Jump to content

2017 Chevy Shake: possible fix?

16LT4
 Share

Recommended Posts

16LT4 Enthusiast

16LT4

Posted
Posted

So my lovely truck has started to exhibit horrid vibration issues, starting around 6000 miles. Checked the tires after the dealer rotated them and found them overinflated by 10 pounds, so I dropped them back to 35. Seemed to help, but not permanently. I put over 300 miles on it yesterday and the driveability became atrocious; I'd rather drive an unladen F450 with an aluminum flat bed than my truck. Before taking it to the dealer, I crawled under and discovered that I could shake the front driveshaft around in the transfer case, so coupled with the fact that using 4x4 is audibly louder and rougher than 2WD, either the forward output shaft bearing or something else internal to the transfer case is eating itself apart.

 

If you suffer from driveline vibrations, crawl under and give'er a good shake. You know its bad when you can SEE the shaft moving and not just feel it.

Resqu2 Enthusiast

Resqu2

Posted
Posted

Well I'm glad you got to enjoy 6000 shake free miles. I wasn't able to go over 60mph during my test drive two weeks ago and it's smooth as silk. The first weekend that I had it we hit the interstate and I really think it would shake itself apart if I drove it very much at the 70-72mph mark. A local dealer is going to force balance the tires when I get a bit over 500 miles on it. After all I have read I don't look for it to be fixed, hope I'm wrong though. Good luck with your issue.

16LT4 Enthusiast

16LT4

Posted
  • Author
Posted

Well I'm glad you got to enjoy 6000 shake free miles. I wasn't able to go over 60mph during my test drive two weeks ago and it's smooth as silk. The first weekend that I had it we hit the interstate and I really think it would shake itself apart if I drove it very much at the 70-72mph mark. A local dealer is going to force balance the tires when I get a bit over 500 miles on it. After all I have read I don't look for it to be fixed, hope I'm wrong though. Good luck with your issue.

Get under it and shake the prop shafts around, see what you find.

  • Like 1
CounterMeasure Enthusiast

CounterMeasure

Posted
Posted

A local dealer is going to force balance the tires when I get a bit over 500 miles on it.

 

Why wait? Requiring tires to wear in to road force balance is BS. Get them done by a good tire shop that's willing to take the time to find wheel and tire runout, set them, and balance them.

 

Once I put a good set of Michelin tires on my truck by a shop that does quality balance work, its super smooth to drive even at our legal speeds of "posted 85mph +10 more".

Resqu2 Enthusiast

Resqu2

Posted
Posted

Why wait? Requiring tires to wear in to road force balance is BS. Get them done by a good tire shop that's willing to take the time to find wheel and tire runout, set them, and balance them.

 

Once I put a good set of Michelin tires on my truck by a shop that does quality balance work, its super smooth to drive even at our legal speeds of "posted 85mph +10 more".

Well I totally agree with you but I'm going to jump through their hoops, get a paperwork trail started and see where this goes, I'm real close to 500 miles and it will go to the local dealer early next week, they admit they have seen the issue and want to fix it.

Orlando8 Enthusiast

Orlando8

Posted
Posted

So my lovely truck has started to exhibit horrid vibration issues, starting around 6000 miles. Checked the tires after the dealer rotated them and found them overinflated by 10 pounds, so I dropped them back to 35. Seemed to help, but not permanently. I put over 300 miles on it yesterday and the driveability became atrocious; I'd rather drive an unladen F450 with an aluminum flat bed than my truck. Before taking it to the dealer, I crawled under and discovered that I could shake the front driveshaft around in the transfer case, so coupled with the fact that using 4x4 is audibly louder and rougher than 2WD, either the forward output shaft bearing or something else internal to the transfer case is eating itself apart.

 

If you suffer from driveline vibrations, crawl under and give'er a good shake. You know its bad when you can SEE the shaft moving and not just feel it.

Keep us informed on the outcome

16LT4 Enthusiast

16LT4

Posted
  • Author
Posted

Verdict: dealer rebalanced all 4 tires (saying some were pretty far out... how they got that bad in only 6500 miles is a mystery to me, and why the vibration issues seemed to surface after their service, in which they reprogrammed withe transmission solenoid, overfilled the tires AND the engine crankcase), but insisted that the vibrations were within spec (as per the picometer) and that the play in the front driveshaft was also within spec (which sounds like GM has simply enlarged their "acceptable" range rather than address underlying issues). Truck is a little smoother, but not great.

 

Went to look at a Ram and the difference was night and day, so maybe Chevy is right, it is designed that way (designed to drive like crap). Was able to get $13k off the sticker, but only $31k trade for my truck (payoff is $34k), so it seems I'll be dealing with this POS for a while. My salesman at Chevy told me "funny you mention the shake, I had another customer come in right after you did for the same issues."

