O'Rattlecan
Redneck Prognosticator
Hey guys,
If you read my posts (God bless your patience) then you might already know I've been fighting a harsh shifting transmission for about 5 years. The transmission even was freshly rebuilt and it's still out of control. I've thrown speed sensors (VSS), throttle position sensors, fluid changes, solenoid packs... No matter what I do, it persists.
There is a component that I didn't know existed. It's called the PSOM, which is short for Programmable Speedometer & Odometer Module. I knew the transmission used the speed sensor to determine the strength of shifts. However, I didn't know it routed through this PSOM module.
I haven't ever touched this PSOM module. Most guys with a bad PSOM complain of a speedometer not working, harsh shifts, and sometimes even the odometer is blank. The only symptom I have is the harsh shifts.
Anyway.... Has anyone dealt with this issue? Vince, have you repaired these boards or replaced them completely? I can't find them for sale, so I'm thinking I will have to have it rebuilt or get something from a salvage yard.
Ryan
If you read my posts (God bless your patience) then you might already know I've been fighting a harsh shifting transmission for about 5 years. The transmission even was freshly rebuilt and it's still out of control. I've thrown speed sensors (VSS), throttle position sensors, fluid changes, solenoid packs... No matter what I do, it persists.
There is a component that I didn't know existed. It's called the PSOM, which is short for Programmable Speedometer & Odometer Module. I knew the transmission used the speed sensor to determine the strength of shifts. However, I didn't know it routed through this PSOM module.
I haven't ever touched this PSOM module. Most guys with a bad PSOM complain of a speedometer not working, harsh shifts, and sometimes even the odometer is blank. The only symptom I have is the harsh shifts.
Anyway.... Has anyone dealt with this issue? Vince, have you repaired these boards or replaced them completely? I can't find them for sale, so I'm thinking I will have to have it rebuilt or get something from a salvage yard.
Ryan