Jump to content

Recommended Posts

Posted

Coming from the front right, I occasionally hear what feels and sounds like I'm going over a rumble strip along the edge or middle of a two-lane. It's at various speeds, and seems more likely to happen on slight curves. I'm thinking wheel bearing, but would welcome any other ideas. Thanks in advance for your thoughts!

Posted

That is most likely torque converter lockup starting to slip or fail during engagement.

  • Like 2
Posted

It could also be a sign it is time to replace your transmission fluid especially if it is the older fluid before they made the change to the newer fluid.  The older fluid if I recall seems to absorb water and would cause the same symptoms. My 2018 I bought as a certified pre-owned had the older fluid. The dealer had never run it up to the transmissions operating temp and didn’t know it was having the problem. After I made them aware and raised a stink about it they had it flushed and the fluid replaced with the new fluid pretty quickly.  The problem went away. That was 2 years ago.

Posted

It is definitely worth a fluid change.  Caught early enough you can save it.  Just don't keep driving it that way.  If it comes back soon you can try an additive (Lube Guard 63010) to buy some more time.

Posted
2 hours ago, lonestardiver said:

It could also be a sign it is time to replace your transmission fluid especially if it is the older fluid before they made the change to the newer fluid.  The older fluid if I recall seems to absorb water and would cause the same symptoms. My 2018 I bought as a certified pre-owned had the older fluid. The dealer had never run it up to the transmissions operating temp and didn’t know it was having the problem. After I made them aware and raised a stink about it they had it flushed and the fluid replaced with the new fluid pretty quickly.  The problem went away. That was 2 years ago.

That new fluid for the 8 speed transmission only. 6 speed takes the Dexron 6 fluid.

If the rumble is from the converter, I'm pretty sure it's too late for a fluid change to help. How many Miles on transmission 

Posted (edited)

One year old transmission rebuild, stem to stern. I've had it back to that shop, who have a good reputation, and they deemed it fine. To me, the rumbling does not appear to be shift related.

 

It's frustrating because the noise only exhibits itself occasionally, and of course never with the mechanic in the truck! My guy is looking at the wheel bearings today, so maybe I will know more after that.

 

Thanks again!

Edited by ajs67donzi
Posted (edited)

My guy ruled out wheel bearings...goes to show what I know!

 

He "re-learned" the transfer case and front axle lock up, and we're both hoping that solves the issue.

I've only driven it twice since, without no noise recurring, so my fingers are crossed.

Edited by ajs67donzi
  • 1 year later...
  • 8 months later...

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
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,962
    Total Members
    8,960
    Most Online
    contrabombarde
    Newest Member
    contrabombarde
    Joined
  • Who's Online   0 Members, 0 Anonymous, 829 Guests (See full list)

    • There are no registered users currently online
  • Latest Articles

  • Posts

    • Thanks for all the help so far!   I did try right from 2026 right down to 2021, and only from 2023 down lets me select the option for tire psi change, but I get the vehicle not supported error!   I'll definitely try it under Chevrolet after work today, and I'll get the sensor number from gm for my truck tire sensors. And I'll let you know if it works for me under Chevrolet!   And if that doesn't work, I'm going to guess that what @Atlas said about maybe I have a different body control module could be true!  
    • From where I'm sitting this sounds like a compatibility problem. I'm assuming the 2007 was a 900-series truck, and not an 800-series (they were sold side-by-side in dealerships that model year), since it starts and runs.   This is why I HATE post-2006 vehicles. Everything becomes a huge problem when you try to keep the thing running for longer than the manufacturer has designed it to.    I can't remember when Global-A architecture started - either '10 or '11. For your sake, you had better hope it's '11, or you're going to be spending some BIG money to correct this cluster-eff. That's something you need to find out before doing anything else. You may have several computers bricked ... but the fact that it runs tells me you MIGHT be ok here.     EDIT: Just did a quick refresher. You're screwed. This is Global-A. The 2 systems are NOT compatible in the slightest. Once you get the correct engine in there that IS compatible, you're going to need to see how many computers are locked. Absolute NIGHTMARE to straighten out, too. Your buddy might be better off cutting his losses and finding something else.   Welcome to post-2006 vehicle electronics. This is why I quit the industry, and drive nothing built after 1994. This stuff takes all the fun out of wrenching!  
    • Recently acquired new 2026 Silv. 1500 WT  - L3B + 4WD,  std cab + std bed, in (duh!) Sierra White. Upgrades: replaced 'steelies' w/  Vision "Flow" black alloys,  17x8.5"; HDX nerf bar w/steps (black powdercoat); Weatherguard large/deep alloy saddle toolbox; Michelin fitted bedmat (sale, perfect fit) Weathertech door sill guards TBD: rear wheebox liners 4x black fender arch trim - searching for best  (Putco: chrome only; not looking for flares either!) -Bill    
    • True, hard to say what differences there may or may not be between Chev and GM as well as a production year or mid year part change either.    I just found it odd that under the Sierra choice on the Autel that many of the last few years of production year did not include the choice of changing the tire pressure but if that is an Autel thing or a GM thing as to why the choices were not there. Knowing what tpms sensors are on the truck should give some guidance into which choices on the tool even make sense to try as I wouldn't give up just yet with the tool but I guess he will see what if anything he comes up with if he finds out a bit more info and tries a few more things on the Autel. 
    • I'm sure if you went to a junkyard where you go in and pull the part off the truck yourself, not a used part place where they do it for you, you can get that part on it's own.  Depending on if and what else you would be buying, and time of day, they might even just skip over adding it as a item to the bill.
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...