04 6 speed 4*4 long bed CTD knocks after each shift. Noise stops with each shift when rpms are higher. Sounds like muffler tailpipe hitting something midway under truck. Looked under truck, but all pipes, mufflers are tight. Could it be drive line knock? Drive line support with rubber bushing seems sloppy but intack. Any other ideas?

 

stick or auto?

 

sorry didn't see that up there need to go to the user cp and fill out the sig so it shows up in the bottom, but since its a six speed have you developed any vibration in the shifter?

 

Filled out Signature, Thanks, Have not noticed vibration in the shifter, but will take note in future. G. Fain

 

How many miles do you have. I would check your Rear U joints.

 

I have noticed this in my 2003 l/b Quad cab with the HO cummings auto trans also... ive taken it in 3 times and they can not replicate it. It still does it and I would like to know whats causing it

 

...could be anything, including a loose motor or transmission mount! Find a big parking lot (empty) and have someone drive along side of you, both sides, and see if the noise can be tracked that way.

What did the dealer look for?



Gotta say it: It's CUMMINS, NOT Cummings!

 

I Had Them Check The Tranny Etc. They Basicly Drove Up Some Hills At Slower Speeds Trying To Get It To Do It Again.

 

did you ever come up with a solution to the problem i have a 01 thats doing it in the lower gears ilke 2nd and 3rd and only in the low rpms then its gone in the high end sounds like a loose hub cap but thats not the case. iam thinking the u joints or the drive line.

 

Just got my 02 2500 4x4 back from the dealer with a new double cardion(sp) joint in the front drive shaft. Sounded like a loose muffler while costing only but could be heard by the front drivers tire.

 

When my double cardan went, it sounded like rocks in a tin hubcap.

Glad you got it fixed.


phox

 

i got mine fixed mine was the three ujoints on the rear drive line they all were major toast with lots of extra play in them. got it all buttoned up and hit the road and it was night and day differance no more hard shift and no more tinking sound.