 

I've been a GM guy all my life (as far as domestics go), but this truck reminds me of every reason I hated my '99 GMC Sierra. I'd expected improvements in almost 20 years, but sadly no. When my '84 GMC rides smoother, it's definitely an issue. In the end, let the buyer beware... my 4000 mile trip this weekend in this POS should be real fun. I'm probably going to leave it in 4wd the entire way and blow the t-case out of the truck, to force them to address the issue. F*'em.

Resqu2 Enthusiast

Resqu2

Posted
Posted

Just got mine back from road force balancing, they didn't even bother with a before or after test drive but I hit interstate after that were done and it's smooth as silk, like it should be. They did say the tires were out of balance. We shall see if this last.

dasimmon Enthusiast

dasimmon

Posted
Posted

Just got mine back from road force balancing, they didn't even bother with a before or after test drive but I hit interstate after that were done and it's smooth as silk, like it should be. They did say the tires were out of balance. We shall see if this last.

hope it does!!

Podor Enthusiast

Podor

Posted
Posted (edited)

I know there are probably tons of threads out there about the chevy shake. I had a '14 that I put 45k on and didn't have any vibration issue. I did do an alignment and rotate and balance at about 6k at an independent shop and found out that the toe was out about 2.5 degrees on both sides, which is a significant amount. I'm not sure if by fixing the alignment and keeping the tire wear down prevented the issue, or I was fortunate enough to get a good truck. I recommend having a shop other than the dealer with a road force balancer balance the tires and do an alignment. The dealer I bought my truck couldn't diagnose their way out of a paper bag.

 

Is there any consistency in vehicles with the vibration, like tire and wheel combo, chassis length, 2 or 4 wheel drive? I haven't had mine for 2 years now so I don't remember much. It was a crew cab, 5.5 foot bed, 4x4 with stock z71 18' wheels.

Edited by Podor
  • 1 year later...
  • 11 months later...
Apache32Bravo Enthusiast

Apache32Bravo

Posted
Posted

New to this GM Trucks and new owner of a 2017 GMC Sierra 1500 SLT 4x4 with 30k miles on it. I have the shakes... At 68 - 77 mph you start feeling it. On a scale from 1 - 10, I'd give it about a 6. Still enough to piss me off. I called a shop today and instantly they knew of this issue and said to come in this Friday early morning and wait about 4 hrs. They would balance the driveshaft, make some adjustments and then take it to a tire shop across the street to force road balance the tires. 


So I can't wait for Friday to come any sooner and see if this fixes the issue. I'll keep you all updated on the progress Friday night as the drive home I will have plenty of room to stretch out on the highway. 

LSPowered65 Enthusiast

LSPowered65

Posted
Posted

So this thread is pretty depressing to read. I am the new owner of a 2018 Sierra Denali with a 6.2. Bought it new as a leftover with 300 miles on it 2 weeks agog  I have almost 600 on it and have made a laundry list of issues for the dealer to tackle. One of them being a significant vibration/shake at highway speeds and the front outer edge of the tires look like shit, you can feel the chop in them if you run your hand over them. Bridgestone A/T.  To get this much chop in less than 600 miles means the alignment has to be out pretty significantly. I traded in my 03 Sierra Crew quadrasteer that drove like a dream.....yes, second thoughts are upon me. I don’t drive the truck much, less than 5k a year but I shouldn’t be having these issues with a brand new $66k vehicle. I’ll keep you posted for dealer solutions to my list. I am open to ideas but I will start with alignment, rotation, tire balance for the vibration.

L86 All Terrain Senior Enthusiast

L86 All Terrain

Posted
Posted

The cure to vibrations in these trucks is to rebuild the back half of the entire truck and replace the Chinesium/Mexican parts for quality, in spec US made parts. Swap your drive shaft, axle shafts, pinion, brake rotors, leaf springs, shocks, and hubs and you might have a truck to stand on. Junk quality parts, poor quality control, and horrible warranty service. Their answer to this problem will always be "can not reproduce symptom" or "road force balance tires" because they know they made a piece of crap and GM wont spend the money to back it up. Screwing over customers and over-charging for your products, then not supporting the consumers when the problems surface is a quick way to bankruptcy and another taxpayer funded bailout. If we wanted vibrators we would have bought a Caterpillar compactor. 

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

  • Latest Articles

  • Posts

    • SFC Retired
      2023 DRW Wheel Liners

      By SFC Retired · Posted

      Did have to make 1 modification because of the WeatherTech rear mud flaps and that was needing 3 longer screws than what came with the install package. 😄
    • SFC Retired
      2023 DRW Wheel Liners

      By SFC Retired · Posted

      Picked up the liners yesterday. Installed passenger side WITHOUT any modifications. All mounting holes lined up perfectly. Rain is interfering today with drivers side. Very Happy! Will add pics when finished
    • KARNUT
      OCI, not when but why?

