Forum Discussion

maillemaker's avatar
maillemaker
Explorer
Jun 16, 2018

Can I install this temp sensor in Ford E40D test port?

Hi all, I would like to know if it would be safe to install this 1/8" NPT temperature sensor probe in the test port of my 1990 E40D transmission with it's longer "nose", or if I need to get a port ...
Pirate1's avatar
Pirate1
Explorer
Jan 31, 2019
topic

When I had the E4OD I used to argue against using the test port for a gauge. Before selling, I had two input to my gauge, one from the hot line and one from the test port. Comparing the two showed the test port to be a bit more accurate IIRC. Here is a post about it and a picture I took when I had my E4OD rebuilt.

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