Is there a port that I can use on the 48RE to screw my tranny temp gauge sender in? I've heard you can and I've heard you can and that you need a special line with the fitting or an aftermarket pan with the bung built into it. Any truth to that or am I in luck with a stock setup?

Thanks

 

See if Lary can get the line that Diesel Manor has. It replaces your pressure line. This is the hottest reading and is more indicative of what's going on in the convertor. I got tired of a reading a gauge that flucuated very little so I changed mine to this setup in a previous truck. Much more temp change.

Chris

 

First off, the avatar rocks, RIP DIME!!!!

Second, as stated, get the hot line from dieselmanor.com and put your gauge probe there, you want to know how hot its getting.

 

You can get the transmission like mentioned above, I have that type on my truck. If I was to do it again I would have bought this one from Geno's. I don't believe it would reasond as fast but a few degrees wouldn't make a lot of difference in my opinion. http://www.genosgarage.com/prodinfo....CUTEMP_ADAPTER Good luck on whichever you decide on.

 

Whatever you do, DO NOT place the sending unit in one of the test ports at the rear of the tranny. First choice is the pressure line as described above... some prefer the pan. Mine is using the line from Diesel Manor.

 

If you do want to use the test port, you can go to Quadzilla's web site and download the manual for their Commander guages and it will show you were it is located. You can also install a port in the stock pan using a B&M drain plug kit.

 

I am using the line from diesel manor as well

 

Lots of opinions out there on the test port. At the risk of , I'll just say that my probe is in the upper test port hole on the passenger side and it appears to work OK. It may be a slower to respond than a sensor in the hot line, but once you adjust your expectations it performs its intended function: alert the driver to rising transmission fluid temps. The data might not be "real-time" but it's pretty darn responsive. Basically it serves to confirm your "seat of the pants" feel for how hard the tranny is working. Kind of like an idiot light I guess.

The test port has two advantages:

1. It's free- nothing more to buy.
2. It's real easy to "put back to stock" in the case of a warranty situation.

I can just see my local dealer blaming a transmission failure on a non-OEM hot line or hole in my pan. Your results may vary.

(Flame suit on)

 

No flaming here, I completely agree. I feel the hot line deal is a waste of money. Put it in the test port for free, or spend less than $10 on a plug for the pan and understand what the temps are telling you and you'll be fine.

 

Ok, no flaming and I totally disagree with both erroneous assumptions.

A probe in the pan or test port will NEVER read the max fluid temp that has been reached. The max heat and temp will happen in the TC then BE ROUTED DIRECTLY TO THE COOLER. Any temps taken from the pan or test port will be after the fluid has been cooled. Useless!

It simply does not matter if the temp reacts slower it will never be accurate and the temps will never tell you you cooked your fluid. It is impossible to understand what your gauge is NOT telling you.

The test port is worse because it NEVER has flow thru it. It is a dead end port and all you read is heat soak in the trans. Also, that port is on the rear servo so unless you use an extension every time the servo returns it is banging on the end of the probe. If an extension is used it just moves the probe farther from the heat source and reduces the accuracy even more.

The pan is better because the fluid is cycled thru it but still AFTER the cooler. All the pan is telling you is heat soak in the trans also. It is entirely possible to never see pan or test port temps that indicate a problem and yet cook the fluid to the point it is breaking down and eating the clutches up. It even worse with a tighter converter as you can drive the temps up a lot quicker in fluid coupling.

Why take the chance on a $40k truck to save a few bucks on a critical monitor? Buy the line for ease or this for $10 if you really can't dig up the change.

http://www.genosgarage.com/prodinfo....ber=VULCAN_VTA

 

^^^ Agree 100% !!! ^^^

Buy a 1/2" compression T with a 1/4" NPT port on the T side. Bought one and put in my truck over 20K miles ago. Been fine ever since. I can TELL when I'm slipping the converter.....temp goes up real quick!

 

No matter how many times you tell these guys, they still argue about the test ports, it does not register! No point in arguing with them. Go ahead and put it in the test port. I did when I first got my trans gauge. Soon changed to the output line.

 

A freind and I were on our way to Las Vegas a couple of years ago and we were both pulling the same amount of weight. I have my sensor in the test port and he had his hooked up to the hot line. We both had CB radios and kept in constant touch with each other. Both of our transmission temperatures were with in 10 degress of each other the whole trip.

 

IIRC a probe in the test port gets in touch with very little or no trans fluid so I don't see/understand how it could report a fluid temp with in 10 degrees of fluid temp in the line out.

 

not trying to hijack this post, but.... i have the edge with attiude and i use it to monitor trans temp, which i am guessin it uses the stock computer trans sensor... how accurite is that little guy?