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Chevy Silverado and GMC Sierra Transmission Problems



  • ceb66ceb66 Posts: 70
    Truck is four months old and I'm headed back to the dealer AGAIN!

    Less than a week after delivery, the truck was in the dealer's shop for a week waiting for torque converter parts. That's in addition to the other times it's been in the dealer's shop.

    Like el hoppy, I'm headed to a different GMC dealer. Not the dealer that sold me the truck. The selling dealer seems scared I'm going to go to buy-back arbitration. The other dealer listens and will talk with me without repeating GM's customer service montra.

    At this point, I'd be somewhat impressed if they could get the "pull" out of the steering wheel!

    If this was a television or a computer, that would be one thing. But this is a lot of money for most people like me. That's what makes it difficult when trying to be level-headed about multiple issues that GM admits to.

    Very disappointed in GM.

    Stay in contact with GM. Maybe they'll "TSB" some of these common problems they're aware of.
  • ceb66-

    post the miles of your truck and all of the specifics and make sure you state that the truck is not reliable and Chucky may be able to help you ease the pain. I have given up with GM and that is excatly what they want us to do. They just sell the damn things and if it fails completely and leaves you stranded, well.... they will probably fix it, in time.
  • ceb66ceb66 Posts: 70
    edited September 2011
    Hi mloecker,

    I appreciate the response.

    I'm trying to get something accomplished. I know it may be futile. We were sold an inferior product. GM knows it. There should be some response other than "it's supposed to do that"! In addition to other mechanical problems, the steering wheel pulls and I'm told it's operating as designed?

    I've spoken with enough people (not on forums) that have similar issues. GM is aware of them.

    The Escalade guys I've talked with are REALLY vocal. Caddy drivers are usually type-A/aggressive personalities that won't take "no" for an answer. Plus they've spent a bit more than we did for the same problems (same motor/drive train). A friend with an Escalade is really hammering away on GM. He's retired, intelligent and very aggressive. I'm curious to see if he gets results.

    I ignore the rhetoric and continue to try to get the issues resolved.

    I'm very surprised at the lack of quality in this GMC truck. And I'm disgusted by the half-witted response from GM. They were a better company than this.
  • ceb66ceb66 Posts: 70
    Man, I should have done a little more research before giving GM my money. I never imagined I'd have to worry about multiple mechanical issues with a brand-new General Motors truck. Let alone a response of operating as intended when I question why my truck pulls growls slams slips and drops air conditioning .

    The F-150 complaints on this site (Edmunds) regarding power train/transmissions as opposed to the Silverado/Sierra complaints are roughly half!

    The Sierra drive train complaints problems have been in the top five issues on this site since I purchased this truck four months ago.


    If you have similar issues with a new GM truck, contact them. We deserve a new truck. Not a truck that operates like a used truck!
  • Ceb
    my truck has had the knocks in the morning.
    it has't done it in awhile but when it does it sounds like an engine with no oil.
  • Well... as I am slowing down and not stopping and my foot on the brake peddle, the moment the trans. downshifts it causes the car to move forward. I know this sounds strange but it happened several times. The reason I am saying out of controls because the car's movement forward is like I am pressing the acceleration peddle where in actual fact I am slowing down and pressing the brake peddle.
  • I believe what you are trying to say is that the transmission is experiencing a rough downshift. It needs to be looked at by the dealer. The truck is not accelerating forward (although you may feel a pitch movement) nor out of control, obviously since you are still driving it.

    I understand English may not be your native language and wanted to clarify your situation.
  • gmcustsvcgmcustsvc Posts: 4,251
    Thank you for your input; we'll forward this to the appropriate brand quality group.
    GM Customer Service
  • peteputpeteput Posts: 10
    edited September 2011
    Apart from not having the nav option in my truck, everything else is in it. unfortunately, it does not have a real powertrain. It's embarrasing, stressful to drive, and further more, pathetic that customer service can hide behind the counter to tell loyal customers - > live with it. Suck it up princess. It's designed this way. Allot of engineering went into this. Unfortunately not enough. I have rented a car to give my truck to the shop supervisor to drive it around so he can feel how it drives.
    I am enraged that I can be spit in my face when it's a known problem and they will not fix it. If I am told one other time, it's how they are and I will have to live with it, GMC will surely have lost a loyal customer.
  • chuck1chuck1 Posts: 1,405
    You have a total of one post...please explain your frustrations.

