Lancegreen

I'm running into issue where after slowing down or coming to stop, my 06 R350 would stay in 1st gear and rev up but not switch to 2nd. Shut off, turn back on, fine for a few days and then the same would happen. All of a sudden now, when coming to slow down or stop it will not accelerate at all and has to be shut off, turned back on, but will only drive normal until slowing down or stopping again. I’m thinking it could be conductor plate, sensors on there, or solenoid. Of course I’m gonna change fluid and filter but since it has to be done from bottom of car and I’m not positive that’s all it will require, I’m thinking I may want to go ahead and try replacing the solenoids while I’m in it. Of course there’s a chance that might not be it and I have to redrop everything and get the conductor plate to send in to a place that rebuilds it (if indeed it’s the tcm or sensors on the plate) so it’s still programmed to your car still.

I saw someone mentioned fixing the 13 pin connector but don’t know what that’s called, at rock auto I can get the solenoids and everything to change the fluid and filter and pan gasket, but didn’t see that connector under tranny stuff.

is there anything else that could be causing the car to act this way? Any help or input is greatly appreciated. It’s a 722.9 Trans, no check engine light on, no codes being thrown on obd scanner.

scoutman

I had the same problem with my 07 R350 years ago. Problem surfaced when I was driving it home for the first time after buying it from a private seller Took it to the dealer and they replaced the conductor plate for $1,200 or so. Car drove great until the motor developed timing chain problems 5 or so years later at 135,000 miles Replaced with a 2011 R350 which has run great and just rolled over 100,000

Lancegreen

Scoutman,

the dealer was able to verify that it was indeed the conductor plate? Or was it sensors or solenoids on the plate?

thanks

scoutman

I just remember the invoice stated new conductor plate installed and programmed. They never mentioned if they replaced any solenoids/sensors. My car had the exact same problem, trans would not upshift out of first at times and problem became more frequent over time.