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Chevy Silverado and GMC Sierra Transmission Problems

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Comments

  • hotrodjim5054hotrodjim5054 Member Posts: 1
    I have a new 2011 gmc and am / was having the same problem. It slamed into gear and had a very hard time down shifting. To the point that today while going 40 I had to stop quick and did not. As I tried to stop the trans would not down shift and when it did and I swevered the truck lunged forward causing me crash. Has anyone else had this happen?
  • chuck1chuck1 Member Posts: 1,405
    So - the transmission did not downshift? And after it downshifted the truck lunged forward? Did you put your foot on the brakes? Did the ABS act correctly? What were the RPMs of the motor at this point? You had a "runaway truck?" What did you hit?

    Where did this happen?

    Please tell us more details.
  • gmcustsvcgmcustsvc Member Posts: 4,252
    hotrodjim5054,
    Can you please email me with your complete contact information, VIN, current mileage, and involved dealer? I apologize for your frustrations and concerns. I look forward to your reply. Have a great weekend.
    Christina
    GM Customer Service
  • seacat56seacat56 Member Posts: 5
    Christina @ GM customer service is only gonna give you lip service, and not the kind you'd like. GM is ripping off their customer base and they don't care. They got their bailout... i'm going to purchase Ford next go around..F GM!

    I have a continual problem with flexplate failure, and GM claims 'poor maintenance'. If I'm supposed to drop the tranny at every oil change just to inspect the flexplate, put it in the damn owners manual!
  • seacat56seacat56 Member Posts: 5
    The mechanic told me GM changed part #'s on flexplates...something was wrong from the get go. I'm a quality control inspector for aerospace components, and you don't change part #'s unless there is an engineering change...ISO 9001
  • el_hoppyel_hoppy Member Posts: 43
    after my 4th visit to my original sales dealership with the same transmission complaint , the service manager told me never to return.
    I am not kidding.
    during a visit to another dealership for an oil change I mentioned the transmission clunk to the service manager and he offered to replace the drive shaft yolk. he said he is aware of the problem and didn't try and tell me "its operating normal"
    its a lot better, not 100% but better.

    BTW, I have been in contact with GM customer service and they are absolutely NO HELP.

    3 more years of payments and when its paid off I am going to trade it in and buy a Ford or Dodge.
    you lost me as a customer GM.
  • chuck1919chuck1919 Member Posts: 176
    How is the part replaced different than what came with the truck? On a scale from 1 to 10 -How much better is it?

    Also, one assumes that if your going to keep the truck for another three years it must be reliable and take you where you want to go?
  • lstriplstrip Member Posts: 42
    you are unbelievable chuck.
    satisfaction with a product and the ability to "take you where you want to go" are vastly different. i can drive my old 2002 mazda if i just want to go somewhere.
    why do you insist on constantly trying to defend gm when we are all discussing valid concerns and issues with our trucks.
    why don't you try offering a little assistance rather than try to mute the discussion.
    larry
  • chuck1chuck1 Member Posts: 1,405
    edited September 2011
    I question how big a problem is when you take it to the dealer, the dealer fixes a part(and it performs better), and then someones says they are going to keep the vehicle for an extended amount of time.

    Mine clunks (occasionally as well). The power train is not refined as it should be. But the truck is also $4,000.00 to $5,000.00 less than the Ford. And my '2011 5.3 performed great in 116 degree heat and got 20mpg on a recent 900 mile road trip.

    Chevrolet and GMC sold over 50,000 trucks in August - good for them.
    Outsold the F-series by a few units.

    Also, I am ASKING what makes the replacement yolk DIFFERENT than what came with the truck. This I am asking for my own benefit as well as the benefit of others.
  • mloeckermloecker Member Posts: 26
    yah... Larry----- Chuck needs to crawl back under his rock- he is too out numbered here, besides; if all of us on this forum were happy with the damn GM pickups, we'd be doing more productive things I am sure. I am pretty sure I did not spend 40 THOUSAND DOLLARS to listen to ANY kind of clunks in my 2010 Silverado- Lesson learned fo me. As long as it goes forward when placed in D and reverse when placed in R, I am happy I guess because GM will never admit to any problems unless lives are lost due to quality issues-- take for example Toyota. Just sayin.
  • chuck1chuck1 Member Posts: 1,405
    edited September 2011
    Yep,
    It's approx. 13 owners to 1. They sold 50,000 trucks in August-clunk included.
  • ceb66ceb66 Member Posts: 70
    el hoppy,

    I haven't, and don't plan to make any (personal) derogatory remarks towards the dealer that sold me the truck or against GM. The service guy's hands are tied by GM management who in turn put pressure on the dealer through the District Specialist (DS). I sympathize with your frustration with the GM sales people and the customer service people. I've had the same experience.

