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Tranny Temp Gauge

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Old 01-15-2014, 05:50 PM
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Originally Posted by dmill89
I don't think the AW4 has a temp sensor in the trans (or the TCM doesn't communicate it to the PCM), I've seen several posts of people saying that their OBDII scan tools (ones capable of reading trans temp) could not read the trans temp.
Well bummer......seeing it display on our other vehicles is kinda cool. Thanks again.

Got any pics of how u installed your tranny temp sending unit?
Old 01-15-2014, 06:11 PM
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Originally Posted by djb383
Well bummer......seeing it display on our other vehicles is kinda cool. Thanks again.

Got any pics of how u installed your tranny temp sending unit?


I don't have any pics (I'd take some but its dark out). It is screwed into a 3/8" "T" fitting (with a 3/8" to 1/8" adaptor for the sensor) screwed into the inlet of my aux-filter adaptor (Since the AW4's "filter" is just a screen, I run one of
these these
, with a WIX 51452 on it for my trans), I have the aluminum filter adaptor bolted to the front cross-member which makes an excellent ground for the sensor (I cleaned the bolt holes and ran a ground wire from one of the bolts to the fender ground just to be sure) without having to deal with any compression fittings on the steel lines.

Last edited by dmill89; 01-15-2014 at 06:26 PM.
Old 01-15-2014, 06:16 PM
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Originally Posted by djb383
To the OP........I read where fluid temp "peaked" at 175F.....is that with/without an auxiliary tranny cooler?
Without an auxilary cooler

Originally Posted by PocketsEmpty
Holy switches batman. What are all those for? lol. Looks good!
Nothing yet lol. The top left switch is going to be rigged to my rock lights (install tonight). As for the rest who knows... I'm going to be getting some light bars in a few months so I will prolly use one or two switches for that but I figrued If I'm going to install any switches might as well do the 6 one. Looks good too, but this way the switches are already prewired directly to the fuse/relays/battery. All I have to do is connect my accessory item to the female port in the engine bay and ground it. Inline fuse and everything else is already wired up
Old 01-15-2014, 06:45 PM
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Originally Posted by dmill89
It is screwed into a 3/8" "T" fitting (with a 3/8" to 1/8" adaptor for the sensor) screwed into the inlet of my aux-filter adaptor (Since the AW4's "filter" is just a screen, I run one of these , with a WIX 51452 on it for my trans),

Sounds like a sweet setup!


What are you using for plumbing? Rubber hose? OR did you get fancy with a flaring tool and some metal tubing?
Old 01-15-2014, 07:17 PM
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Originally Posted by BlueRidgeMark
Sounds like a sweet setup!


What are you using for plumbing? Rubber hose? OR did you get fancy with a flaring tool and some metal tubing?


Just some rubber hose (rated for oil/ATF of course), it works just fine.


It is nice to have a "real" filter for the transmission and to be able to easily change it (I don't know if it is really necessary but it definitely can't hurt).
Old 01-15-2014, 07:51 PM
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Originally Posted by dmill89
I don't have any pics (I'd take some but its dark out). It is screwed into a 3/8" "T" fitting (with a 3/8" to 1/8" adaptor for the sensor) screwed into the inlet of my aux-filter adaptor (Since the AW4's "filter" is just a screen, I run one of these , with a WIX 51452 on it for my trans), I have the aluminum filter adaptor bolted to the front cross-member which makes an excellent ground for the sensor (I cleaned the bolt holes and ran a ground wire from one of the bolts to the fender ground just to be sure) without having to deal with any compression fittings on the steel lines.
Dude, that sounds like one saaahhhweeeeet set-up......u gotta post some pics when convenient. Thanks.

Last edited by djb383; 01-15-2014 at 07:54 PM.
Old 01-15-2014, 08:04 PM
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Originally Posted by djb383
Dude, that sounds like one saaahhhweeeeet set-up......u gotta post some pics when convenient. Thanks.


I'll try to get some pics tomorrow if the weather co-operates.
Old 01-15-2014, 08:07 PM
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Maybe pics of the cooler too?
Old 01-15-2014, 08:12 PM
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Originally Posted by Radi
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.

Cool I was looking for this. Thanks! Mine has heated up over 200 once or twice since I've had the gauge. Don't know why it did it while on the trail but it got effing hot.
Old 01-15-2014, 08:29 PM
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Originally Posted by djb383
Maybe pics of the cooler too?


sure, though it's nothing special, just a standard B&M 70264, mounted in the center behind the grill and plumbed with rubber lines.
Old 01-15-2014, 08:37 PM
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Originally Posted by dmill89
sure, though it's nothing special, just a standard B&M 70264, mounted in the center behind the grill and plumbed with rubber lines.
Sounds just like our set-up.....show us how it's done anyway.
Old 01-15-2014, 09:54 PM
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Originally Posted by dmill89
It is nice to have a "real" filter for the transmission and to be able to easily change it (I don't know if it is really necessary but it definitely can't hurt).

Yeah, I just don't understand why it's not the usual practice.


Nice work, and of course, you'll post pictures soon, or we'll send Guido along to persuade you.
Old 01-16-2014, 04:33 PM
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Here are the pics:


Filter/Sending unit:







Close up of the fittings and temp sending unit (the temp sending unit is the one with a yellow wire coming off of it)




Cooler:
Old 01-16-2014, 06:26 PM
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Excellent! I'll bet having a remote filter aids a bit in tranny fluid cooling as well.

Last edited by djb383; 01-16-2014 at 06:28 PM.
Old 01-16-2014, 09:01 PM
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Curious... this filter setup on an older AW4 (211,xxx miles), would it potentially cause harm? I ask because I have heard that over years, tiny amounts of the clutch plates can particulate into the fluid. Hence why sometimes a full on fluid replacement isn't recommended. Would this filter remove those 'necessary' particles?

Disclaimer- the above is interwebz info. I very well may be wrong so please correct me at will.


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