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SJones

Looking for insight regarding my 06 cummins

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I've been lurking a bunch and reading hours and hours on this forum as well as others...long story short I can tell from your posts that you are extremely knowledgeable with the cummins trucks...anyway here's my situation...I have a 2006 5.9 2500 ST 4x4...had the dreaded steering issues just recently fixed (new ball joints, track bar, pass side knuckle, t steering link, steering box/pitman arm brace, steering stabilized and new tires installed). Went with mostly Carli components. Got the truck back and it drove straight and like a new truck off the lot...truck has a revtek 6" lift...straight pipe/delete...aftermarket injectors and turbo (all but the above parts that I just recently changed came on my truck when I bought it)

anyway to my problem...got the truck back...drove it for about a day...was on a freeway on ramp with decent slope...halfway up the on ramp lost all acceleration...engine still purring like a kitten but truck just would not go..right before I lost acceleration my rear wheels chirped very slightly...there was no grinding...clunking...slipping of the tranny...or any noise of something breaking...pulled to the shoulder and first thing I did was check the drive shaft..we have all seen the lifted truck on the side of the rode with the shaft on the ground...mine was still in place...tried shifting into all gears including 4x4 to see if it would accelerate...no dice...so had it towed home...I am a refrigeration tech so I'm mechanically inclined but no auto mechanic by any means...after researching myself and a friend of mine also searching the web he actually found many guys who had the transmission filter either fall off the tranny and found it sitting in the pan or it plugged and not allowing enough pressure to operate the transmission...so that's where we have figured we would start...transmission fluid does not smell burned..also truck has about 125k miles on it...I was reading an older topic from Megaton that you had posted info on Valvolines transmission fluids...after looking through the link you posted of Valvolines fluid breakdowns I couldn't find my trucks year with a auto transmission in the list breakdown...most of what I saw was for manual transmissions...

so...I guess in not so many words I have 2 question

first one being from what I described does it sound like my buddy and I are on the right path as far as starting with the tranny filter? And secondly does the Valvoline transmission fluid for the "manual" tranny correlate to the auto trans also?

the posts for Megatrons BD tranny are from 2014 I believe so I didn't want to chime in on his post from years back...

anyway any insight would be beyond greatly appreciated! And also Happy New Year!

thanks!

Final verdict....grenaded input shaft! Previous owner had a full billet ibs

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Welcome to the forums, SJones!  I'll address your questions:

2 hours ago, SJones said:

I have a 2006 5.9 2500 ST 4x4...had the dreaded steering issues just recently fixed (new ball joints, track bar, pass side knuckle, t steering link, steering box/pitman arm brace, steering stabilized and new tires installed). Went with mostly Carli components. Got the truck back and it drove straight and like a new truck off the lot...truck has a revtek 6" lift...straight pipe/delete...aftermarket injectors and turbo (all but the above parts that I just recently changed came on my truck when I bought it)

Glad you addressed the safety issues...

anyway to my problem...got the truck back...drove it for about a day...was on a freeway on ramp with decent slope...halfway up the on ramp lost all acceleration...engine still purring like a kitten but truck just would not go..right before I lost acceleration my rear wheels chirped very slightly...there was no grinding...clunking...slipping of the tranny...or any noise of something breaking...pulled to the shoulder and first thing I did was check the drive shaft..we have all seen the lifted truck on the side of the rode with the shaft on the ground...mine was still in place...tried shifting into all gears including 4x4 to see if it would accelerate...no dice...so had it towed home...

My first consideration was the transfer case or a stripped spline coupler on the rear driveshaft.  If you engaged 4x4 and still have no movement, the vehicle should move forward unless there is no power flow from the transmission to the transfer case.

I am a refrigeration tech so I'm mechanically inclined but no auto mechanic by any means...after researching myself and a friend of mine also searching the web he actually found many guys who had the transmission filter either fall off the tranny and found it sitting in the pan or it plugged and not allowing enough pressure to operate the transmission...so that's where we have figured we would start...transmission fluid does not smell burned..also truck has about 125k miles on it...I was reading an older topic from Megaton that you had posted info on Valvolines transmission fluids...after looking through the link you posted of Valvolines fluid breakdowns I couldn't find my trucks year with a auto transmission in the list breakdown...most of what I saw was for manual transmissions...

Yes, a simpler filter starvation issue would stop power flow at the transmission.  The "chirp" is still a concern though.  As for fluids, I would only use Mopar ATF+4 or a compatible equivalent in your 48RE automatic.  The  Valvoline recommended equivalent for a Chrysler 48RE is Valvoline ATF+4:   https://www.valvoline.com/our-products/automatic-transmission-products/atf-4Do not use a manual transmission gear lube in an automatic transmission unless specified.

so...I guess in not so many words I have 2 question

first one being from what I described does it sound like my buddy and I are on the right path as far as starting with the tranny filter? And secondly does the Valvoline transmission fluid for the "manual" tranny correlate to the auto trans also?

Again, you want Valvoline ATF+4 for your 48RE automatic transmission.  If the truck came with the Owner's Manual, you will see ATF+4 listed.  Valvoline was kind enough to use the same nomenclature.  Of course, the filter could be an issue to address, start there.

the posts for Megatrons BD tranny are from 2014 I believe so I didn't want to chime in on his post from years back...

BD does an upgrade rebuild of the 48RE...See my Sonnax upgrade parts article at the magazine and also watch the BD coverage video.  (You should have the factory OD lockout.)   Here are the links:

http://www.4wdmechanix.com/Survival-Upgrades-for-Jeep-and-Dodge-Ram-Automatic-Transmissions?r=1

http://www.4wdmechanix.com/ram-truck-47re-and-48re-transmission-in-chassis-survival-upgrades-from-bd-diesel-performance/  

anyway any insight would be beyond greatly appreciated! And also Happy New Year!

Happy New Year...Share your findings, we can go from there...Moses

thanks!

 

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