Shake or Vibration Issues

[Pinnacle]

I just had a wild idea. Does anyone here have access to a dyno machine? Put the truck on it, take it up to speed and see if the vibration persists, then try it in 4 wheel drive. Id be easier to get a camera under there with the truck on a dyno.

[lineman12345678]

My 2014 GMC Sierra SLT shakes/vibrates when I tow my travel trailer. It has done it since new when I took it out with only 150 miles on the truck. If I ease into the throttle you don't notice it but if your start from a dead stop and hammer the throttle it will shake through the firs few gears. Other then that issue I don't notice a shake any other time. I am hooking up my 27' travel trailer in the morning and have an appointment with my dealer to check it out. It is definitely something related to the power train. If I never towed I wouldn't have know about the issue. I let you know what they say.

[2strokesmoke]

Well, after my buy back of my 2014 c/cab sierra all terrain I bought a Ram eco diesel truck.

My ram is at the dealer for a small paint defect repair, and they rented me a vehicle which happened to be a 2014 suburban which has a shudder and moan, and slight vibration at 40mph-55mph like my truck had.

This suv has the 5.3L v4 fuel mangement and 6speed with 3.42 gears?

With out a doubt I am convinced this problem is the transmission torque converter or pump or the out put shaft bearings.

This is why GM not willing to admit there is an issue, while they quickly roll out their 8 speed trannys.

Just my humble tech opinion.

[14SLTZ71]

I just had a wild idea. Does anyone here have access to a dyno machine? Put the truck on it, take it up to speed and see if the vibration persists, then try it in 4 wheel drive. Id be easier to get a camera under there with the truck on a dyno.

Guys have mentioned this before but I'm not sure if anyone has actually tried to diagnose the vibration/shake on a Dyno.

[14SLTZ71]

Well, after my buy back of my 2014 c/cab sierra all terrain I bought a Ram eco diesel truck.

My ram is at the dealer for a small paint defect repair, and they rented me a vehicle which happened to be a 2014 suburban which has a shudder and moan, and slight vibration at 40mph-55mph like my truck had.

This suv has the 5.3L v4 fuel mangement and 6speed with 3.42 gears?

With out a doubt I am convinced this problem is the transmission torque converter or pump or the out put shaft bearings.

This is why GM not willing to admit there is an issue, while they quickly roll out their 8 speed trannys.

Just my humble tech opinion.

I haven't seen any 2015 6.2L 8 speeds available for purchase but there's definetly a lot of 2015 5.3L 6 speeds with 3.42. So their not rolling them out that quick.

If you go to carsforsale.com you can view almost every new vehicle on any lot in the US.

 

Edit: I also believe it to be the transmission in many of these trucks.

Edited October 21, 2014 by 15LTZZ71

[taf2179]

I just took my sierra in today to the dealer for the vibration problem,just got it back from dealer last week for the same problem plus a few other issues. I went for a ride with service manager and got about 3 blocks away from the dealership and he said ok thats good enough take it back to the dealership. My truck was built 7/13 so its an early build and you sure can tell after a five minute ride in it. Im gonna give the dealership one more chance to fix this vibrator with wheels then I will have to take this further.

[2strokesmoke]

I just took my sierra in today to the dealer for the vibration problem,just got it back from dealer last week for the same problem plus a few other issues. I went for a ride with service manager and got about 3 blocks away from the dealership and he said ok thats good enough take it back to the dealership. My truck was built 7/13 so its an early build and you sure can tell after a five minute ride in it. Im gonna give the dealership one more chance to fix this vibrator with wheels then I will have to take this further.

 

I hope they treat you proper, and make things right!

Keep all paper records each time, and keep a log book of notes of attempts to resolve your issue.

Good luck mine didn't get fixed no solution found bought back.

[taf2179]

I hope they treat you proper, and make things right!

Keep all paper records each time, and keep a log book of notes of attempts to resolve your issue.

Good luck mine didn't get fixed no solution found bought back.

I have 14k worth of dealer installed up grades on my truck so they need to fix it. Im not gonna lose my a** cause they cant figure out what the problem is.

[lineman12345678]

So the technician said there is defiantly an issue and he is talking to GM engineers before proceeding. He thinks it has something to do with axle wrap, the driveline or the rear end. It only shakes when I have a load on it and accelerate hard through first and second gear.

[MudMutt]

I picked up a 2014 silverado custom sport last month. 5.3 L - 3.42 rear. It came with polished 20s and Continental Crossconnect eco plus tires. After about 500 miles I notice a vibe in the steering at around 75 mph. Not real bad but it's there. Also cruising around local I sometimes get a vibe in the steering but not always. Most of the time the truck feels smooth. I only have 1200 miles on the truck so I wanted to see if it get worse or better. Also, was wondering if any one else is running the Conti's and if your getting any vibration with them.

[pm26]

I picked up a 2014 silverado custom sport last month. 5.3 L - 3.42 rear. It came with polished 20s and Continental Crossconnect eco plus tires. After about 500 miles I notice a vibe in the steering at around 75 mph. Not real bad but it's there. Also cruising around local I sometimes get a vibe in the steering but not always. Most of the time the truck feels smooth. I only have 1200 miles on the truck so I wanted to see if it get worse or better. Also, was wondering if any one else is running the Conti's and if your getting any vibration with them.

What the heck are "Eco plus" tires? Low rolling resistance or something? Somewhat of an oxymoron with heavy 20 inch diameter rims.

[Nargg]

Reading all of this (not really, but I did read a lot) reminds me of a 2000 Silverado I had once. Took me almost a year to get the dealership to replace tires on it. Shaked like the dickens at highway speeds. Turns out it had 3 out of round tires on it. 3!!!! Goodyears.... The first time they finally replaced, they did with Goodyears, and it still shook. Then I got firestones (off brand named versions) and it drove like a dream from then on.

Edited October 22, 2014 by Nargg

[Kent2500]

I have 14k worth of dealer installed up grades on my truck so they need to fix it. Im not gonna lose my a** cause they cant figure out what the problem is.

 

I assume "they" is the dealer as GM is not responsible for non-OEM modifications (even if done by an independent dealer).

[Jay700]

I love the looks on my truck just hate driving on the freeway. Should have not bought it.

[keakar]

I have 14k worth of dealer installed up grades on my truck so they need to fix it. Im not gonna lose my a** cause they cant figure out what the problem is.

right before your arbitration hearing they will call you and offer a full purchase value trade-in credit towards another truck and you pay any additional cost if its a higher price.

 

at that time you can make a deal for them to transfer all your upgrades to the new truck and I would "assume" they will absorb the labor cost but then maybe not and you will have to pay the labor but that's still a decent deal.

 

short of that its up to you to remove everything yourself and then sell it or buy another truck you can use them on.

 

you are not going to get a penny more from GM then the cost of the truck the way you bought it in stock condition, consider the rest lost money unless you can remove it without leaving any damage to the truck from removing it because scratches and holes and anything else will all be depreciated at full retail body shop repair prices.

Edited October 22, 2014 by keakar