Anyone used Amsoil ATF fluid?

[carguy75]

No it didn't.

I replaced rear diff, all Transmission solenoids; flushed the ATF 3 or 4 times, replaced wiring harness b/w valve body and TCM; reset adaptive values and did a gear adaptation or re-learn.

Issue persists; and I still have hard shift from 4th to 5th gear while ATF is not so hot and it is still noticeable when ATF warms up. Then added Lubegard Instant Shudder Fixx but did not help.

What do you guys recommend? is it a Torque Converter issue? Are the clutch bands wearing out? Should I consider Lucas Transmission Fix to stop slip or improve the grip between the clutches? or am i looking at replacing the full transmission assembly?




Thanks,
Husam

I recommend a transmission shop look at it if your ride is out of warranty, because it could be an internal issue like a bad clutch plate or band causing the shifting issue.

How many miles on your transmission?

 

[Husam]

I recommend a transmission shop look at it if your ride is out of warranty, because it could be an internal issue like a bad clutch plate or band causing the shifting issue.

How many miles on your transmission?

It's 106k miles on the tranny

 

[Husam]

I recommend a transmission shop look at it if your ride is out of warranty, because it could be an internal issue like a bad clutch plate or band causing the shifting issue.

How many miles on your transmission?

I had taken it to the dealership, they checked it and although my TCM was having the latest software update, I asked them to reflash the TCM with the software and it worked! No more hard shifts 90% of the time!