    How is it stressful to drive?

    What problem(s) are you talking about?

    What model do you have?

    How many miles on the truck?
  • I owned a 2003 1500HD Crew cab. Never had any problems with it apart from the normal use. It was a dream to drive. That was a real solid truck. I don't know what I was thinking one morning but decided to get a new one. Thinking if this one is such a wonderful truck(the milieage was getting up there),the high quality should carry over "for sure" into the new ones. That was the worst mistake I have ever done regarding vehicle purchasing.

    Sierra Z71 2010.
    Approx KMs -- 35k

    lagging - press on the gas to move, and it takes a few seconds for something to engage to get the truck moving. It's like your spinning in butter and nothing is happening. Then suddenly, your head is pushed back because the powertrain suddenly kick into gear. Very impressive don't you think. "Hey passengers - your in for a rought ride in this all leather piece of crap". Please sign here as I am not liable for any neck injuries you may incure during this trip.

    slowing down - forced forward - almost hit another vehicle while I am trying to push the brake through the floor on decellaration to stop. good thing it was not one of my kids driving.

    Clunking - Nice one. "what was that noise" Oh don't worry honey. Nothing fell out of the truck just yet" :(

    driving feels like a standard - I should of bought the truck with a standard trans. The truck feels like I am driving one :confuse:

    But HEY. Once I am on the highway and got the cruise control on, WOOOOHOOOO. Now I can ponder as to how I can get rid of this piece of crap.

    - I am sure the resale value of this truck will sky rocket through the roof when someone else sees it. I just won't let them test drive it. :mad:

    Now tell me something. If you got a vehicle that is unpredictable, would you lend this to your kids? To anyone else for that matters :mad:

    Oh lord! I am in a pickle when someone is going to rear end me and I have to press on the gas to get out of there way before I get hit! OMFL. I better calculate a few seconds more into my reaction time because I have NO CLUE IF MY TRUCK WILL MOVE IMMEDIATELY WHEN I PRESS ON THE GAS OR WAIT A FEW SECONDS BEFORE I AM JERK IN MY SEAT BECAUSE IT SUDDENLY WANTS TO MOVE FORWARD A FEW SECONDS AFTER.



    Stopping and moving forward in drastic situation that are caused by other drivers is by far, key functions which will determine if your in an accident or not. A few seconds to wait until your F$#% truck moves or stops will make it or brake it in emergency situations.

    I am a diffensive driver. I am always, ALWAYS looking around. Too many times, I prevented accidents where some other stupid driver was not paying attention to what they were doing. When your driving a solid vehicle like my previous 2003 1500 HD crew cab that I knew how it handled and it was predictable, it adds to the driving confidance, plus no stress.

    Now I am driving an unpredictable piece of crap. Each time I hop into my truck, I just think. "Now what!" What kind of mind bottling experience will I have on my trip to somewhere" Oh goodie! what will my truck show me today, which has not shown me before. Oh my god! I may experience something new today.

    Now you tell me! Am I a statisfied GM owner? Own up to the powertrain issues GM and fix them.

    I can't wait to see what the shop supervisor will tell me. The unfortunate part is, I am 95% sure I know what his response will be. It won't be a good one.
  • Got my truck back from the shop. GM just lost a loyal customer. :mad:
  • I hear you peteput, its loyal customers like you that GM will miss the most and this is same on GM.
    my 2011 Silverado purchase was my first GM truck, and it will be my last.

    I have never experienced such disrespect and bad customer service like I have from GM, although my new dealership's service department is top notch they can't fix what GM will not acknowledge is broken.

