jrtor

P2767 - "input/tubine speed sensor 'B' circuit no signal"

Hi Ive been experiencing the vehicle not speeding up when you step on the gas. the rpm goes to 3000 but not moving. Seems like its not changing gear. There is no engine light on or error message on the screen..

Anybody else experience this and any sugestion on fixing it .. thanks

error code P2767 is the right one.

alx

I think it is your tcu that is gone (electrics plate in the tranny). A part will be replaced and a few hours of labor- (part is in tranny and needs to be coded to vehicle.

jrtor

Just about to call MB service to take the car in ...decided to check it again with the OBD scaner just to make sure that the error code is still there...got no error code . Now I dont know if I should take it in or not...Thanks for the reply.

alx

the code is still there along with a snapshot of the parameters that were out of whack and triggered it.

the car keeps a history of all codes thrown. said history can be erased with das, but a simple code scanner /reset tool is not capable of doing it

jrtor

It happened again..took the car in. Waiting for the sevice tech call..Initial cost $280 2 hours for diagnosing the problem. He said it could be as simple as a computer update to $1200 computer relay replacemt to 6800 transmition replacement...

jrtor

Just got this from the service rep


Ok Faults stored and current for gear requested implausible, dropped pan and fluid is good and filter and magnets are clean of any metal or debris. $278.00 DONE



Needs transmission shift conductor plate, need to drop valve body and replace and reprogram shift adoptions after with new filter and filter $1346.00-15%(-201.92) =$1144.08



3-4 days special order to get that part needed installed and your truck back on the road safely. Please let me know how to proceed, best regards, Dustin