Vibration when accelerating

Tiny
KENNYB83
  • MEMBER
  • 2005 PONTIAC GRAND AM
  • V6
  • 74,000 MILES
Okay. So, about a week ago while starting to drive and when I pick up speed it feels like my tire is wobbly or like I'm constantly running over something small. I checked my tires but I find no eggs no indentions or anything of the sort, nothing seems loose, but it's not a balance issue. Looking to see what would cause this and what I would need to replace to fix this please.
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Wednesday, March 30th, 2022 AT 11:53 AM

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Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
If this only happens when you are accelerating, then we need to suspect this is a tire issue or a possible runout issue.

So, let's start with this guide and the chart below to look at the tires for wear patterns. I understand that you looked for tread separation, but we need to see if they are wearing oddly.

https://www.2carpros.com/articles/how-car-tires-work

If they are then we need to address that. If not, we need to have them balanced as this sounds like a possible balance issue.

Is there a speed when this goes away? This sounds like a driveshaft issue but clearly this vehicle does not have a driveshaft, so we need to exhaust a tire issue.

Let's run through this and we can go from there.
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Thursday, March 31st, 2022 AT 4:04 PM
Tiny
KENNYB83
  • MEMBER
  • 2 POSTS
I had my boss check it out yesterday evening as I was worried, I was going to ruin something worse. It was a tire issue; the tire was defective after about 3,000 miles it had slipped a belt (honestly not sure what that means anyway) but I got new tires today and it helped it was only one tire, but I got a whole new set and seems fine for now. If it happens again, I'll update. Thank you for your time and detailed info.
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Thursday, March 31st, 2022 AT 4:11 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
That is great info. It did sound like a tire so I am so glad that you found it.

Please let us know if you need other help in the future.

Thanks
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Thursday, March 31st, 2022 AT 6:14 PM

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