'24 2500HD Gasser Allison 10spd Valve Body Issue

silversteverado · August 18

I searched around the forum but didn't find any info if it's already being discussed. Apparently, there is a problem with the valve bodies and no one has a clue when it will be resolved. My '24 2500 with 26k miles has been in the shop for 3 months now. The problem occured very shortly after the trucks crash detection braking system activated but it seems it's a well known issue.

BuckWallace · August 19

What symptoms are/were you experiencing?

lineman1234 · August 20

First well known i have heard of. I have over 15,000 miles on my 2024 3500 gasser and not a bit of a problem on anything.

But then again, first thing i did when i got in it and headed home, was to shut all the safety stuff off, and its never been turned back on.

Edited August 27 by lineman1234

20SierraL8T24 · August 22

Mine is in the shop now with a nasty shudder and loud whine. Dealer has had it a couple days now. 12k on mine.

Edited August 22 by 20Denali22

GMCustomerService · August 22

18 hours ago, 20SierraL8T24 said:

Mine is in the shop now with a nasty shudder and loud whine. Dealer has had it a couple days now. 12k on mine.

We are sorry to hear of this noise concern you are facing with your Sierra and would like to help investigate further for you. Please send us an email to [email protected]. Be sure to include your Username and Forum name in the subject line with additional details. We look forward to hearing from you.

BCGM · August 26

On 8/20/2024 at 4:46 PM, lineman1234 said:

First well know i have heard of it. I have over 15,000 miles on my 2024 3500 gasser and not a bit of a problem on anything.

But then again, first thing i did when i got in it and headed home, was to shut all the safety stuff off, and its never been turned back on.

What safety items did you shut off ?

Edited August 26 by BCGM

lineman1234 · August 27

All/everything i could/anything i could.

Added things i cant shut off but would, would be the auto locking door locks, auto headlights coming on each start, i just shut them off each start. I cant shut off the backup camera or i would. The seatbelt chime i would shut off if i could, but cant.

MORSNO · August 28

On 8/27/2024 at 7:23 AM, lineman1234 said:

All/everything i could/anything i could.

Added things i cant shut off but would, would be the auto locking door locks, auto headlights coming on each start, i just shut them off each start. I cant shut off the backup camera or i would. The seatbelt chime i would shut off if i could, but cant.

You didn't answer the question. What are all the safety things you turned off and never back on?

lineman1234 · August 28

I am not going to or need to list what ( everything ) is.

A simple search with the information under my user information and you can get the answer to your question.

silversteverado · August 28

On 8/19/2024 at 11:48 AM, BuckWallace said:

What symptoms are/were you experiencing?

Engine light on and random slow shifts

silversteverado · August 28

On 8/20/2024 at 7:46 PM, lineman1234 said:

First well known i have heard of. I have over 15,000 miles on my 2024 3500 gasser and not a bit of a problem on anything.

But then again, first thing i did when i got in it and headed home, was to shut all the safety stuff off, and its never been turned back on.

Good call on that

BuckWallace · August 28

9 hours ago, MORSNO said:

You didn't answer the question. What are all the safety things you turned off and never back on?

He wants to list out everything he can't turn off, but won't list things he did turn off. My guess is he doesn't want to answer because he has a work truck and there isn't anything to turn off.

lineman1234 · August 29

1 hour ago, BuckWallace said:

He wants to list out everything he can't turn off, but won't list things he did turn off. My guess is he doesn't want to answer because he has a work truck and there isn't anything to turn off.

WOW, now 2 people want to be spoon fed.

lineman1234 · August 29

In the blurry pic is a little orange light by the speedo diel. Its either for the side warning something is there off, and or the front collision off. Both are off.

Dont take it personal as i dont want to scroll through the screens to list what i do have or dont have and have shut off, some can/were wile driving some needed to be parked, odds are not running.

I love and wanted the regular cab WT with just what i needed. I didnt want a diesel again, and i read up on the new cheby 24's with the 6.6 gasser and 10 speed trans and went that route, and am very happy and totally trouble free so far at over 16,000 miles.