Shake or Vibration Issues

[20SierraL8T24]

 

Talk about unlucky. Trust me I read all these problems before I picked mine up last week and just sorta said **** it, and am hoping for the best.

 

Believe me though, I am driving around just listening or feeling, waiting for things to go wrong. In hindsight, I probably should have just bought a different truck.

 

 

Again, hoping it works out for me.

Yea, I haven't been on the site lately but I've been extremely active in this thread. I would hose clamp or bolt the adaptive valve on your exhaust open to save you the headache of the squeaky exhaust.

[steelcity]

Several topics here and a tsb to fix.

I saw the results of the "fix" The lot boy that did the "fix" had undercoating all over the inside of the wheels plus gobs of the stuff on the white tri coat paint of a brand new silverado. No thanks.

[PMurray]

For those that had the vibration issues fixed with tires, what kind of vibration problems did you have?

 

For me, I feel I have multiple issues, because I have some constant low frequency vibrations that feel like small rumble strips at 50mph (I feel this is steering wheel, gas pedal, floor), then a more intense pulsing vibration that happens at 65-70 (mainly feel this in gas pedal only), and finally I have a vibration that literally shakes the truck back and forth where I notice my center console/cup holders shaking left/right when I am driving at 80-85.

 

Which vibration type did the tires fix?

You likely have a bad ring gear in the differential. I had the same exact symptoms from 40 to 50 mph (max. @ 45) and gear was way out of tolerances. GM replaced and I'm as smooth as silk since...

[51G'sPaperweight]

Sierra What's that I forgot what mine looks like. 21 days straight in the shop for the 40-50 mph steering wheel vibration, they have my rear diff apart waiting for parts that they think won't fix it. Then they say GM will let them replace rear diff if all else fails.

[pm26]

Sierra What's that I forgot what mine looks like. 21 days straight in the shop for the 40-50 mph steering wheel vibration, they have my rear diff apart waiting for parts that they think won't fix it. Then they say GM will let them replace rear diff if all else fails.

It is indeed ironic that a properly assembled differential will usually outlive the rest of the truck without any problems or symptoms. GM apparently started buying rear axle assemblies at some point from a vendor who took manufacturing out of the US and uses people who are poorly trained to assemble these components without any real quality control. The results speak for themselves.

 

You can go to a junkyard and buy an used rear axle assembly from an old late 80's or early 90's pickup truck and chances are it will work without any problems for many years to come.

Edited October 28, 2014 by pm26

[14silverado4.3]

Are the differentials and transmission the same for a 5.3 and 4.3?

[Silverado 6.2]

Are the differentials and transmission the same for a 5.3 and 4.3?

yes

[mafd2]

Except most 4.3's have a 3.23 differential and 3.23 isn't available with 5.3. My 5.3 doesn't have a shake and I have 3.42. When I was having service work on mine, they let me go kick around in a 4.3 with 3.23 and 31 miles on it. I have been keeping up with this thread so i wanted 2 give it a test. Right above 70 "voila". Shake and bake. This truck had Continental tires. My truck had GY (now has Bridgestone 22's. I'm still leaning towards the transmission with those who had rear ends and tires replaced and still have shakes.

[albe1234]

2014 Silverado 1500 LT with 5.3 and 3.42(?).

Bought with 13 miles. Have had to dealership about 4 times, Each time, a tire or two was replaced and road forced balanced. some tires were road forced 2 or 3 times. Had about 2k miles a few weeks ago, Some rims were also replaced. Dealer even replaced front shocks at that time. Took a 4k miles round trip to PA. Ran at 68 mph(sweet spot for "less" vibration) on cruise control so gas pedal foot would not go to "sleep" from vibration.

All of this on Continental tires.

Waiting for return call from dealership.

I cannot understand how a tire has to be road forced balanced multiple time in less than a few hundred miles!

I'm running out of patience!

Al

 

[JC84]

What if gm bought horrible balancing machine and this was the cause the whole time

[chevy2tuff2006]

yes

Actually no they aren't the same the 4.3 has the regular same 8.6" ring gear 10 bolt while the 5.3 has the 9.5" ring gear semi float 14" bolt behind it that the old vortec max truck had.

[Silverado 6.2]

Actually no they aren't the same the 4.3 has the regular same 8.6" ring gear 10 bolt while the 5.3 has the 9.5" ring gear semi float 14" bolt behind it that the old vortec max truck had.

My bad you are correct, 4.3 has 8.8, 5.3 has 9.5,

and the max trailering pack with 5.3 or 6.2 has 9.75 ring gear.

[14silverado4.3]

Do we have anyone here that feels slight vibrations in the steering wheel? It sure feels like a harmonic of some type. I can't imagine that I would get this much road feel from the steering.

[Silverado-Hareek]

Do we have anyone here that feels slight vibrations in the steering wheel? It sure feels like a harmonic of some type. I can't imagine that I would get this much road feel from the steering.

 

Yes me. And I can't pinpoint the cause. I suspect the tires are the problem. I noticed it mostly back in the spring and then it went away around June. Since then I haven't had any vibrations at all except for 2 specific instances driving to work in September. The fact that it comes and goes and seems to be related somewhat to the outside temperature has me leaning toward the tires. How long it sits without being driven is possibly affecting it too. The truck drives great otherwise when I don't feel the vibrations in the steering wheel.

 

I will add though in general, with the stiffer suspension on these trucks, I personally feel more of the road than I did in my 2007 Silverado and that's after driving 3 different 2014's that didn't have vibration issues. So while there are vibration problems that people are experiencing, I think the combination of the stiffer suspension and the electronic power steering together transmit road imperfections to the driver and passengers more than the GMT900's did.

 

You can see my truck specs below my avatar. I have Goodyear SR-A tires that came with the truck. As soon as they're ready to be replaced, I'm getting either Michelin AT2's or BFGoodrich T/A KO's.

Edited October 29, 2014 by Silverado-Hareek

[14silverado4.3]

Thanks Silverado-Hareek, I guess it may be inherent to the truck.. I had a 2007 Jeep Wrangler that did not transmit this much thru the steering wheel. The harmonic is constant and feels like it could put your hand to sleep after several hours. Do these things have steering dampers/shocks?