    I had my yolk replaced and it helped and I thought my truck was fixed, then after a couple weeks the hard shift / clunk has returned.

    another unsatisfied GM customer.
  • chuck1chuck1 Posts: 1,405
    SO how long did the supervisor drive it? What exactly did he say? What can not drive the truck and not know the power train is clunky.

    However, what bothers me is there seems to be a "disconnect" between some owners and GM.

    Is the problem not as severe as the owners are stating? Or, is GM refusing to acknowledge their powertrain isn't that smooth?

    I suppose it's somewhere in between?
  • peteputpeteput Posts: 10
    edited September 2011
    what i wrote on my post was what was clearly stated to the supervisor. he drove it over 90kms. some city and more hwy driving. i have been with them for 10 years. they have the greatest service and they know me very well. this was my fourth attempt, and last in voicing my issues with them. when i am told that they have received many complaints about this issue, and allot of truck owners are not happy, that confirms allot. the problem with an inconsistent problem that comes up on many occassions is its based on driving style. here lies the issue. i drove a 1500 hd crew cab for 7 years and never did i have these issues with the powertrain at the time. my driving style did not change from one truck to the other. now you tell me where the disconnect is! but from this honest owner, its a piece of crap i have to live with. BTW. the sup complimented me on how great the powertrain was. said he would change nothing on this truck. now what would you do as a gmc company owner and find out that you have a big under engineered product that people are complaining about and know that deep down inside, if you fix one. you got to fix them all? how much would that cost a company that got bailed out not too long ago. you make the call on that one but in the end, i will be riding this gmc truck for many years to come. but it will be my last one unless they go back to a powertrain that should work properly. cheers
  • I am new to this website and I have been reading allot of these posts. What I am seeing is allot of repetitiveness.(I am to blame to). We login, we post, we grumble about our issues and we dispute. Allot of posts are great because we can associate our problems with others. like my issues with my powertrain, hell, now I see allot of people on this forum are having the same issues. We then attempt to get this fix by GM service by bringing in our truck and hope that the problem arises when they road test it. Well we all know where that goes. :) and I am FOR SURE, is one example of this.

    But what do you think boys if we step it up a notch or two. Use technology to our advantage. Do any of you own a GOPRO. (if not, look it up) ;) Well, turns out my son owns one (bought him one for xmas last year). HD recording at high speeds. Even NASCAR uses these to capture videos plus SOUNDS. You see them more and more on racing cars. More to come on this one but I will leave the rest to your imagination.

    Cheers boys! Long live GM
  • almost one year and my transmission has not "learned" how to shift.
    you suck GM.
  • chuck1chuck1 Posts: 1,405
    Thanks for letting us know about your 1 year anniversary.
  • one year of disappointment.
    you suck GM.
  • We're a year and a half down the road. New serpentine belt did the trick back in 2010.
    Quiet as can be.
  • ceb66ceb66 Posts: 70
    edited October 2011
    el hoppy,

    I'm at six months and in the same boat. I'm disappointed with GM but I'm not going to stop telling them to correct the multiple problems I paid for and I've experienced since the truck was new. I'm using a different Dealer than the one I purchased the truck from. The selling Dealer twists words and regurgitates the corporate playbook. Was in the other Dealer yesterday morning trying to get a pulling issue resolved. They're very professional but still no luck! That's my seventh trip to a Dealer in six months. I'm 45. I haven't been in a Dealer seven times (for MX/repair issues) in my life prior to this thing!


    Bangs at the universal and rear end

    Pulls right

    Clunks severly

    Transmission intermitantly slips

    Headliner has started to rattle

    A/C cycles on and off

    el hoppy, Don't give up.
  • Got a '99 chevy silverado 4.8L,,piece of junk. Transmission clunks just before you come to a stop. Hesitates on acceleration from low speeds and around corners. The front end is a complete joke,,pulls to the right even after a so called "alignment". Front end shakes like an earthquake at speeds over 60mph. Just had a belt put on and after it rains,,the damn thing squeals like a pig. My next truck will be a Nissan Titan,,screw GM.!! :mad:
  • obyoneobyone Posts: 8,054
    OMG!! You lived with those problems for 12 years? There is a fix for the vibration over 60 which calls for a replacement rack that is welded to the frame. The rack you have now floats and causes vibration over 60, well actually it starts at about 45 mph. If the year was 2000 it would've been fixed under warranty.

