Hi there, new to LOST.. i have an important question. This might have been posted somewhere on this forum but i could not find my specific question. I just bought an 06 CRD with 55k miles and the previous owner seemed to keep up with recalls pretty well. He says when he had the infamous "shudder" he took it to the dealer and had the TC replaced along with the F37 reflash ( i can tell based on the shift points).
HOWEVER, i noticed while driving that i still have the shudder- just as described- in overdrive TC lock up with some good throttle. I would like to know what eventually happens after too long with this shudder and what does it actually do? Is it fatal to the life of the TC or trans? Can it be fixed with a TCM reflash by GDE? A new euro or suncoast TC? Will the "new" OEM TC suffice? Or perhaps back to the stealership again? (Im not even sure what the original powertrain warranty was on these..) I have tried not to duplicate this too much as i am unaware of how much it can take.
Any help would be appreciated, thanks...
It also cut city MPG bu 2 to 3 mpg. With a good torque converter the shudder will be gone. Tunes are available to restore the engine and transmision controlers to stock or better. If you have to pay go the extra and get the Suncoast. The Chrysler one seems fine too and is being used in the newer VM diesel with more power.
Mine was two weeks old and had a coolant leak 
If i have a fuild serviced at the dealership i will literally check it in the parking lot atleast for the right color and feel.
Mine shuddered at day one, mile nine when I was still within sight of the dealership where I bought it. So I don't think the valve was worn at that point. The redesigned front pump is a simplified version that eliminates some possible sources of air leakage our transmissions had. f37 raised the engine RPMS while driving assured there wpould be enough fluid presure. Our tractor engines have great torque under 2000 rpms and the transmission fluid pressure is just starting to build.
