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Vibration in Floorboard, Not Speed/Tire Related

TxTruckMan

By TxTruckMan
in Troubleshooting & Recalls

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14SLTZ71 Enthusiast

14SLTZ71

Posted
Posted

Any body figure this out yet? Starting to drive me nuts, mainly since mine is in the 40mph-50mph range which is what all the roads I drive are. I experimented with double stick tape and it didn't help. It also used to only be in my pedal and now its made its way to the floorboard.

 

Maybe try this; take the pedal off and slide rubber standoffs, spacers, or bushings onto the bolts so that they are between the pedal and its backing. The spacers need to be just thick enough to prevent the pedal from contacting the backing. Maybe 1/4" tall and 1/2" diameter. Made out of material that's pliable in colder temps.

Something similar to these.

http://www.fastenersplus.com/3-8-id-x-3-4-od-rubber-bushing-pkg-12.html

  • 2 weeks later...
  • Replies 95
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danh New Member

danh

Posted
Posted

From what I'm reading there is not much of a solution for the vibration problem. I have 2014 6.2l with the max trailering package as I tow a 8000lb toy hauler. Truck tows great but the vibration when towing is getting worse. I'm not sure if this is the same problem as mentioned in this thread but as you can imagine when towing you put a big load on the truck - this is making the vibration bad.

 

I've already brought the truck in three times to fix problems and with only 6000 miles on it I'm disappointed to have to bring it in another time.

  • 2 weeks later...
yurevn Enthusiast

yurevn

Posted
Posted

I installed an RX catch can yesterday on my 6.2L. Now I have a floor board/pedal vibration that was not there prior to installing the catch can. Nothing else has changed any ideas?

2007silveradonbs Enthusiast

2007silveradonbs

Posted
Posted

I too have this issue. It started a little bit here and there, and now does it every time the truck is running at 1100-1400 RPMs. It is driving me nuts. It actually got worse after I had the GM/Borla Exhaust installed. I have an appointment to take a service director for a ride on Friday.

hotrodz37 Senior Enthusiast

hotrodz37

Posted
Posted

I too have this issue. It started a little bit here and there, and now does it every time the truck is running at 1100-1400 RPMs. It is driving me nuts. It actually got worse after I had the GM/Borla Exhaust installed. I have an appointment to take a service director for a ride on Friday.

Let us know what you find out, mine is driving me bat shit crazy too but I know if I take it in I will get the standard "operating as designed"

 

 

Sent from my iPhone using Tapatalk

2007silveradonbs Enthusiast

2007silveradonbs

Posted
Posted

Let us know what you find out, mine is driving me bat shit crazy too but I know if I take it in I will get the standard "operating as normal"

 

 

Sent from my iPhone using Tapatalk

Less than 1000 miles on mine and only 3 weeks old....... I already had to bring it back to the dealer after they installed the exhaust because the driverside pipe could be moved up and down by hand. They are already not happy with me, and are trying blame it on the pipe without even seeing it.

  • 3 weeks later...
b00001 Enthusiast

b00001

Posted
Posted

^that is very common if you put the RX can on the brake booster...

I did not know this, thank you for the insight! Relocated my catch can, vibration gone.

Silverado-Hareek Senior Enthusiast

Silverado-Hareek

Posted
Posted

I did not know this, thank you for the insight! Relocated my catch can, vibration gone.

 

You relocated your RX? Where did you end up mounting it?

b00001 Enthusiast

b00001

Posted
Posted

 

You relocated your RX? Where did you end up mounting it?

Where the spare battery would go. There are a few ways to fabricate up a mount for that location.

Silverado-Hareek Senior Enthusiast

Silverado-Hareek

Posted
Posted

Where the spare battery would go. There are a few ways to fabricate up a mount for that location.

 

Gotcha so you made a new mount and did not use the one supplied with the RX can?

b00001 Enthusiast

b00001

Posted
Posted

 

Gotcha so you made a new mount and did not use the one supplied with the RX can?

Different can, but similar mount style. I used the bolting point that holds the top of the windshield washer fluid reservoir, longer bolt, with a spacer. Not my optimum mount but it will do until I can come up with a better solution. That being said, it is holding fine for now. I had to get rid of that vibration. Was killing an otherwise exceptional ride!

Moxie326 Enthusiast

Moxie326

Posted
Posted

Never knew I had a vibration problem until I drove 80 mph ( speed limit was 70 mph ),any one with vibration issues should try driving your truck in different situation to see if vibration change ,

grapedrinkesha Enthusiast

grapedrinkesha

Posted
Posted

I had a vibration that was noticeable all of the time and had what seemed like an exhaust drone as well. After 65 mph if I accelerated at all it was worse. I took it to the dealership and it ended up being the 4 wheel drive not fully disengaging. Problem is fixed and truck drives like its brand new again! Just thought I would share the experience.

  • 10 months later...
Willshire Enthusiast

Willshire

Posted
Posted

I was passing a vehicle yesterday and noticed from 80MPH -100MPH (it was a long line of cars lol) but it seemed to go away or lessen when i let off the pedal. Any ideas, gear, drive shaft, motor mounts. Any experience with fixes before i go to the dealer would be helpful. Thanks

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