Jump to content

Jingle jingle underneath only in 2wd

Limelight
 Share

Recommended Posts

Chris Panke Enthusiast

Chris Panke

Posted
Posted
1 hour ago, AJMBLAZER said:

Pretty sure people have reported the noise with SU5 front axles. 

So far I've only heard of issues with the the SU4 axle which is made by American Axle Manufacturing. The SU5 axle is listed as GM Manufactured but I believe they sub that out to Delphi-Nexteer. What I'm not sure of is if the SU5 axle is only on the Trail Boss model which may be a longer axle like what GM provides with their 2" suspension lift or if certain powertrain packages require the SU5 axle.

 

Now that it is getting colder out the noise seems to have lessened. It's a real challenge to understand what would be different between the axle types as well as the influence of ambient temperature to cause the noise. So for now I wait while BBB processes my claim and call the dealership once a month to find out if the regional brand quality manager has gotten any updates from GM Engineering. Unfortunately there doesn't seem to be any other options as GM is definitely not in any hurry to fix it... 3 model years of vehicles and counting.

  • 2 weeks later...
  • Replies 1.3k
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Limelight
Limelight

Dude the constant trolling is old. You sold your “Sad Chevy” so move on and enjoy your Ford. Really-  head on over to that Forum and enjoy your truck and let us enjoy ours. Every brand has proble

Thejet07
Thejet07

Truck is ready to be picked up. I will look to see the numbers on my axle and take a picture. Shocked they called me late today and not late tomorrow. Gm also called me yesterday wanting to talk about

ILSilverado
ILSilverado

So the Truck is back and so far no noise at all. Let's hope it stays that way. Will post updates .

Posted Images

Philo Beddo Enthusiast

Philo Beddo

Posted
Posted

Happy to say this will be my last post. I ran auto four-wheel drive for about eight weeks after researching and finding that it wouldn't hurt my drive train.  I initially thought about running it that way permanently and from time to time I would switch back to two-wheel drive. I'm happy to report that I no longer have the jingle and I've been running two wheel drive for several months. I don't know if auto four-wheel drive was the reason or it just needed about 15,000 more miles, but this is my story.

  • Like 1
Chris Panke Enthusiast

Chris Panke

Posted
Posted
10 hours ago, Philo Beddo said:

Happy to say this will be my last post. I ran auto four-wheel drive for about eight weeks after researching and finding that it wouldn't hurt my drive train.  I initially thought about running it that way permanently and from time to time I would switch back to two-wheel drive. I'm happy to report that I no longer have the jingle and I've been running two wheel drive for several months. I don't know if auto four-wheel drive was the reason or it just needed about 15,000 more miles, but this is my story.

Good to hear Philo!

I cannot say that mine has corrected itself as the noise seemed to lessen or even go away with the winter temps.  When it gets warm though (mid 40s and higher) the noise comes back.

 

At this point I'm going to do the GM Suspension Lift Kit as it replaces the front CV axles.  If the issue goes away completely then I know 100% it was the SU4 axle.

 

Gangly Senior Enthusiast

Gangly

Posted
Posted
On 12/2/2021 at 9:31 PM, Chris Panke said:

So far I've only heard of issues with the the SU4 axle which is made by American Axle Manufacturing. The SU5 axle is listed as GM Manufactured but I believe they sub that out to Delphi-Nexteer. What I'm not sure of is if the SU5 axle is only on the Trail Boss model which may be a longer axle like what GM provides with their 2" suspension lift or if certain powertrain packages require the SU5 axle.

 

Now that it is getting colder out the noise seems to have lessened. It's a real challenge to understand what would be different between the axle types as well as the influence of ambient temperature to cause the noise. So for now I wait while BBB processes my claim and call the dealership once a month to find out if the regional brand quality manager has gotten any updates from GM Engineering. Unfortunately there doesn't seem to be any other options as GM is definitely not in any hurry to fix it... 3 model years of vehicles and counting.

 One axle is made in Mexico and the other in the States.  There is no selection process for what vehicles they go in.   The Trail Boss axles are irrelevant to the differential they go into.

  • Thanks 1
Chris Panke Enthusiast

Chris Panke

Posted
Posted
On 12/16/2021 at 10:52 AM, Gangly said:

 One axle is made in Mexico and the other in the States.  There is no selection process for what vehicles they go in.   The Trail Boss axles are irrelevant to the differential they go into.

