Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

Recommended Posts

As discussed in a previous post. I went to my local 4WP and they told me about an issue they came across. Apparently on the 2WD trucks, the Automatic Transmission Extension Housings is damaged or not properly installed from the factory. The seal leaks (transmission fluid) and/or wears out prematurely and this causes .... wait for it ... our dreaded shake with the 2WD trucks. Definitely something fishy with the transmission and drive shaft. This has worked so far on a GMC and Chevy. The part number is ACDELCO 24224676. $75 for the part plus labor. Did it fix my shake? About 80% there. I can now get up to 90 MPH without the console throwing itself violently. Unfortunately the shudder between 30 and 55 MPH persists. I still have wheel hop, so that is probably attributed to the crap axles and the trash leaf springs. Good luck YMMV.

Thanks for the info. I found a GM service center that knows about the problem, but they have to go through GMs procedural crap. The shudder between 30-55mph is the torque converter. GM tech told me that himself. I'll keep this updated in case it helps anyone out. They'll start working on my truck next Tuesday.

Edited by lylknutsak
  • Like 1

Share this post


Link to post
Share on other sites

 

what about 4wd ? same problem ?

 

the problem with this vibration is an expensive fix to recall and apparently not life threatening or causing damage beyond uncomfortable ride

 

it may be expansive due to time or labor or parts no one can tell but GM .

So far this has only been performed on 2WD trucks.

Share this post


Link to post
Share on other sites

So far this has only been performed on 2WD trucks.

The 4 wd has an adapter where the 2wd tail housing would bolt that connects the t-case to the transmission. It's just a hollow piece, not to say the t-case doesn't have issues at the intergrated tail piece where the drive shaft conncets. If that really is the issue it explains why GM doesn't want to fix it. 2 grand a pop plus labor for the t case.

 

130619TK04-219.JPG

  • Like 2

Share this post


Link to post
Share on other sites

Well, I'm out.

 

Traded the GMC in on a new truck and I am very happy about it.

 

Good luck guys - I really, really, really hope we do end up finding a solution...

What did you get?

Jim

Share this post


Link to post
Share on other sites

can you at least put something on the front end of that ugly thing to make it look better!? GAH! It needs.. something. UGLY!

Share this post


Link to post
Share on other sites

The Zr2 is looking frickin awesome!

Share this post


Link to post
Share on other sites

 

GYyMd1K.jpg

 

ZR2 and I'm in love again!

You got some actual pics? Ive heard terrible stories about the trannys in those. But, no vibrations at all?

Share this post


Link to post
Share on other sites

You got some actual pics? Ive heard terrible stories about the trannys in those. But, no vibrations at all?

I've heard the same thing, that they are having transmission issues. A friend of mine encountered a lady that couldn't get the key out of the truck because the truck thought the tranny was in gear when it was in park, couldn't start the truck either because of the same reason so he hit up another friend that's a mechanic and he said the colorados and canyons have been having a lot of transmission issues.

Share this post


Link to post
Share on other sites

Thinking of trading my 2014 in on a 2010. Pretty sad when you look to downgrade 4 years because you know that era of truck is tough as nails and typically issue free. My 15 is my favourite truck I ever had, the 14 is my most hated truck I have ever had. Case by case basis. I think it a combination of cheaply manufactured torque converters, driveshafts, and rear axle shafts being made by 6 y/o kids in China. They build them cheaper and cheaper and charge more and more. Anyone with SLT's or Denali's shaking, or mostly the lower trims? My SLT is like silk but this WT is like your driving down as highway made of railroad ties.

  • Like 1

Share this post


Link to post
Share on other sites

Thinking of trading my 2014 in on a 2010. Pretty sad when you look to downgrade 4 years because you know that era of truck is tough as nails and typically issue free. My 15 is my favourite truck I ever had, the 14 is my most hated truck I have ever had. Case by case basis. I think it a combination of cheaply manufactured torque converters, driveshafts, and rear axle shafts being made by 6 y/o kids in China. They build them cheaper and cheaper and charge more and more. Anyone with SLT's or Denali's shaking, or mostly the lower trims? My SLT is like silk but this WT is like your driving down as highway made of railroad ties.

 

900's were a step backwards from 800's the K2's are a far superior truck so your actually stepping backwards farther than you think....

Edited by mookdoc6

Share this post


Link to post
Share on other sites

So I am finally rid of my shaky truck. I went through the BBB process and it was extremely easy and straightfoward. I had detailed notes of each visit, with who I spoke to, tech names, etc and it proved very helpful.

 

It was comical how GM attempted to defend the truck. I won't get into details other than the fact they told the arbiter this was their first ever complaint about the vibrations. I almost fell out of my chair.

