Engine/Transmission (1994 - 1998) transmission Temp Problem ?

[TFlower]

Had to replace my transmission lines to the cooler last week. Doing so, I relocated the Jannetty manifold to an easier location to get at. After reinstalling everything, the gauge will not read more then about 120° at the max. , even towing. I installed a new probe, same thing. I cut and replaced the end of the wire, same thing. I am starting to think that either the gauge is messed up or the wire lead is bad.

Anyone have any ideas??

 

[JPittinger]

It could be that the sender needs a better ground. Sometimes teflon tape can isolate the body of the sender; you could try aligator clips jumped to ground to see if you get a better reading.

-JJ

 

[len70]

my trannys see the same temps in both my trucks . even when i plow i don't see over 150 degrees. go under the truck and feel the transmission pan or pull the dip stick. i know your gauge is reading correct.

 

[Howard Durand]

Where the sender is located will make a big difference in what you see. If it is in the line returning from the heat exchanger at the front of the truck, it will be reading the lowest temperature. If it is in the line coming out of the TC at the front of the transmission it will be reading the hottest. Mine is in the pan and usually runs around 150 degrees.