Trans temp gauge & B&M cooler.

[mrg]

I had been meaning to do this for ages and finally got a round to it as I had to do a filter change anyway. I wanted to mount the sensor in the pan so I got a B&M drain plug kit which is already tapped for the 1/8th temp sensor threads. You can get weld in bungs as well.



This needs a 1/2 hole drilled in to the pan. Since the auto pans are so cheap at the dealer, no really it was only $14, I bought a new one to mount the bung. The back of the pan on the passenger side is a perfect spot, lots of room on the inside (at least on my 42RLE). Here it is back on the Jeep.





I mounted my gauge in the center console, it barely fits with the E-Brake handle down. (Wow it didn't look that dirty to me.) The sensor wire was run through a little drain hole under the gear selector.



Next step is to hook up my B&M tranny cooler.



;D

[Paul Boudreau]

wow you foud and bougth someting that was made in canada and not in china, i never tougth you could still buy something that wasn't made in china!

nice work and neet idea for the drain plug bong , i wondered more then once on how to do this and now thanks to you i will know.

[smith]

Interesting... I too have an automatic Rubicon (42RLE).... what was the reason for the tranny cooler and temp gauge? Do you do a lot of towing? Or is it just for peace of mind etc..

Looks good. Can't believe anything at the dealer is $14 ..nice

[mrg]

Peace of mind mostly, and I love doing things.

[smith]

Apr 10, 2010 15:12:01 GMT -4 mrg said:

Peace of mind mostly, and I love doing things.

Bookmarked this write up... I may do it down the road at some point.

thx

[mrg]

Installed the B&M cooler in the grill, model 70264. Not plumbed in yet. You can remove a headlight and the mounting bucket and slip the cooler in that way. Next step hoses.

[Creepy]

In the same boat here, have been wondering about where to put that sensor. Didn't want goony bungs in the cooler lines.

Nice write up so far. If you find it, post which lines are pressure and return on the trans. for us auto guys.

I predict some towing at max capacity in my future.

[mrg]

The trans line on the passenger side of the radiator is the return line to the tranny.

[jeepfever]

Great idea, thanks for posting it. I've been planning a similar project but I was planning to put the sensor in the line to the tranny cooler. I like where you've placed the sensor, it looks like it would get an accurate temperature reading at the lowest point in the pan.

I've seldom overheated the tranny in my 04 Liberty while towing a heavy trailer but more often it overheats while on the trails in 4wd so I've been thinking of installing a gauge to tell me the actual temperature. I don't want to simply rely on the idiot light coming on to tell me I've already overheated the tranny.

[mrg]

Apr 12, 2010 10:53:36 GMT -4 mrg said:

The trans line on the passenger side of the radiator is the return line to the tranny.

I still cannot 100% verify this. Best way to find out is to start up the Jeep and feel which line gets hot first, that is the output line.

[Paul Boudreau]

take a peice of brake line , unplug both line , get the brake line betwen the 2 loose line, start the jeep , unplug the line the one squirting fluid is from and the on with out is to, now clean up the mess on the floor lol

[blacksheepxj]

Apr 13, 2010 5:37:45 GMT -4 mrg said:

Apr 12, 2010 10:53:36 GMT -4 mrg said:

The trans line on the passenger side of the radiator is the return line to the tranny.

I still cannot 100% verify this. Best way to find out is to start up the Jeep and feel which line gets hot first, that is the output line.

Normally the top line at the radiator is the "in" line. The bottom would be the return. But in the TJ and YJ etc the rad tank run left to right rather than up and down like in a real Jeep (XJ).

Great looking install though. Where did you get the gauge and temp sensor?

Rob

[mrg]

I got the parts from autopartsway.ca, and the gauge came with the sensor.