Shake or Vibration Issues

Sir Dan · March 11, 2020

If the truck had been sitting for days before your test drive, it could just be tire flat spotting. Take the truck for an extended test drive and if still shaking after tire balance. Run, don't walk from the truck.

Rmiles2314 · March 11, 2020

12 hours ago, Severado said:

Run away and don't look back.

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I agree. I LOVED my 2016, it was beautiful inside and out. But, after 50k miles it got so bad that it made me worry for future safety and I upgraded to the new 2019. They're beautiful trucks, I miss mine, but don't miss the worry and the shake!

Willyone · March 11, 2020

"Run away" might be good advice, ya just never know. Sometimes my '16 Silverado with only about 30K miles on it will be smooth riding on the highway at 70-75 for 20 minutes or more. Then the vibes will start. Then sometimes it will vibrate as soon as I get on the highway. Stealer man says the truck is fine, normal LOL.

I'll say this, if I were in the market for a used truck I would not by a 2014 - 2018 GM. Too many are jinxed.

6.2_GMC_DEN · March 11, 2020

Great video about vibration correction.

flyingfool · March 12, 2020

I would be cautious , but its a good bargaining leverage tool if its an 8 speed. I have a 2016 with no vibes and Its got the 6 speed which seems to be the most reliable and oldest trans design.

since most 8 speeds need new torque converters , i would bet this is the main source of driveline vibration and NOT out of balanced tires or drive shafts, its the Bad TC , tell him to take $2000 off the price and take it to a good trans shop

Edited March 12, 2020 by flyingfool

Willyone · March 12, 2020

My 2016 Viberado has the 6 speed.

flyingfool · March 13, 2020

GM engineered it for your pleasure! good vibrations!

Willyone · March 13, 2020

HA!! No doubt (o:

Bikemobile · March 13, 2020

I just put Falken Wildpeak AT’s on and they balanced way better than my duratracs ever would. I also had the new trans fluid put in my 8 speed for free from the dealer. This truck is the smoothest it has ever been.

flyingfool · March 17, 2020

i still think the Torque converters are causing all the vibrations in these trucks, I wonder if the new body style still gets vibration complaints, if not check the part numbers for the new model years torque converter, I bet it's been updated..

I dont believe the wheels, tires axles or drive shafts are out of balance. GM knows more but doesnt want to say cause the cost to fix an updated torque converter would be huge across all the K2xx trucks

Willyone · March 17, 2020

1 hour ago, flyingfool said:

i still think the Torque converters are causing all the vibrations in these trucks, I wonder if the new body style still gets vibration complaints, if not check the part numbers for the new model years torque converter, I bet it's been updated..

I dont believe the wheels, tires axles or drive shafts are out of balance. GM knows more but doesnt want to say cause the cost to fix an updated torque converter would be huge across all the K2xx trucks

I agree. I'm sure GMs army of engineers know what causes the shakes and like you believe the cost to correct the problem is why GM is thumbing their nose at us/those with shakers. Great way to do business... fuk yer customers...

As far as comfort, I have my seat and steering wheel dialed in pretty well and it's nice'n comfy (other than the shake). The one thing that does bug me though is the damn black cloth upholstery in the Silverado. That's all I've seen, unless you upgrade to a truck with leather. That trim level wasn't in my budget when I bought my '16 and likely will not be in the future. In fact, GM might not be in my future due to their shitty attitude towards the customer.

flyingfool · March 17, 2020

i'll look up the part numbers for the new 1500 T1 truck and see if it's been updated

flyingfool · March 17, 2020

for a 2016 truck with the 6 speed I'm seeing 3 different model torque converters. i looked up 2019-2020 and no torque converters are listed

https://www.gmpartsonline.net/search?search_str=torque+converter

Edited March 17, 2020 by flyingfool

calane29 · May 14, 2020

I don’t have time to read all 842 pages on this thread. But I have an 18 5.3, 8 speed that only vibrates while towing my trailer, at around 74-78mph. Should I take it to the dealer or just deal with it? Only reason I’m hesitant to take it to the dealer is bc I’m hauling with it pretty frequently right now

Severado · May 14, 2020

I don’t have time to read all 842 pages on this thread. But I have an 18 5.3, 8 speed that only vibrates while towing my trailer, at around 74-78mph. Should I take it to the dealer or just deal with it? Only reason I’m hesitant to take it to the dealer is bc I’m hauling with it pretty frequently right now

If that's the only time you have noticable vibrations, congrats ... you don't have the shake. Have the dealer triple flush the transmission fluid and change the filter. Fill with Mobil One or whatever new fluid they have for it. My '15 had the shake. My '18 doesn't. Any vibes I experience now are tire and surface related. I'll address the tires in about 10k more miles and get the same transmission service I suggested to you shortly before/after.
My 2cents

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