    Been driving for almost 30 years. Had many GM "units" during that time. Didn't complain about one of them.

    The fact is, at 45 years old, I get disgusted and I’m insulted (like you) when the dealer's management staff and the District Specialist use identical verbiage/nomenclature; "operating as intended." OK, when the truck pulls right and the transmission slips “it’s operating as intended”? Yup, according to the DS it is. When my torque converter is replaced less than one week after delivery “it’s operating as intended”? Yup. When it makes a metallic slam “it’s operating as intended”? Yup…

    All these years of driving and I didn't realize my previous cars and trucks weren't operating as intended. They were supposed to slam (not clunk )/slip/pull right/growl in and out of 8-to-4 cylinder mode and continuously cycle the A/C on and off! I didn't know what I was missing.

    I should have listened to this site (Edmunds). They list the Silverado/Sierra as the number 4 consumer choice for trucks behind the Ford Ranger!

    Keep in mind this is one site. There are many more. The Escalade, Silverado and Avalanche owners are having similar issues.

    I’m very disappointed in the lack of quality, however, I can’t afford the 10% to 15% depreciation I’d have to eat if I traded this truck.

    Let's continue to try to get these issues resolved.
  • mloeckermloecker Member Posts: 26
    Chuck---- Ole Chucky... where are you to comment on this guy's statement.... it seems before GM will fix any "faulty" equipment they mfg- 100% of the vehicles they sell must incure issues.... I work for a mfg that had some issues with their whole house air filtration systems and the had less than 1 tenth of 1 percent failure and they said... ( 1 ) unit is more than we will stand for with issues and recalled everyone and fixed the darn things.... GM needs them all to fail or experience issues before things will change- F GM is right- they are a BS company... There Chucky--- let's see your comments- speak up. maybe you need to go to the Ford forums and kick em in the balls like u do us.
  • chuck1chuck1 Member Posts: 1,405
    edited September 2011
    "in and out of 8-to-4"

    The truck is designed to do this. It switches in to 4 cylinder mode anytime the throttle is 6% or less. It doesn't matter if you make a 1/4 mile trip to the corner store, a one mile trip, or a thousand mile trip.

    It sounds like if you didn't like this feature-you shouldn't have purchased the truck. However, it is the one feature you can basically turn off by putting the car in manual mode and selecting "5th".

    "clunk )/slip/pull right/growl" How often does the truck do this? Currently, how many miles are on the truck?
  • el_hoppyel_hoppy Member Posts: 43
    I have no idea how the 2nd yolk is different from the 1st.
    ask GM.

    so what your saying chuck is, GM's new motto should be,

    " it will clunk, but you'll save a buck "
  • chuck1chuck1 Member Posts: 1,405
    If you could find out how the second part is different it might will out some others on this board.
  • lstriplstrip Member Posts: 42
    Once again Chuck, why do you feel compelled to defend gm.
    Every problem someone describes, you try to minimize their issue.
    I can say I have no problem with the AFM 4 to 8 cyl transition and back.
    I thought this was my problem but, I have monitored this for thousands of miles. It is not noticeable at all on my truck.
    My issue is definitely the transmission. My understanding is that an aftermarket flash can provide better "feel" for this transmission.
    Why is GM not willing to provide this fix for its customers?
    Larry
  • ceb66ceb66 Member Posts: 70
    Hi Larry,

    From talking with GM, I doubt they'll "provide" anything to it's customers after the sale. I was sold a bill-of-goods.

    I can't even get my NEW truck aligned properly. I've been told everything from I may have a bad tire (Generals, Wow!) to it was treated improperly during shipping.

    In addition to the AFM and other issues, I've got transmison issues also. They seem to be related. My tranny issues are amplified by the AFM as it switches back and forth between cylinders. Especially 4 to 8. It lags, growls, lunges then intermitantly "bangs" as it "jumps" to 8 cylinders. It's really annoying.

