new member here
I have checked other threads but couldn't find an answer to my problem

I have a 2004 1500 4X4 with a 5-45RFE transmission
the trans temp light comes on intermittently, some time i can drive all day no problems, some times the light comes on with in a mile from the time i start up
sometimes only comes on for a few seconds sometimes it comes on for a few minutes, the transmission temp runs about 155 degrees, I have changed the solenoid pack, the pressure switch and the filters and still the same issue

anyone have any suggestions or ideas
thanks

 

Try new temp sensor.

 

Sounds like a bad sensor or connection.

 

Where are you reading 155* from

 

Have you checked the fluid level? If you've overfilled or underfilled the transmission you can see this problem too...

Does your truck have a transmission cooler? If so then you might have a clogged trans cooler.

Could be either clogged internally... or externally if you have a bunch of crap (bugs, road debris, tar, grime, oil, etc.) so you might need to get a cleaning agent and a hose and go to town on it....

I also want to know where you're reading 155* From....?

 

turned out to be corroded wires higher up in the harness to the solenoid pack

 

Glad you found the problem.


I wanted to add for others with a similar problem that old fluid cannot dissapate heat as good as new fresh fluid can, so overheating can be from old fluid as well.