Still no 5th and 6th gear when hot after new valve body

[JonWilson]

2011 dodge 3500 4x4 120000 miles , checked cvi values all good , replaced valve body with new mopar and seemed to be fixed but when trans temp goes above 130 degrees it will no longer go into 5th or 6th gear, works beautiful until temp comes up, this is driving me nuts, it started happening shortly after the main sump filter split during winter driving, replaced both filters with mopar filters and inside of pan looks good , fluid good , no smells , no codes from tcm , scratching my head here and gonna start pulling hair out,..Does any one know which way to turn next,, Thanks for any info or direction given.

 

[6V92TA]

wow... thats weird... disconnect the trans temp sensor and drive it until it breaks.

 

[zetatre]

Is it stuck in 4th? Does it only engages 1st and 4th? Does it go through all gears from 1st to 4th?

 

[JonWilson]

Is it stuck in 4th? Does it only engages 1st and 4th? Does it go through all gears from 1st to 4th?

works great ,all gears, no codes, trans temp hits 130 then no more 5th or 6th. let sit for 30 minutes everything work great again til temp hit 130 then no more 5th or 6th