    According to a friend that works for GM, they're well aware of the transmission and AFM issues.

    Does your truck knock/tap when you firt start it in the morning? My Ford didn't do that until it had alot of miles on it.
  • chuck1chuck1 Member Posts: 1,405
    My tranny issues are amplified by the AFM as it switches back and forth between cylinders.

    How does the tranny issues get amplified when the transmission doesn't downshift when the AFM comes on? Doesn't the AFM kick in with less throttle? If your going down the road- the AFM will kick in and depending on terrain the transmission will feel no need to shift. Then, at this point how does the truck behave?
  • chuck1chuck1 Member Posts: 1,405
    edited September 2011
    It amazes me how someone like "hotrodjim" (see [post 987) can say his truck made him have an accident. Yet, when you start asking questions the answers are not forth coming.

    It amazes me how others post that the AFM switches 50 to 60 times during a trip. GUESS WHAT? If the conditions are such it's what it was designed to do!!

    If your going to have a gripe fest, at least gripe about things that are legitimate, like a power train that may not be refined as we like it. Not unreliable mind you...just maybe not as refined.

    With all the concerns on this board...not one person has said the vehicle is unreliable. Most will not even admit how many miles are on their trucks.

    This speaks volumes. Now I will go back and crawl under that rock.
  • ceb66ceb66 Member 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.
  • mloeckermloecker Member Posts: 26
    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 Member 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 Member 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.

    Most of the Ford complaints reference older trucks. NOT BRAND NEW TRUCKS THAT REQUIRE TORQUE CONVERTER REPLACEMENT DUE TO SLIPPPING TRANSMISSIONS WHEN PULLING INTO TRAFFIC!

    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!
  • lstriplstrip Member Posts: 42
    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.
  • adeemadeem Member Posts: 7
    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.
  • chuck1919chuck1919 Member Posts: 176
    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 Member Posts: 4,252
    adeem,
    Thank you for your input; we'll forward this to the appropriate brand quality group.
    Christina
    GM Customer Service
  • peteputpeteput Member 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 Member 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?
  • peteputpeteput Member Posts: 10
    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.
    :surprise:

    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:

    Here is a VALID EXPERIENCE THAT CAN HAPPEN TO ANYONE
    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.

    OR

    I HAVE TO SUDDENLY STOP BECAUSE A MOOSE CROSSED THE ROAD AND I AM BATTLING AGAINST THE TRUCK TO STOP BECAUSE IT'S DOWNSHIFTING AND WORKING AGAINST ME TO STOP WHILE I AM SHOVING MY FOOT AGAINST THE BRAKE PEDAL THAT IS NOW TOUCHING THE MOTOR.

    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.
    GMC = GIVE ME CASH

    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.
  • peteputpeteput Member Posts: 10
    Got my truck back from the shop. GM just lost a loyal customer. :mad:
  • el_hoppyel_hoppy Member Posts: 43
    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 Member 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 Member 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
  • peteputpeteput Member Posts: 10
    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
  • el_hoppyel_hoppy Member Posts: 43
    almost one year and my transmission has not "learned" how to shift.
    you suck GM.
  • chuck1chuck1 Member Posts: 1,405
    Thanks for letting us know about your 1 year anniversary.
  • el_hoppyel_hoppy Member Posts: 43
    one year of disappointment.
    you suck GM.
  • 2doorpost2doorpost Member Posts: 74
    We're a year and a half down the road. New serpentine belt did the trick back in 2010.
    Quiet as can be.
  • ceb66ceb66 Member 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!

    Truck:

    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.
  • bradenmbradenm Member Posts: 1
    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 Member Posts: 7,841
    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.
  • chuck1919chuck1919 Member Posts: 176
    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.
  • peteputpeteput Member Posts: 10
    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 Member 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.
  • sierraz7onesierraz7one Member Posts: 2
    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 Member Posts: 4,252
    Sierraz7one,

    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.

    Thanks,
    Sarah
    GM Customer Service
  • el_hoppyel_hoppy Member Posts: 43
    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.

    I AM NOT SATISFIED,
    YOU SUCK GM.
  • chuck1919chuck1919 Member Posts: 176
    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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