radiator cooler. The reasoning was this:

1. You want to dump heat out of your transmission, but you don't want to add that heat to your engine. Running it through the radiator first dumps most of the excess heat into your radiator, which adds to the heat load your radiator is trying to get rid of. That ain't good. Most of the time it's probably fine, but when you really are under load, when you need it most, that's exactly what you DON'T want to be doing. Better to dump that excess heat BEFORE it gets to the radiator.
2. There is an ideal operating range for your transmission. Too cool is not nearly as bad as too hot, but it's not ideal, either. By dumping most of the excess heat before going through the radiator, the radiator cooler can then take it down a bit more if needed, or even warm it up, if needed. Because the radiator cooler is operating at a relatively constant temperature, and is designed to put your trans fluid at the right temperature, it will regulate the trans fluid down OR up as needed, thus keeping your trans fluid in the ideal operating range.

I hadn't known that too cool was a bad thing before reading that discussion but I've done some research since then, and everything I found confirmed what I'd read.

Seems to make sense to me.

FWIW, YMMV, see dealer for details, void where prohibited, film at 11.

 

I agree 100% with you... I'm building my tool collection up I just need more money!

Thats great info though about where to install the cooler, thanks a bunch!

Front, return line. I haven't driven it yet... Lost about a qt of tranny fluid during the process and had to work today. Going to fill it back up in the morning and drive it around for an hour so... I'll record my temps on start up and 15 min intervals.

 

The OE factory XJ auxiliary tranny cooler is in-line with and "after" the rad mounted cooler......likewise, B&M recommends for max performance that their auxiliary coolers be mounted in-line with and after the factory rad tranny cooler.

 

The forward most line on the passenger side of the tranny is the hot fluid exit line, the rear is the cooled fluid return line. The front line is the correct line to locate the gauge sending unit in, as u have done.

My guess is u will see very low tranny fluid temps compared to engine coolant temps when driving normally (not towing, cool/cold ambient temps).....that's what I have noticed in our other vehicles using the ScanGauge to monitor tranny fluid temp. I haven't figured out how to program the ScanGauge Xgauge to read AW4 tranny temp. The AW4 protocol may not be supported by the ScanGauge, regarding tranny fluid temp.

 

The sweet spot for ATF is 170-190 degrees. Over 200 for any length of time and the trouble starts.
Problem is your radiator runs right in that range, imagine what temperature that 190-ish degree fluid will hit once it gets through the torque converter....
I typically install a large outboard cooler *instead* of the OEM cooler. Haven't had to rebuild an automatic since.
Can't say I've ever seen a transmission fail from running too cool.

 

That pretty much nails it right there....running cool is a non-issue. After a days worth of stop-n-go driving around town, not towing, but with cold ambient temps (it is winter), tranny fluid will be 100F-120F in our other vehicles according to the ScanGauge.

I just towed a 6'X12' enclosed tandem axle UHaul (loaded) from West Texas to central Oklahoma with our GMC Canyon P/U. Tranny fluid temp finally hit/peaked 140F rolling into Norman. Have I seen 200F+ tranny fluid temps.....hell yeah, 100+ ambient and towing.

I've owned a couple of other vehicles over the years with factory installed auxiliary tranny coolers and thos coolers have been install after the rad cooler as well, not ahead of the rad cooler.

 

OP, that gauge looks awesome. Where are you mounting it?

 

Picked it up on eBay. GlowShift makes them, and it has like 10 different colors you can cycle through... The pics don't do it justice, it looks real slick... and I'm going to mount it below my ashtray, picked up a 6-switch panel with gauge slot from prime 4x4. Gonna install it all 2morrow, i'll post up pics when done.

 

Got it tested today...finally! Took about 15-20minutes to register the temp but then it stayed mostly around 140-155. Hit a few times but then dropped back down. Peaked at 175 when I was waiting in line at Starbucks. Pretty nice little gauge! Has a recall button to see what the highest peak value was, I programed it so that if it gets to 190 a warning light comes on and it also beeps.


Right now its just dangling from some wires so I'll get it installed tonight I hope, if not tomorrow night sometime. Will post up pics when finished.

 

Sweet! Good progress. I want to get this done eventually