Share your information sources.  Per GM regional brand quality the SU4 axle is made by American Axle and the SU5 is made by GM (most likely subbed out to the former Delphi plant now run by Nexteer). Country of origin isn't known and to be quite honest doesn't matter as same manufacturing processes are used around the world.

 

Haven't seen anyone share yet which axles go on the Trail Boss or if a Trail Boss has the same issue. It is relevant because the factory lift on the Trail Boss is same as GM factory lift that is sold as aftermarket accessory for non Trail Boss models. It comes with a different diameter cv axle to compensate for the increased angle at the differential.

 

I had the dealer install the lift with the new cv axles and so far the noise is gone. GM Engineering won't authorize repairs of replacing SU4 axles nor differentials as that doesn't fix the issue. But it seems a different axle part number (oe- different axle design) may fix the issue. So in that perspective it is relevant to know if the Trail Boss axle is yet a different part number with corresponding RPO code.

Chris Panke Enthusiast

Chris Panke

Posted
Posted
1 hour ago, AJMBLAZER said:

The noise doesn’t come from the CV shafts. It comes from the axle stub shafts inside the front axle. 

Right, the axle shaft as a component of the inner CV joint of the front axle assembly. 

 

All I know is that on my truck the noise comes from the driver's side axle assembly. With truck on the ground the passenger side inner CV joint is tight (almost no movement). However, the driver side inner CV joint has movement and makes definite metal on metal sound. Again the passenger side doesn't have this at all.  After the GM suspension lift with new front axle assemblies was installed the driver side is now tight without metal on metal contact noise.  So, seemingly corrected so far.

 

If I had to guess, I would say there is a tolerance stack up on certain axle assemblies married to certain front differentials that causes a poor fit. So the inner cv joint is "loose" and floats around in 2WD but is engaged in AWD so the noise goes away.

 

Does that sound plausible?

AJMBLAZER Enthusiast

AJMBLAZER

Posted
Posted

Maybe. However the GM fix and attempts weren’t about the cv shafts but the stub axles inside the diff. They replaced my driver’s side stub shaft and it fixed it. Still using original CV’s. 

Chris Panke Enthusiast

Chris Panke

Posted
Posted
1 hour ago, AJMBLAZER said:

Maybe. However the GM fix and attempts weren’t about the cv shafts but the stub axles inside the diff. They replaced my driver’s side stub shaft and it fixed it. Still using original CV’s. 

When you say stub shaft do you mean the outer ring axle (or roller housing) at the inner cv joint? The "short" or "stub" axle mating to the front differential in the attached image.

 

If so then that makes sense because that is the component that fit loosely on my truck. My dealer won't attempt a repair though because of the GM bulletin. 

CV-axle.jpg

Jma0421 New Member

Jma0421

Posted
Posted

On my 2019 silverado high country 6.2 i put a 2 in leveling kit in the front and the noise is gone. 

  • Thanks 1
AJMBLAZER Enthusiast

AJMBLAZER

Posted
Posted
15 minutes ago, Chris Panke said:

When you say stub shaft do you mean the outer ring axle (or roller housing) at the inner cv joint? The "short" or "stub" axle mating to the front differential in the attached image.

 

If so then that makes sense because that is the component that fit loosely on my truck. My dealer won't attempt a repair though because of the GM bulletin. 

CV-axle.jpg

Neither. That assembly is the CV shaft/axle. You buy it as one unit. The stub shaft is the short axle shaft that goes from the differential to the end of the axle where the Cv shaft attaches. 
 

https://www.rockauto.com/en/catalog/chevrolet,2020,silverado+1500,5.3l+v8,3444633,drivetrain,axle+shaft,10439

  • Like 1
  • Thanks 1
EricTheRed Enthusiast

EricTheRed

Posted
Posted
9 hours ago, Jma0421 said:

On my 2019 silverado high country 6.2 i put a 2 in leveling kit in the front and the noise is gone. 


I’m glad to hear there’s a fix. Thanks for sharing. I’m looking at a few options with UCAs.

