8HP75 Transmission Fluid Change

[popcenator]

As stated above try doing a full service on the transmission with a new pan and filter,and go from there.
When you pull the battery posts,are you taking it out for a drive right after,and driving it like you stole it.
The 8 speed learns your driving habits,and i'm wondering if that just might be some of your issues, maybe you're babying it to much after the battery disconnect.
Do a battery disconnect when it's warm,then go drive it like it's a rental truck,lol

That's a fair point lol I usually take it easier but maybe I'm doing it all wrong and need to show the truck a good time after the battery pull.

 

[RamInfo]

So, if leveling the truck altered the fluid level in the 8HP70 enough to impact transmission operation, like rough shifting, then my RAM should have come with a dash placard indicating I should never haul any weight that would compress the rear springs enough to…level the truck…


Best,
RI

 

[Sunnibobs47]

It's such a dynamic equation on when to change the fluid. My 1500 SLT 4x2 was used for construction project walk downs/inspections/over sight, therefore never towed or hauled much worth stressing the transmission...high miles though for sure running about the midwest states (OH to KS).

I noticed trans temp running 200+degrees F at highway speeds in both summer and winter conditions. Changed pan/filter/fluid at 112K mileage and same conditions dropped the running temp down to 178-184 degrees F. Likewise, oil PSI reading shifted from 52psi @ 75mph down to 51psi @ 75mph...less friction all around.

 

[joesstripclub]

That's a fair point lol I usually take it easier but maybe I'm doing it all wrong and need to show the truck a good time after the battery pull.

My truck shifts a lot more aggressively for a few days after I tow something. It will continue to learn as you drive it in my experience.