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post #1 of 17 (permalink) Old 02-18-2019, 04:30 PM Thread Starter
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For those of you that would like to know the running temperature of your transmission, the 'Auto Meter' Trans temp gauge is a great addition to the rest of your vital gauge cluster.

I just installed mine this past weekend. My install of this gauge, is just prior to doing the 'SMOD' on my 2018 PRO4X.
I will be monitoring my temps in every driving & weather condition for the next few weeks. So far, under very normal driving conditions, the trans will run about 120 degrees. If I drive it more aggressively, (well, very aggressive) it will climb up to 140ish. So, the trans seems to run pretty cool.

Let's see how much of a change it makes when I do the 'SMOD' and I start to use only the external cooler that's mounted on the core support.

I'm already looking for a different style mount. The one I used is from 'Auto Meter' and it's held in place with Gorilla double sticky tape.

Parts:

1. Auto Meter Phantom II Trans Temp Gauge P/N: 7549 $92.95

2. Auto Meter short style sending unit P/N: 2259 $16.95

3. Auto Meter Metric Adapter P/N: 2265 $14.95

Wiring: 18 gauge.

Blue: to dash lights for gauge LED
Red: to fuse panel for 12v key on/off
Black: to chassis ground
Green: to sending unit on trans


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my 74 Datsun

What a huge change in the DATSUN/NISSAN
line of trucks, since back in the early 1970's!

My NISSAN list:

10.) ??
9.) 2018 Frontier PRO-4X my current ride
8.) 2015 Versa SV her current ride
7.) 2006 Frontier SE - sold
6.) 2006 Altima SL - sold
5.) 2004 Xterra SE - sold
4.) 2003 Frontier SE - sold
3.) 2003 Altima SL - sold
2.) 2001 Altima SE - sold
1.) 1974 Datsun Pickup bought new in 1974 - sold

Last edited by KQ6ZZ; 02-19-2019 at 10:40 PM.
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post #2 of 17 (permalink) Old 02-18-2019, 04:42 PM
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The SMOD problem was solved years ago by Nissan. Why would you modify a new truck to prevent a problem that doesn't exist anymore?

That said I like the idea of a trans temp gauge.

Drive Right - Pass Left
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post #3 of 17 (permalink) Old 02-18-2019, 04:45 PM Thread Starter
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Quote:
Originally Posted by RedDR View Post
The SMOD problem was solved years ago by Nissan. Why would you modify a new truck to prevent a problem that doesn't exist anymore?

That said I like the idea of a trans temp gauge.
Yes, I know that they SAY, it's resolved, but after having it happen to my 2006, I'm not taking any chances.
Had to have my radiator & trans replaced. Lucky for ME, I was at 56k, so they covered it.

my 74 Datsun

What a huge change in the DATSUN/NISSAN
line of trucks, since back in the early 1970's!

My NISSAN list:

10.) ??
9.) 2018 Frontier PRO-4X my current ride
8.) 2015 Versa SV her current ride
7.) 2006 Frontier SE - sold
6.) 2006 Altima SL - sold
5.) 2004 Xterra SE - sold
4.) 2003 Frontier SE - sold
3.) 2003 Altima SL - sold
2.) 2001 Altima SE - sold
1.) 1974 Datsun Pickup bought new in 1974 - sold
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post #4 of 17 (permalink) Old 02-19-2019, 06:31 PM
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I just read a very interesting article about the five speed automatic in the frontier. It basically states that the bypass mod will alter line pressure of the torque converter causing issues. Adding a cooler in addition to the one already there also causes issues. Article is located on motor age training site.https://www.searchautoparts.com/moto...=0,2&cid=95914
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post #5 of 17 (permalink) Old 02-19-2019, 07:23 PM
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Quote:
Originally Posted by 2018svcc4x4 View Post
I just read a very interesting article about the five speed automatic in the frontier. It basically states that the bypass mod will alter line pressure of the torque converter causing issues. Adding a cooler in addition to the one already there also causes issues. Article is located on motor age training site.https://www.searchautoparts.com/moto...=0,2&cid=95914
my take away was that aftermarket radiators have the potential to restrict flow, creating too much line pressure on the tq converter.

