Shake or Vibration Issues

[rotten tomato]

Well I finally fixed my vibration problem. I got sick of dealing with GM and the dealership and I couldn't stand driving it on the highway. So, I went and bought a 2015 Ford F150. I can say the interior of the GM is nicer, but the ride and drive, Ford has it. I also got the Ecoboost 3.5 and it is quick. I think it is quicker than my GM and My GM had 6.2L with 3.37 rear end. So far I think I made the right choice.

[Chuck203]

I'm about to do the same. I'll get the 5.0 though.

 

 

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[Almoalla6997]

To the case of this vibration I would like to describe my vibration issue and how it is bieng resolved.

 

First the car is a regular cab 1500 sierra

 

The vibration starts at 120+ KM/h

When I set the car on cruise I feel body vibration, where i can see and feel the dash, and seats shaking plus anything in the centre console.

Took it to the dealer a couple of days back.

Today I got a full report on what has been done to my truck.

They started off checking engine mounts, gear mounts, front rear drive shfts, all shocks, front arms,

They checked if their was any misfiring, however non of this was on my truck.

They decided to make sure my wheels were properly balanced.

After the check it turned out that two tires needed to get changed due to many flat spots.

They threw these two tires to the back and keeping the two properly balanced tires upfront till the new tires arrive which could take 15 days.

I could tell you that with the road force balancer and the best they could do to balance the set of wheels, 90% of the vibration is gone. I drove around 60 KM today at the speed of 135 KM/h and could really feel the difference.

Therefore goodyear eagle tires are just not of that high quality, my friend is using them on a ford edge and is having the same issue, his car used to drive smooth till ge changed them with these set of tires.

Moreover the vibration at idling is said to be because the engine is running at both v4 and v8 and cant keep its mind at one. This is AFM as the mechanic told. So I gave a call to one of my friends who tuned his car to only run V8. And the idling vibration is well decreased.

Hope this helps and just take it easy reduce your tension and just hope its something silly.

[14SLTZ71]

To the case of this vibration I would like to describe my vibration issue and how it is bieng resolved.

First the car is a regular cab 1500 sierra

The vibration starts at 120+ KM/h

When I set the car on cruise I feel body vibration, where i can see and feel the dash, and seats shaking plus anything in the centre console.

Took it to the dealer a couple of days back.

Today I got a full report on what has been done to my truck.

They started off checking engine mounts, gear mounts, front rear drive shfts, all shocks, front arms,

They checked if their was any misfiring, however non of this was on my truck.

They decided to make sure my wheels were properly balanced.

After the check it turned out that two tires needed to get changed due to many flat spots.

They threw these two tires to the back and keeping the two properly balanced tires upfront till the new tires arrive which could take 15 days.

I could tell you that with the road force balancer and the best they could do to balance the set of wheels, 90% of the vibration is gone. I drove around 60 KM today at the speed of 135 KM/h and could really feel the difference.

Therefore goodyear eagle tires are just not of that high quality, my friend is using them on a ford edge and is having the same issue, his car used to drive smooth till ge changed them with these set of tires.

Moreover the vibration at idling is said to be because the engine is running at both v4 and v8 and cant keep its mind at one. This is AFM as the mechanic told. So I gave a call to one of my friends who tuned his car to only run V8. And the idling vibration is well decreased.

Hope this helps and just take it easy reduce your tension and just hope its something silly.

For the vibration at idle you probably need the 3mm right side motor mount shim.

Edit: As for AFM, it does not put the motor in V4 mode while its idling.

Edited May 11, 2015 by 14LTZZ71

[FormerFordGuy]

The vibe is really starting to rear it's ugly head on my Silverado CC standard bed at 15,000 miles. I have aftermarket wheels/tires and a leveling kit so I'm probably f$&@ed. I was really enjoying my first GM product too...

[pm26]

Therefore goodyear eagle tires are just not of that high quality, my friend is using them on a ford edge and is having the same issue, his car used to drive smooth till ge changed them with these set of tires.

 

 

I had a set of OEM Goodyear Eagles on my '09 Impala LTZ and never had any vibration or flatspotting problems. Of course these tires were Z rated for speeds of up to 168 MPH, so there is no comparison to a SUV or truck tire that's just S rated for up to 110 MPH speeds.

[Newm]

Well it pains me to say that even after new tires the vibe is starting to come back...I really don't understand why or how but anymore I don't care. I am just about done with all this and going to cut bait and move on. I almost pulled the trigger on a Tundra TRD Pro Saturday but keep holding on in hopes of a fix. Dealer says it's tires and it might be but not sure why this truck is so finicky and I have to RF balance my tires every couple thousand miles but I am done!

[1997SierraSLT]

Assuming the truck does not vibrate itself apart at 40K to 50K when the tires are shot and due for replacement, what is the consumer to do if they want to go down to their local Costco or some other tire shop for a replacement? Somehow I don't think the tire shops will swap out tires and perform numerous attempts to balance tires free of charge because the these trucks continue to experience vibration issues.

[FormerFordGuy]

Assuming the truck does not vibrate itself apart at 40K to 50K when the tires are shot and due for replacement, what is the consumer to do if they want to go down to their local Costco or some other tire shop for a replacement? Somehow I don't think the tire shops will swap out tires and perform numerous attempts to balance tires free of charge because the these trucks continue to experience vibration issues.

After reading every post in this thread, I don't think it's a tire problem.

[hotrodz37]

After reading every post in this thread, I don't think it's a tire problem.

Definitely not a tire problem. I have Toyos that road force less than 9lbs and my truck shakes like Michael j fox (sorry if I offended anyone). My 2013 Sierra got bought back for similar issues and I was able to get into a new 2014 Sierra and this one now shakes too. I am going to be visiting the Ford lot this week. I know the grass isn't always greener but it's gotta be a little better.

 

 

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[1997SierraSLT]

after reading through 300+ pages, I also agree it's not solely a tire problem. I'd still lean towards the resonant frequency of structure coinciding with vehicle speed or perhaps torsional/lateral vibration issues developing within the powertrain.

[jcronin83]

So my 2015 has been at the dealership with a bad vibration while sitting still and in gear. I have a case with gm and my dealership. Has been in the shop longer than I have had. Haven't even made first payment yet and has been at dealership for almost 30 days. With the answer to my questions 'we don't know what's wrong' any advice guys.

[FormerFordGuy]

Definitely not a tire problem. I have Toyos that road force less than 9lbs and my truck shakes like Michael j fox (sorry if I offended anyone). My 2013 Sierra got bought back for similar issues and I was able to get into a new 2014 Sierra and this one now shakes too. I am going to be visiting the Ford lot this week. I know the grass isn't always greener but it's gotta be a little better.

 

 

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I have BFGs with good quality aftermarket wheels and I get the vibe at the exact same speeds as with the OEM wheels/tires. NO WAY it's tires. Good luck with the Ford.

[hotrodz37]

I have BFGs with good quality aftermarket wheels and I get the vibe at the exact same speeds as with the OEM wheels/tires. NO WAY it's tires. Good luck with the Ford.

Appreciate it! I am not certain I am going to go the Ford route as I do love almost everything about the Sierra minus the shake. What made you switch from the Ford to a GM product if I may ask?

 

 

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[Wrench589]

After reading every post in this thread, I don't think it's a tire problem.

I believe there have been a couple of cases of the vibration being solved by installing a complete new rear end, housing and all. I suspect that is the real problem, not tires. Exactly what, I'm not sure. But, I bought a digital electronic level and I am going to check the u-joint angles myself to see if they are right. My dealer said they checked them, but I don't trust anyone anymore so will do it myself. As soon as I get a free minute.