Valve Body Rebuild or Whole Trans Rebuild
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Amateur
Joined: Nov 2023
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Check valve is in the cooler line, so, really doesn't have much affect on pressure. If it gets clogged, it prevents fluid flowing to the cooler, and the trans overheats. The RE transmissions monitor trans temp, and if it gets too hot, overdrive gets disabled first, if it continues getting hotter, the trans temp light in the dash will come on. 95 and older trucks, trans temp sensor was external, and an option.... so, that particular bit of code wasn't always there.
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From: Clayton MI
The ports won't always have pressure, so, your gauge may not always read the correct temp. There are a variety of ways to handle that, most common, is have the temp probe on the outgoing cooler line. That gives you the best idea of what trans temp really is. Of course, it isn't 100% accurate, tends to read a few degrees low.... Just keep that in mind when you gauge starts approaching 200 degrees. 
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Amateur
Joined: Nov 2023
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If you have gauge/s you can test it yourself, I wonder what the line pressure is?
https://atracom.blob.core.windows.ne...0/2000_154.pdf
https://atracom.blob.core.windows.ne...0/2000_154.pdf
Thread Starter
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Amateur
Joined: Nov 2023
Posts: 32
Likes: 1
The ports won't always have pressure, so, your gauge may not always read the correct temp. There are a variety of ways to handle that, most common, is have the temp probe on the outgoing cooler line. That gives you the best idea of what trans temp really is. Of course, it isn't 100% accurate, tends to read a few degrees low.... Just keep that in mind when you gauge starts approaching 200 degrees.
Thread Starter
|
Amateur
Joined: Nov 2023
Posts: 32
Likes: 1
If you have gauge/s you can test it yourself, I wonder what the line pressure is?
https://atracom.blob.core.windows.ne...0/2000_154.pdf
https://atracom.blob.core.windows.ne...0/2000_154.pdf
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Joined: Sep 2012
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From: Central VA
Thread Starter
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Amateur
Joined: Nov 2023
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You can change the pan to one with a drain plug pretty cheap - (https://www.amazon.com/Premium-Trans.../dp/B07MXKPY67)
In addition, you can drill your own port in the side of the pan to mount the temperature sender for a trans temp gauge. Just have to make sure the sensor won't hit the valve body..
In addition, you can drill your own port in the side of the pan to mount the temperature sender for a trans temp gauge. Just have to make sure the sensor won't hit the valve body..
Grand Champion
Joined: Feb 2015
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Weld a (pipe thread) bung on the pan, With proper sealant it will not leak.
According to the print(flow chart) in the service manual the cooler line is "lubrication" 5-57 psi. There is no "port" for that but installing a "T" in the cooler line you would be able to test it.
question on this. How would I go about testing cooler line pressure where the check valve is, or is it possible to check pressure there?