and that nothing other than oem replacement parts will work.
i wonder if he has stock in nissan parts.
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post #6 of 17 (permalink) Old 02-19-2019, 08:24 PM
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I have an 2018 and I will not be bypassing. If i do, and have problems with the torque converter (or almost any problem with the transmission)down the road Nissan will certainly deny any warranty claim.
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post #7 of 17 (permalink) Old 02-19-2019, 10:02 PM
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Quote:
Originally Posted by 2018svcc4x4 View Post
I have an 2018 and I will not be bypassing. If i do, and have problems with the torque converter (or almost any problem with the transmission)down the road Nissan will certainly deny any warranty claim.
They may deny it if you dont! Their funny that way..
I get what you’re saying, but I would be checking everything real good before the warranty runs out.. and then possibly do it.
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post #8 of 17 (permalink) Old 02-19-2019, 10:20 PM
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Quote:
Originally Posted by KQ6ZZ View Post
For those of you that would like to know the running temperature of your transmission, the 'Auto Meter' Trans temp gauge is a great addition to the rest of your vital gauge cluster.

I just installed mine this past weekend. My install of this gauge, is just prior to doing the 'SMOD' on my 2018 PRO4X.
I will be monitoring my temps in every driving & weather condition for the next few weeks. So far, under very normal driving conditions, the trans will run about 120 degrees. If I drive it more aggressively, (well, very aggressive) it will climb up to 140ish. So, the trans seems to run pretty cool.

Let's see how much of a change it makes when I do the 'SMOD' and I start to use only the external cooler that's mounted on the core support.

I'm already looking for a different style mount. The one I used is from 'Auto Meter' and it's held in place with Gorilla double sticky tape.

Parts:

1. Auto Meter Phantom II Trans Temp Gauge P/N: 7549

2. Auto Meter short style sending unit P/N: 2259

3. Auto Meter Metric Adapter P/N: 2265

Wiring: 18 gauge.

Blue: to dash lights for gauge LED
Red: to fuse panel for 12v key on/off
Black: to chassis ground
Green: to sending unit on trans


[IMG class=inlineimg]/forums/images/ClubFrontier/smilies/tango_face_angel.png[/IMG]
I know exactly what you mean, I don’t think I would take the chance either, after what they pulled in the first round of radiators and offered little to no help after 80,000 miles.. why trust them! Thank you for doing this, it will help us that did do the bypass see some actual temps before and after and see how much difference there is with/without.

Do you mind me asking about how much a guage like that cost and did it come with the bundle of wire that is attached to it or did you have to buy the wire separate? I see the spools of wire in background but wasn’t sure if you needed it for extra length.
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post #9 of 17 (permalink) Old 02-19-2019, 10:21 PM Thread Starter
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I asked the guy that's in charge of the service dept at my local dealer. You know, the big dog. Told him what I was going to do on my 2018 in regards to the SMOD issue. He was totally aware of the SMOD and told me that he knows about this great site! I told him that because my system failed in my 2006, I just don't feel comfortable NOT doing it in this new truck. He agreed, said he didn't blame me. I asked him if I do the mod, will it void my warranty, and told me no. I told him too, that I was installing the trans temp gauge.

my 74 Datsun

What a huge change in the DATSUN/NISSAN
line of trucks, since back in the early 1970's!

My NISSAN list:

10.) ??
9.) 2018 Frontier PRO-4X my current ride
8.) 2015 Versa SV her current ride
7.) 2006 Frontier SE - sold
6.) 2006 Altima SL - sold
5.) 2004 Xterra SE - sold
4.) 2003 Frontier SE - sold
3.) 2003 Altima SL - sold
2.) 2001 Altima SE - sold
1.) 1974 Datsun Pickup bought new in 1974 - sold
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post #10 of 17 (permalink) Old 02-19-2019, 10:48 PM Thread Starter
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Quote:
Originally Posted by MiniDuti View Post
Do you mind me asking about how much a gauge like that cost and did it come with the bundle of wire that is attached to it or did you have to buy the wire separate? I see the spools of wire in background but wasn’t sure if you needed it for extra length.
I edited my post to include the prices from the Auto Meter website.
The gauge did not come with the wiring. You need to buy 16-18 gauge wire, spade terminal connectors, shrink tubing. None of my wires are longer than 3 feet.

my 74 Datsun

What a huge change in the DATSUN/NISSAN
line of trucks, since back in the early 1970's!

My NISSAN list:

10.) ??
9.) 2018 Frontier PRO-4X my current ride
8.) 2015 Versa SV her current ride
7.) 2006 Frontier SE - sold
6.) 2006 Altima SL - sold
5.) 2004 Xterra SE - sold
4.) 2003 Frontier SE - sold
3.) 2003 Altima SL - sold
2.) 2001 Altima SE - sold
1.) 1974 Datsun Pickup bought new in 1974 - sold
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