autometer tranny temp gauge install help...

RedlineRex

New member
i'm not sure if this is the right forum, but here goes. i need to pick up the manifold fitting to connect the sender for my autometer mech temp gauge. do we need the 3/8" or 5/16" version for our tranny lines? thanks, paul
 

ghettosled

SYTY SUPERSTORE
typically the lower line shows the highest temps, but such a fitting for "t" ing into it does not exist. You need to piece together an 1/8" npt female "t" with flare adaptors, and reflare your stock trans line. Its a tight squeeze to make it all work, but if done properly it can look and perform pretty well.

Its usually easier to swap in a nice deep aluminum pan with a 1/8" npt bung. May not be the hottest temp, but you will get an idea of what your operating temps are, and you will see a temp increase when you brake torque or go up steep hills, etc. When you see this, you will know to take it easy for a little.
 

ghettosled

SYTY SUPERSTORE
i just realized you have a mechanical gauge.. I suppose that will work, but those fittings do not screw into the radiator.. They look like 1/8" npt to 5/16" hard line, which basically will be used to splice into the hardline. I would just be careful to make sure you mount the block to something and avoid any vibrations which may overtime lead to a cracked trans line. Personally i would have chose an electric gauge.
 

RedlineRex

New member
good point, mike. i didnt realize that i accidentally ordered the mech gauge until i opened the package. maybe it is best to go with a weld-in bung in the pan. although the temps may not be as high as the tranny line, i'm sure it will work fine. thanks for the help guys...
 

93ty475

Donating Member
my mechanical tranny temp gauge required a 1/2" npt tap in the tranny pan...quite a large hole imo....my tranny pan is a tci deep pan...gauge is an autometer ultralight 2 1/16" with a plastic covered copper line that needs to be carefully uncoiled and run to the tranny pan...made installation quite a bit more challenging than an electronic gauge...the deep pan has 4 spikes that suspend the filter about 1 1/2 inches from the bottom of the pan...i just tapped in the area within the height of the spikes to not interfere with anything...probably should have bought an electronic gauge, but i didn't specify when i ordered so i'll live with it....tranny temps have hovered around + or - 180 deg. F....but when i get into boost for more than 5 or so seconds (10 to 12 psi), my temps go up to around 200 f...i have yet to boost launch the truck, but i bet they would climb even higher....i also noticed that the mechanical setup takes more than a few minutes to get up to temp from cool...i say this having never experienced an electronic tranny temp gauge though...
 

SY2932

Administrator
93ty475 said:
the deep pan has 4 spikes that suspend the filter about 1 1/2 inches from the bottom of the pan...

IMG_0666.sized.jpg

"Cast TCI transmission pan, holds two additional quarts. Filter is supported by the four pins cast in the bottom of the pan. Front of pan *may* have to be trimmed to clear TC inspection plate (mine did). "

I have an electronic transmission temperature gauge in my truck and I have never seen 200 degrees and I'm running a 3K stall torque converter. The temperature rises pretty quick doing launches and even just getting on it. However, I have a 24,000 GWV B&M cooler to help keep things from melting down.
 
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