Gangly Senior Enthusiast

Gangly

Posted
Posted
On 12/18/2021 at 7:46 AM, Chris Panke said:

1) Share your information sources.  Per GM regional brand quality the SU4 axle is made by American Axle and the SU5 is made by GM (most likely subbed out to the former Delphi plant now run by Nexteer). 2. Country of origin isn't known and to be quite honest doesn't matter as same manufacturing processes are used around the world.

 

3) Haven't seen anyone share yet which axles go on the Trail Boss or if a Trail Boss has the same issue. It is relevant because the factory lift on the Trail Boss is same as GM factory lift that is sold as aftermarket accessory for non Trail Boss models. 4)  It comes with a different diameter cv axle to compensate for the increased angle at the differential.

 

5) I had the dealer install the lift with the new cv axles and so far the noise is gone. GM Engineering won't authorize repairs of replacing SU4 axles nor differentials as that doesn't fix the issue. But it seems a different axle part number (oe- different axle design) may fix the issue. So in that perspective it is relevant to know if the Trail Boss axle is yet a different part number with corresponding RPO code.

Your using axle, CV, and differential interchangeably so I am somewhat confused, but I'll try to make do with that I can gather from your post.

 

1)  I apologize, I misspoke when I indicated the differentials were made in Mexico., I should have been clearer and used the term "utilized".  From prior posts over the past 2 years on this website, and others, information has been provided that indicates one of the differentials (not axles) is predominantly used in Mexico trucks while the other isn't. 

2)  I whole heartedly agree, the same manufacturing tolerances are required around the world per given manufacturer.  However, the SU4 and SU5 are completely different designs from completely different manufacturers so there definitely WILL be differences in the two differentials that do not allow for an apple to apple comparison.  

3)  Trail bosses have the same issue because its not the axles, its the differential that's the issue.  If you have proof otherwise, please post.  For your reading pleasure, or if you get bored, please check out this informative post on the SU4 differentials.  I believe you will find some clarity there.

 

4)  The Trail Boss axles are not any different in diameter, its their length, as shown by users who have measured and compared the two.  If you have quantitative proof otherwise that shows them to be wrong (and please tell me its not from the mouth of a dealership technician or parts salesman), please post it since I would much rather admit I'm wrong, learn the correct answer and move forward, than to sit here and give out false advice.

5) If new CV's cured your issue, then you didn't have the same "Jingle-Jingle" issue as others.  The issue is internal to the differential and not related CV length or design.

Chris Panke Enthusiast

Chris Panke

Posted
Posted
On 12/18/2021 at 4:34 PM, AJMBLAZER said:

Neither. That assembly is the CV shaft/axle. You buy it as one unit. The stub shaft is the short axle shaft that goes from the differential to the end of the axle where the Cv shaft attaches. 
 

https://www.rockauto.com/en/catalog/chevrolet,2020,silverado+1500,5.3l+v8,3444633,drivetrain,axle+shaft,10439

 

Understood now.  Your meaning is the mating part of that joint by located within the differential assembly.  That rockauto link has some interesting detail there and honestly, I hadn't thought to reference them as well for this issue.  Based on the image, it looks like there is a different stub shaft based on the front supplier axle code.  The SU5 supplied axle is okay to order just the stub shaft but the SU4 supplied axle requires you to order the half shafts along with the stub shaft. 

 

So it seems there is definitely a design difference between SU4 and SU5 axles.  According the rockauto description, the SU4 has a larger lead in chamfer.

 

I really hope the stub shaft repair on your truck is the fix and that GM Engineering can get off their ass to approve this repair at the dealerships.  Good luck and thank you for the good explanation.

 

image.thumb.png.04c8950fac04e606ca734db51c2ff0a4.png

Gangly Senior Enthusiast

Gangly

Posted
Posted (edited)

Also, I failed to mention that the "Jingle Jingle" is only experienced in the SU4's, not the SU5's, per GM documentation.

 

Per 

"Some customers may comment on a squeak or chirp noise in 2wd that goes away in 4wd. Some people may also describe it as a metallic jingle, ringing, click or tick. Condition is easiest to duplicate in warmer ambient temperatures, after approximately 30 miles of driving and is barely audible. Technician may notice that the noise seems to be from the front left axle seal area. This information only applies to the SU4 axle in pick up applications AND all utilities.