      By KARNUT · Posted

      As a matter of amusement I’ll leave this conversation with this. Do you beat the government average fuel estimate? Statistics are a guide to me. Not a rule. Someone once said I have to have the last word. If true and possible may be. I’ll blame that on working in a family business.
    • bluev8
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By bluev8 · Posted

      That is a fair point, and I agree that trying to log “everything in the truck” would be the wrong direction.   There are a lot of modules and a lot of traffic. If the product became a full-truck datalogger, the amount of data would get huge very quickly, and most owners would never use it.   I think the first useful version would need to be narrow: - powertrain-side event evidence - selected high-value parameters - communication / voltage / reset events - pre/post event window - short report first, raw log only as backup   One distinction I should make is between active OBD/PID polling and passive bus capture. If you are polling PIDs through OBD, then yes: the more parameters you request, the lower the effective sample rate becomes, and you are adding diagnostic traffic to a vehicle that is already busy running itself. With passive CAN capture, the recorder is not asking all the modules for data. It is listening to traffic that is already on the bus. So it does not consume vehicle bus bandwidth in the same way that a scan tool polling hundreds of PIDs would. But your point still applies in a different way.   Even if passive capture does not add bus traffic, the recorder still has limits: - processing rate - storage rate - timestamp accuracy - decoder workload - event filtering - report size - user attention span   So the answer cannot be “log everything and let the user figure it out.” The product would need to store enough raw evidence to be useful, but only decode, graph, and present the important parts around the event.   A practical report should probably show: - what triggered the capture - how much pre/post data was preserved - which selected parameters changed - how those values compared to baseline - whether the same pattern happened before - whether any voltage, reset, bus-off, lost-message, or communication fault occurred - selected graphs around the event - raw data only as supporting evidence   So I agree with you. More data is not automatically better. The real product is the reduction from raw data into a useful event report.
    • bluev8
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By bluev8 · Posted

      That makes sense, and I agree with most of that.   I think the product would need both: 1. a default powertrain template, so it is useful out of the box; 2. user-selected priority parameters, so the owner or shop can choose what they want to see first.   Different users are going to care about different things. One owner may care about oil pressure and voltage. Another may care about misfire trend, AFM/DFM behavior, or U-codes. A shop may want communication events and repeatability first. Your baseline point is probably the most important one. Raw data is not very useful unless the report can show what normal looked like for that vehicle under similar conditions.   The way I would think about it is: - start with a basic known-good baseline - learn normal behavior for that specific vehicle over time - allow the event to be overlaid against baseline - show whether the event was a one-time spike or a repeatable pattern - provide a simple severity level, but with clear limits on what that severity means   For example, early severity could be something like: - Info: event captured, no obvious abnormal pattern - Watch: value moved outside baseline, but not repeated - Warning: repeatable abnormal pattern under similar conditions - Critical: communication loss, voltage drop, bus-off, reset, or severe repeated event   I would not want the first version to say “replace this part.” That would be overclaiming unless there is repair-confirmed data behind it. It would be more honest to say “this pattern deserves inspection.”   On the OBD port question, I think OBD absolutely has a role. OBD is probably the right place for: - DTCs - freeze frame - VIN - calibration information - normal scan-tool parameters - Mode 6 / enhanced diagnostic data if available The reason I am still looking at an ECM-side recorder is that the failure may happen before anyone connects a scan tool. If the owner plugs in a scanner after the event, the pre-event evidence may already be gone unless the ECU happened to save it. So I do not see this as “OBD versus ECM-side.” I see it more like: - ECM-side recorder: always armed, rolling buffer, event evidence - OBD/DLC companion: DTCs, freeze frame, VIN, calibration, normal scan data - phone/cloud: status, notes, upload, report generation, notifications   I agree that phone connection and push notifications would be useful. I just would not want the phone or cloud connection to be required for capture. The recorder should save the event locally even if the phone is not connected. The phone should help with event marking, download, notes, upload, alerts, and report viewing.   For a default GM V8 event report, would this list make sense? - RPM - calculated load / MAP - throttle position - vehicle speed - gear / torque converter state if available - coolant temperature - oil pressure - oil temperature if available - battery voltage - commanded AFM/DFM state if available - actual AFM/DFM state if available - misfire counters / roughness by cylinder if available - fuel trims - relevant U-codes / communication events - bus-off / lost periodic message / module reset / voltage drop events Which of those would you remove, and what would you add?

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...