Attention: TDR Forum Junkies 
TDR,
I picked up my new 2018 3500 4X4 with a G56 transmission last week. I've driven 150 miles on it now and have a few questions.
1. The owner's manual talks about shutting off the engine with the clutch depressed to decrease transmission rattle. How important is this step? I've shut down the engine both with the clutch depressed and in neutral without the clutch depressed, and I don't know if I can tell a difference.
2. I've had a couple rough up-shifts if I don't keep some throttle in as I begin depressing the clutch for the shift. The worst one was today going from 2nd to 3rd, where I felt a significant hesitation/clunk/bang in the drive-train. I also feel more feedback/vibration in the clutch as I depress it past the friction point than I am used to. Is this a function of the turbodiesel and normal? I've been driving manual transmissions for the last 15 years, but this is my first manual diesel.
3. In 6th, I'm hearing a high-frequency, low volume, "clicking-sound" coming from either the engine or shifter (I haven't been able to completely isolate it yet.) The clicking is a function of engine speed and throttle position. I only hear it in 6th gear when I have throttle in. If I'm in 6th with no throttle in, I don't hear it, but it'll immediately start again when I begin adding throttle. It seems to be louder with more throttle in and higher frequency with higher engine speed. I thought it may be coming from the shifter itself, and it seemed to decrease when I hold the shifter "farther" in 6th gear (pull shifter towards seat), but I haven't had enough time to play with it. It's not every time I'm in 6th, but it's happened on two separate days now, usually about 10-15 minutes into driving after a shift from 5th to 6th, and it'll come back if I come out of gear from 6th, and then back into 6th. Any thoughts?
Thank you for the help - I feel like I'll be a regular member on the forum.
-Adam
I picked up my new 2018 3500 4X4 with a G56 transmission last week. I've driven 150 miles on it now and have a few questions.
1. The owner's manual talks about shutting off the engine with the clutch depressed to decrease transmission rattle. How important is this step? I've shut down the engine both with the clutch depressed and in neutral without the clutch depressed, and I don't know if I can tell a difference.
2. I've had a couple rough up-shifts if I don't keep some throttle in as I begin depressing the clutch for the shift. The worst one was today going from 2nd to 3rd, where I felt a significant hesitation/clunk/bang in the drive-train. I also feel more feedback/vibration in the clutch as I depress it past the friction point than I am used to. Is this a function of the turbodiesel and normal? I've been driving manual transmissions for the last 15 years, but this is my first manual diesel.
3. In 6th, I'm hearing a high-frequency, low volume, "clicking-sound" coming from either the engine or shifter (I haven't been able to completely isolate it yet.) The clicking is a function of engine speed and throttle position. I only hear it in 6th gear when I have throttle in. If I'm in 6th with no throttle in, I don't hear it, but it'll immediately start again when I begin adding throttle. It seems to be louder with more throttle in and higher frequency with higher engine speed. I thought it may be coming from the shifter itself, and it seemed to decrease when I hold the shifter "farther" in 6th gear (pull shifter towards seat), but I haven't had enough time to play with it. It's not every time I'm in 6th, but it's happened on two separate days now, usually about 10-15 minutes into driving after a shift from 5th to 6th, and it'll come back if I come out of gear from 6th, and then back into 6th. Any thoughts?
Thank you for the help - I feel like I'll be a regular member on the forum.
-Adam
