Transmission overheating

[ZachBoyer]

My e4od on my mud truck is overheating. I took it mudding then brought it home. I drove it down the highway after I cleaned it off and the transmission is overheating. The Radiators are clean, the undercarriage is clean and my transmission fluid is clean. what are the ideas there. I got the new filter to change it. I used to drive it down the same path and my transmission would only get up to 140 now it gets up to 190... Any ideas???

I have no lights blinking or codes thrown for it!.

Got a shift kit in it. and its not slipping??

[ZachBoyer]

[Austinj427]

Are you sure you didnt damage anything from goin muddin?

[oldtimer550]

Couple things..
1, a tranny tech told me that the ATF cycles through the radiator for cooling as well as the oil cooler itself. He said that if the tube inside the radiator collapses (as they do with age) it restricts flow and the tranny heats up...check to see how free the fluid flows through the rad...and get a laser temp gauge, check the line temps before and after the rad. Tech said to look for 40* cooling diff between in and out, as taken 6-8" from the rad.
2, on my 2000, there's a valve that closes in cold weather to heat the atf up faster by shunting the fluid back into the tranny rather than letting it go to the coolers. If it malfunctions, it causes the tranny to overheat in no time flat. It's cheap to replace, like 60 bucks. I'd change it if your truck has it, cheap insurance.

[ZachBoyer]

Thank you for respondin. On my truck I have a seperate cooler for my tranny so i dont believe that it goes through my radiator. After driving when my tranny is 190 I grab my top line and its hot but I can hang on to it for a bit. Then my lower one is alittle bit cooler but still hot. I figured if my tranny was 190 i wouldnt be able to hang onto the lines. As for damage. No im not sure if I damage anything mudding... There is no dents, dings, or dirty fluid. As for this Valve where is it located cause I am thinking that its not cooling so thatd be a good start..

O and I have a built suncoast e4od, deep pan, and big tranny cooler


Thanks

[bigcountrysg]

190 is not to bad, you may need to hose out the radiator,, and trans cooler again. You may have some restriction of air flow. Remember to get behind the trans cooler and the radiator.

[ZachBoyer]

yeah Its all clean like when I bought the truck...