Originally Posted by rdefayette
1st things 1st.
Has the trans ever been serviced.
On an '04 with an auto you have a 48re Transmission.
Factory service is recommended evry 30k miles.
Not only filter and fluid (+4 trans fluid ONLY) but adjust the bands.
One of the band adjustments is on the left front side of the case the other requires the pan to be removed.
2nd accumulator solenoid is known to take a dive on the also but 1st do a trans service, not just a filter/fluid change.
Trans service-Yes...I knew when I bought this truck I would keep it until it turned back into dust. So I have done several...
I have not adjusted the bands. If you know the procedure I would appreciate it. Or know where I could find it.
I have rebuilt many Allison 545 trans, but not any trans that had bands.
I think I'll get the "accumulator" while I have the pan down doing the bands I'll replace that.
Just need some info on doing the bands.