This condition does not affect durability and or operation of the vehicle but may be annoying to some customers. Test drive the vehicle and confirm the noise is in fact as described above and inform the customer that as soon as a repair is validated this document will be updated communicating that repair to the dealer. "

Edited by Gangly
  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,759
    Total Members
    8,960
    Most Online
    DM22
    Newest Member
    DM22
    Joined

  • Who's Online   3 Members, 0 Anonymous, 2,588 Guests (See full list)

  • Latest Articles

  • Posts

    • B14Sierra
      Cam chain tensioner question

      By B14Sierra · Posted

      So I'm in the middle of a DOD AFM delete on my 6.2 L86 Sierra. I had a pick holding the tensioner but after I got the Cam phaser gear off I was cleaning off all the rtv and apparently I didn't have the pick seated far enough in. I bumped it and the tensioner sprang forward.  I think everything is good but I want a second opinion. The top of the tensioner is just a looped piece of plastic that rides in that channel right? There is no spring or anything is there? I got the gear and chain back on and it seems tight and everything looks right. I'm hoping nothing fell out.
    • dna9656
      No low range 4 x 4

      By dna9656 · Posted

      My 2015 1500 LTZ Silverado suddenly won't go into 4 x 4 low. It will go into 4 x 4 high.
    • asilverblazer
      Transmission Woes :-(

      By asilverblazer · Posted

      Yep, just a quick reference point.    My main point being I’d do a thousand other things before I’d pay 10k for a transmission.    Speaking in ignorance cause I don’t look at these trucks, what is it worth? 20k?
    • asilverblazer
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By asilverblazer · Posted

      I think users are going to want to pick their monitored parameters, which parameters they want to see first.    It should probably start with baseline at a minimum and adjust to learned, but be able to overlay baseline for comparison.   A simple severity level would be able to determine what type of alerting is appropriate or user selectable.    Why not use the OBD port though?   I think a phone connection would be a good idea, push notifications type deal.   Number 1 issue is having data is useless if you don’t know what the data should be under normal conditions. 
    • Chuck FB
      summer road trips in the 2026 2500HD

      By Chuck FB · Posted

      I thought I would use your thread and add to it as I just did my first longer drive with my truck in the last couple of days. I drove from the Grande Prairie area of Alberta down to Edmonton and most of where I drove in the city was the ring road so fairly free flowing but a bit of stop and go as well in the city. Stayed the night and returned home and not too many stops along the way each way but every restart and certainly every cold start sets it back for fuel mileage. Why I say that is I see some people will cherry pick a fuel mileage leg after the vehicle had been warmed up driveline wise before hand and its a forgiving ( easy rolling drive leg for example ) and call that their fuel mileage which can give a false perception of reality. I was not heavily loaded at all but never the less the flip bak cover, rubber bed mat, various tools etc and extra jerry cans of fuel all way up to a few hundred pounds of dead weight so its not an empty truck. The cold inflation tire pressures are set more near the freezing point so once they are warmed up driving I was showing 45 front and over 40 rear and realize high inflation pressures would help a little in fuel mileage but certainly not the ride on our crap sections of highway. The weather was good so was not raining as that can really drag mileage down, in fact I had a bit of a tail wind on average driving home. Most people on here would never have driven on that freeway to visualize it but its got a fair bit of rolling type of landscape with numerous river valleys. For the most part I had it on cruise set to 62 although kicking it off if I caught it in time before it started down shifting and self braking going down the grades. Most of the more substantial grades its shifting into 7th I believe as 8th just doesn't have it. Total distance round trip was 643 miles and my overall average and I did refuel three times in all, figured out to 17.65 miles per US gallon. My best fuel mileage section refuel within all of this figured out to 18.46 and these are all hand calculated figures. I find if anything that the trucks computer can be over optimistic, sometimes its pretty close but other times its stretching it. On paper persay in theory the truck would have just about made it on fumes for that whole drive without refueling once.    Which made me think of the topic thread of the wonder if these trucks could do 20 mpg and that is a good question, certainly would have to be on an easy going flat highway, no head wind, the right temperature, not packing around a bunch of dead weight and puttering along even slower than I was I would suspect and going steady and not stopping to smell the flowers or take a piss !. It probably is possible but not without effort to attain that with the wind resistance and weight of these trucks. Of course on my drive most people are passing me if they have the power as per loaded highway tractors, never mind a lot of speedy vehicles but the speed limit is 68 and most are at or well over that. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...