Auto trans temp
Auto trans temp
Senior User
Joined: Jan 2004
Posts: 427
Likes: 1
From: clyde,ny
not sure about normal temps,but mine under normal driving(no trailer or load in box) runs about 135 degrees.checked with a laser temp. finder.my gauge starts at 140 degrees,only had it that HOT once pulling a trailer up some pretty good hills on route 5&20.
Senior User
Joined: Jan 2003
Posts: 305
Likes: 0
From: Penn Valley
The "to cooler" line is fresh out of the torque convertor so it is artificially high. The spec for maximum is somewhere around 300°. Measuring the pan oil is better. Pay attention above 200°, don't exceed 250°. Though most of the time a properly running E4OD will not exceed 180° so long as you are moving at a good clip, and not pulling too hard. It is important to install the gauge before you have problems so you have a base line and know what is normal.
Birken
Birken
Senior User
Joined: Jan 2003
Posts: 305
Likes: 0
From: Penn Valley
You cannot test a cooler that way! Beware! Because if the cooler is highly restrictive it will show a great temperature drop. And the circuit that the cooler return goes to is the lube circuit.
The proof of a good cooler is in how cool it keeps the whole transmission. If the transmission is already no hotter than 140 then Stop Right There. Nothing more is necessary.
Birken
The proof of a good cooler is in how cool it keeps the whole transmission. If the transmission is already no hotter than 140 then Stop Right There. Nothing more is necessary.
Birken
