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Posted (edited)

Sarasota

 

2015 Denali 3500 DRW, Michelin ltx, 4x4

Thanks,

 

I was wondering which dealer was it you were dealing with.

Edited by pm26
Posted

Thanks,

 

I was wondering which dealer was it you were dealing with.

Ah, sorry. Palm GMC in Punta Gorta.

 

2015 Denali 3500 DRW, Michelin ltx, 4x4

Posted

Saddly I have now developed the dreaded vibration that starts at exactly 20 mph and stops exactly at 30 mph . Doesn't vibrate at any other speed very strange . You can feel it in the steering wheel and gas peddle also a little on the floor Board . It feels like your on a pebbled street or rumble strip . Anyway I will be taking it in for service in the near future . Love this truck but the vibration is very annoying . Didnt really notice it for a while but now that I have I don't enjoy my truck as much . Freeway speeds are smooth but city driving is when I'm in and out of the vibrating mph . Accelerating you don't feel it but steady speed anywhere between 20 and 30 mph or stopping for a light it does it . Hope they have a fix : (

Posted

Ok, so this coming Monday will mark the 4th consecutive week that my brand new truck will have been in the service department. If they do not call this week, does that mean that I am eligible for the lemon law in the state of Tennessee? I heard somewhere that 30 days is the mark.

Posted

Ok, so this coming Monday will mark the 4th consecutive week that my brand new truck will have been in the service department.

Are they gold plating it?

  • Like 1
Posted

The dealership rebalanced my Goodyear SR-A tires 29 days since the last time they did it, at which time they replaced one that would not force balance below 15lbs. Well, they said they matched balanced one that was off, and the other three were only generating 4-6lbs of force. Now the truck vibrates more.

 

Time to go find a good tire shop...

Posted (edited)

The dealership rebalanced my Goodyear SR-A tires 29 days since the last time they did it, at which time they replaced one that would not force balance below 15lbs. Well, they said they matched balanced one that was off, and the other three were only generating 4-6lbs of force. Now the truck vibrates more.

 

Time to go find a good tire shop...

Maybe it is time to trade for a vibrating 2016 model? Are they out yet?

 

As I said several times before, road force variation, even if zero, does not guarantee good wheel balance. Proper wheel balancing does. So once again, measuring road force variation and correcting wheel imbalance are two different parameters. Hunter 9700 wheel balancer, first measures the road force variation (if that option is selected by the operator), then wheel imbalance. If the road force variation is excessive, the machine will flag it. Low force variation means the tire is very little out of round. It does not mean the wheel is properly balanced. If the machine is improperly calibrated or the wheel is incorrectly mounted, chances are they balanced the wheels wrong. Way wrong. Possibly they all are out by as much as 1 ounce. This will cause very unpleasant vibration at high speeds. I have seen this before. More than once.

 

Perhaps the main reason for a bad balancing job is selection of an improper size cone to center the wheel on the machine. If you use a cone that is too large and catches on the outer lip of the center hole, the wheel will not be properly centered. A combination of a proper fitting spring loaded cone on the inside of the wheel and a good quality wheel lug adapter on the outside of the wheel is the best way to mount a wheel on the machine.

Edited by pm26
Posted

Or maybe it's not a tire issue....

 

It vibrated after I first got it. They replaced a tire and forced balanced all 4. It no longer vibrated. Then a slight vibration came back around 55mph. They checked all four and messed with one. Now its worse than when it went in the day before.

 

So either we have a heck of a coincidence on something else coming into play, or they didn't do it right. My money is on the later based on the experience so far. Worst case scenario is I dump these crap Goodyears for Michelins and then rule out tires.

Posted

 

It vibrated after I first got it. They replaced a tire and forced balanced all 4. It no longer vibrated. Then a slight vibration came back around 55mph. They checked all four and messed with one. Now its worse than when it went in the day before.

 

So either we have a heck of a coincidence on something else coming into play, or they didn't do it right. My money is on the later based on the experience so far. Worst case scenario is I dump these crap Goodyears for Michelins and then rule out tires.

As you said, time to find a competent tire shop.

Posted

Hi reporting to what I believe is the correct thread for my issue:

 

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.

Posted

Has anyone looked at the transfer case? Driving along @60-65mph on a newly paved concrete tollway, going straight, I put the truck into 4 wheel drive "Auto" mode. The rumble strip vibration I have been struggling with suddenly gets much worse. When I disengage the 4 wheel "Auto" back to 2 wheel "Hi", after several miles it seems to dissipate back to a slight rumble strip vibration (felt in the steering wheel and pedal and slightly in the seat) especially at 40-50 mph.

Perhaps something in the front drive line is the source... Putting in 4 wheel "Hi" also has the same affect.. and I am going completely straight forward.

Posted

The dealership rebalanced my Goodyear SR-A tires 29 days since the last time they did it, at which time they replaced one that would not force balance below 15lbs. Well, they said they matched balanced one that was off, and the other three were only generating 4-6lbs of force. Now the truck vibrates more.

 

Time to go find a good tire shop...

As soon as i took those shitty azz tires off my truck its been smooth as can be. Ive got 12k on it and still ridin smooth. The other day i was coming home from BPS and i decided to take the highway to see if my vibration had came back... Nope, smooth all the way to 85. I'm not saying tires will fix everyones trucks, but im sure glad i didnt screw with the dealer on my 2nd go round

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