anonymous wrote:
"Well now I am at 2000 miles and I am noticing the input shaft bearing (deisel rattle) when the car is not in motion, in neutral, and clutch in rest position (up). I also read that the diesel rattle was something that is common with the tremec 6060 transmissions that are in the Chally's. I am however also experiencing very hard shifts in 1-2, 2-3. "
I have the "diesel rattle" and noisy shifts on my rt 6 speed but honestly the car always shifts how and when i want it. I brought it in for them to look at it and they keep telling me it's operating within specs. I hear noise and feel feedback from the clutch pedals but the other 6 speeds i drove feel similar. Sometimes I have to throw the trans into second then first to get it in gear out of a dead stop but other than the clunkiness and noise the car shifts ok. when the weather improves and i have the time i'll probably go to another dealer and see what they say. btw here's a cut n paste i collected to show the dealer about this issue...maybe it will supply you with some ammo:
The protocol # for the "transmission grind" (official Mopar bulletin description?) is Star Series Tip (case #K38556860) "Removed Transmission and removed pressure plate and clutch, cleaned the splines of the pressure plate and clutch and input shaft, applied grease to the shaft and clutch and pressure plate splines, reinstalled clutch and pressure plate, reinstalled transmission and test drove to verify repair."
Yes, the re-lube worked wonders! My car shifts better than ever. I've driven about 6k miles since the fix and it's very smooth now without any issues. Hopefully you can get hooked up with a good tech that will look into it and research the Star Center case. It took me a good month and a half with a few different dealers before I got them to take this seriously, but once I got a tech that would look at it seriously, the fix was done in a day and under warranty with no money out of my pocket.
The notchiness you feel is the rotating assembly (such as the clutch, not the engine spinning too fast for the synchronizers to respond correctly). You need to see your dealer to have them clean and reapply a "Chrysler approved multi purpose grease" to the input shaft of your transmission, yes there is a tech bulletin for this. The grease that came on your vehicle may be too viscous (or sticky) and when you disengage the clutch from the flywheel (to shift gears) your rotating assembly continues to rotate with too much RPM. With the proper lubrication you will find that disengaging the clutch from the flywheel will result in a quicker (RPM) spool down times (of the clutch) giving your synchronizers a chance to do their job (i.e....smoother shifts).
I have taken it to my dealership over and over and they just keep telling me that "Everything is fine" Very frustrated about all of this. I have had the transmission replaced at 300 miles for Input Shaft and Throw out Bearing failures. Driveshaft Replaced for whatever reason I have no idea.. and still have bad grinding into second / and I thought the bucking was just a cold transmission but I have that too.. I am in NJ and am going to try and call that NY dealership and see if they can get me the fix. I am really hoping I can find a trusting dealership around here because the dealership I bought my car from is a pile of all things vile.
the transmission has notches. I feel them when I shift into certain gears. I feel them the most on 1st, 2nd, 3rd, and 4th. Sometimes I feel them on 5th and 6th.i just found out from rockland standard inc in new york that they know of this major problem and they are saying that dodge knows about the problem but are replacing the bad parts 2nd gear syns with the same part numbers that they are replacing, rocland has the cure with the correct updated parts call them at 877/774/4327
I have noticed that when I sometimes disengage the clutch I can feel it spinning in the pedal.
I have those "notchy" feeling in my tranny as well. 2nd has like 2 or 3 notches, and I've noticed some in 4th and maybe 3rd. I know when it was new, 1st used to notch into place, and that's gone away. Kinda made the tranny feel like something was broken, but it still drives well. I don't think the gears are grinding, for I've never driven a manual where the gears have grinded, and I don't hear any grinding, but are the notches normal?
The protocol # for the "transmission grind" (official Mopar bulletin description, I think) is Star Series Tip (case #) K38556860... I might also mention that I had a chatter or bucking back and forth when going thru parking lots at or around 1,200 RPM's. So I asked the tech, while he had the transmission out (cleaning and reapplying new grease) to check the back lash on the rear differential... He said it's within spec, but he installed some Mopar Friction modifier... Now I'm chatter free too. Its like I told the dealer, having a grinding transmission in our Challengers is like dating a beautiful woman that FARTS in public... Good luck!!
I too have a harsh 1-2 and 2-3 shift... not so much on the downshift though. I only have 1100 miles on mine and have notice the grinding (like the synchros are out of whack) is getting worse (since new).
they took the time to call Dodge / Chrysler to trouble shoot before I came in… And here is what Dodge / Chrysler told our dealer’s technician: the transmission needs to be removed and the input shaft needs to be cleaned of all grease and new (freshly provided) grease needs to be applied in its place. Apparently the (original) grease is sticky when it’s cold, so as a result the input shaft continues to rotate when the clutch is fully depressed and when it warms up the grease lubricates better and problem improves. Additionally, just a minute before the technician told me this, I was just telling the service director that I wondered if the shaft had too little lubrication on it.
That's what was wrong with mine - they cleaned and lubed the input shaft splines and it shifts better than it ever did. Good luck, hope it's also the fix for yours!!!
And it was me that had the print-out of the bulliten dismissed as unofficial at first. But I got the 'Star Center Case #' from rovertech, it's K38556860. My tech was able to locate the case with the fix listed, which is what I had originally given to them, but they needed to find it for themselves. It's not a RRT or TSB, but in the Star Center database, which is apparently their technical knowledge base reference resource where they compile all of their problems and resolutions so that other techs can search and find answers when trying to diagnose issues. I truly feel that it was the wrong grease for our application. my transmission did it from day one, some days worse than others. At any rate, I have an idea and I'm not sure if it's true but it's the best I can come up with... I suspect the original grease was a higher temperature grease; perhaps it was the grease spec for the Viper. Back in December of 08, when I got the Challenger, I called Tremec and spoke with a real nice guy who answered my question about using Mobile One ATF (to try and remedy the grind). At any rate, in a passing (unrelated) conversation, he told me that the Viper's transmission is subjected to much higher temperature than a typical vehicle. In the Viper the transmission is fully covered up in the transmission tunnel. I suppose with a full plastic shield. And between the engine and transmission the heat gets a bit high. With that being said and speaking with complete conjecture here, I wonder if that grease was used on our vehicles and given that our transmission is not exposed to the same temperatures the Viper is, that our grease doesn't soften enough to bring it back to being a lubricant.?