Ok, I know everyone hates transmission questions *bdh* but I'm going to ask before i pull it out as i appreciate any input so i can test instead of saying nope didn't try it.
So the trans is a rebuild by me first off with a lot of information gained from here. It had about 250 miles on it before issues began. The following are the pressure readings, in any position the front servo is at 0 psi though it will drive around the block in any position (that's as far as i'll take it).
In reverse rear servo idle ~200 psi
In drive accumulator (90-130psi) Front servo (0 psi)
In manual low rear servo (90-130psi) accumulator (90-130psi)
In manual second accumulator (90-130psi) Front servo (0psi)
I pulled the servo which is a DTT unit and all sealing rings looked good, reinstalled with liberal application of tranny assembly lube and got the same results.
I had noticed the lack of power being put to the ground and pulled the pan originally to raise the pressure. The pan had a bit of clutch material as well as small gold and silver flakes. I tried to brake stand the truck after this and it acts like it is under load but also acts like its blowing through the trans as the rpm's increase
So i need to know what pertinent information i would need before pulling the trans so i don't wonder later. How would the trans shift and run fine (not under full power) with 0 front servo pressure on the band? I'm thinking it sounds like a valve body issue but would like something to confirm this as it's eaten through this trans. Any input is appreciated.
So the trans is a rebuild by me first off with a lot of information gained from here. It had about 250 miles on it before issues began. The following are the pressure readings, in any position the front servo is at 0 psi though it will drive around the block in any position (that's as far as i'll take it).
In reverse rear servo idle ~200 psi
In drive accumulator (90-130psi) Front servo (0 psi)
In manual low rear servo (90-130psi) accumulator (90-130psi)
In manual second accumulator (90-130psi) Front servo (0psi)
I pulled the servo which is a DTT unit and all sealing rings looked good, reinstalled with liberal application of tranny assembly lube and got the same results.
I had noticed the lack of power being put to the ground and pulled the pan originally to raise the pressure. The pan had a bit of clutch material as well as small gold and silver flakes. I tried to brake stand the truck after this and it acts like it is under load but also acts like its blowing through the trans as the rpm's increase
So i need to know what pertinent information i would need before pulling the trans so i don't wonder later. How would the trans shift and run fine (not under full power) with 0 front servo pressure on the band? I'm thinking it sounds like a valve body issue but would like something to confirm this as it's eaten through this trans. Any input is appreciated.
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