    If you didn't change the belt tensioner when replacing the belt, that would be the cause of having to listen to miss piggy every rainy day.

    While the Titan is a good truck its design is rather aged considering you can't tell the difference between a 2004 and a 2012 model.
  • Bangs at the universal and rear end -they all do that. While it is irritating, it doesn't affect reliability.

    Clunks severly - A feature of the powertrain as well. A lighter foot on the throttle will minimize the clunk. It doesn't clunk all the time.

    If your so unhappy that your posting here (and other places as well) I would make payments until your at an equity position then buy something that you don;t have to spend so much time complaining about and to make yourself happy.
  • Yes. The clunking and lag is acceptable in GMC's views. They won't do anything about it. Although everyone knows that a clunking noise will in the long term cause damage. The shop supervisor printed off a bulletin off the GMC internal website. They actually list the clunking and lag problems. GMC states not to fix these as they are acceptable.

    sad to say but were stuck with it. Cheers
  • lstriplstrip Posts: 42
    Leave to chuck to defend gm on this board.
    "earning his salary"
    Chuck, your definition of "reliability" is obviously the same as
    the corporation. " operating as designed"
    My truck is not reliable. Yes, it gets me from point A to point
    B. however it never operates consistantly and I did not buy
    this truck to just get me to the store. I never know what to
    expect from minute to minute. It bangs and clunks.
    And the searching for gears is so irritating.
    You respond that the severe clunking is a "feature" as if that is how it should
    operate. That is BS.
    I drive very conservatively with a light foot
    and it does not help. GM knows there are issues
    with this truck but, refuses to accept responsibility.
    Your defense of GM on this issue is baffling.
    Your continued response of "if you don't like
    it trade it" does not create loyal customers.
  • OK, I have been watching this subject for the past few months. I found it while trying to do a little self-diagnosis after being turned away three times by the dealership. They were very polite in the way they shewed me away though...if thats good for anything.

    I have the same issues on my 2009 Sierra that many folks here have been claiming. Intermitent clunky harsh shifts. These poor shifts occur at 1-2 shifts in parking lots and at ~45 mph. Unfortunitly, most of my driving seems to be right at that 45 mph speed. So, during my driving I am constantly jostled by that in/out of gear feeling.

    I had a 2008 Silverado /w a 5.3L 4spd prior to this vehicle, and it performed flawlessly. As a matter of fact, I have never had an issue like this in my couple of dozen past GM vehicles. But this particular transmission shifts like crap. I'm not sure why, I'm not sure how, but it appears that many of them have these issues.

    I am extremely disappointed in how my transmission opperates. Will it hold up? maybe. Will my universals take a beating from it...most definatly.

    This lone issue has caused me to hate this truck. I hate every minute I have to drive it and I will dump it as soon as I possible. And by the way, I don't need lip sevice from that chuck guy who appears to live on this page. He has proven over these many pages that he is ignorant on the subject and his input here will do nothing more then infuriate loyal GM customers like myself.
  • gmcustsvcgmcustsvc Posts: 4,251

    I’m sorry that you’re experiencing such frustration with your Sierra because of the transmission concern you described. Can we please learn more so we can try to assist you in getting this concern resolved? Email us with your name, VIN, contact information, and the name of your involved dealership.

    GM Customer Service
  • the way GM customer service ignores its problems with its inferior product is shameful.

    I have one years worth of complaining to GM about my truck I bought new and GM NO service refuses to help, or even acknowledge the issue.

  • If I had as much frustration as some of you on this board the minute I hit an equity position on the loan I would sell it/ trade it and move on.

    Go buy a Toyota - it will give you some revenge.
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