 

Anyone with a vibrating brand new truck should definitely go through the BBB as soon as they hit their state lemon law requirements. I was awarded a full buyback minus mileage that I had put on the vehicle.

 

Never again will I own a GM product and I have been extremely impressed with my RAM for the first month of ownership. GM consistently lied throughout the entire process and was a complete pain to deal with.

 

Good luck to all and if you want any more info about the BBB process just send me a quick message

 

post-172114-0-10799700-1503607317_thumb.jpg

post-172114-0-10799700-1503607317_thumb.jpg

post-172114-0-10799700-1503607317_thumb.jpg

post-172114-0-10799700-1503607317_thumb.jpg

  • Like 1

Share this post


Link to post
Share on other sites

You got some actual pics? Ive heard terrible stories about the trannys in those. But, no vibrations at all?

 

Actual pics? Those are actual pics of my truck...

 

No, zero, zilch, nada vibrations at all and the transmission is working very well. Granted, it has 288 miles on it so far but I actually really like the 8-speed for shift quickness. I think it doesn't suit some peoples driving style but I've had no trouble.

  • Like 1

Share this post


Link to post
Share on other sites

 

Actual pics? Those are actual pics of my truck...

 

No, zero, zilch, nada vibrations at all and the transmission is working very well. Granted, it has 288 miles on it so far but I actually really like the 8-speed for shift quickness. I think it doesn't suit some peoples driving style but I've had no trouble.

Well you had one pic up there and it looks like it's from a magazines so lol

Share this post


Link to post
Share on other sites

900's were a step backwards from 800's the K2's are a far superior truck so your actually stepping backwards farther than you think....

I can't believe you said that. The 900s are by far the best generation truck GM has made. I went from an 09 to a 2014(worst generation) back to a 2009 Avalanche.

  • Like 1

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Content

    • By rkiethbennett
      2016 Denali 3500 crew cab. Passenger side brake light / turn signal lamp is not working.  Running light is working.  New bulbs.  Is there a fuse or relay that can be checked?  I have not been able to locate one.
    • By dwchapmanjr
      2015 GMC Yukon Denali - 32k miles (6.2L + 8spd).  I don't normally do highway speed but noticed yesterday that I had a slight pedal vibration when doing so and it only seems to happen at 60+ mph.  My daily drive is under 40mph and no vibrations there.  I'm assuming its likely a rear rotor since I don't feel it in the steering wheel.
       
      I looked back on my records and it appears front brakes were at 7mm a year ago and rear at 4mm.  Both in the "green" according to dealer.  I'm not sure if its an eyeball check and they just mark good or if they actually measure but it was 10k miles ago and a year so I likely need new pads.
       

       
      All this to say, with this life and mileage is anyone seeing pad life and possibly rotor life exhausted so quickly?  This is a heavy vehicle and the 6.2L gets it up to speed quickly and it does seem to take a lot more to stop it(always this way so I don't think its the vacuum recall).
       
      If anyone is getting a 4 wheel brake job at the dealer, what has it run you?  Mine is running a special for $139 per axle for pads and $189 per axle for rotors but I'm hoping if it is a warped rotor I only need 1 pair.
       
      Also noticed this on the front passenger rotor.  Is that defined of a groove normal?  To the touch it doesn't feel grooved.
       

       
      Tire inflation is normal.
    • By carsonj493
      Just the other day I started to notice a vibration/rattle noise coming from the front passenger side around 70mph. It almost sounds like the windshield, or what you would expect something rattling against glass to sound like. I can’t pinpoint where it’s coming from, but’s somewhere within the vicinity of the passenger side dash/windshield/headliner area. Sounds more like it’s around the headliner area. 
       
      It it mostly only seems to happen at higher speeds (70+mph) although today I did just today hear it at 60mph for the first time. My guess is maybe the the windshield is leaking some air since it happens at higher speeds??? Because going over bumps doesn’t seem to have any negative or positive impact on the noise. 
       
      Anyone else have any issue like this, or any guess as to what it might be?
    • By Chuck B.
      Anyone know what this noise is? It's very intermittent. Seems to do it most often between 40 and 50 MPH cruising with maybe a slight up hill. Never does it on coast or heavy acceleration. Very hard to tell where it's coming from. 
      20190521_191545_001.mp4
       
      2014 Sierra Denali 1500
      Crewcab, 5'8" bed
      6.2 Litter
      3.42 axle ratio
      about 118,000 miles
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Forum Statistics

    210,628
    Total Topics
    2,258,419
    Total Posts
  • Member Statistics

    181,506
    Total Members
    8,960
    Most Online
    kennyf1585
    Newest Member
    kennyf1585
    Joined
  • Who's Online   24 Members, 0 Anonymous, 746 Guests (See full list)

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.