2007 Tahoe Vibration

[grebva3]

I get a vibration while driving between 45-60 mph. (1500-2000rpm) When I let off the gas pedal the vibration goes away. Tires have been rotated and balanced. When the transmission is in auto it shakes/vibrates more. Also if you down shift to 3rd it goes away. I took it to the Chevy dealership in enterprise Al. They replaced the rear u joint helped but not completely gone. I need ideas to give them because they tried to tell me it was the tires and they are brand new and I had them Rotated and balanced twice to ensure it was not this problem. Please any advice is appreciated.

 

[GM Customer Service]

I encourage you to take the advice of your dealer. Were the tires rotated and balanced at the dealer? Are they centered on the hub? Aftermarket tires?

Louis
GM Customer Service

 

[grebva3]

The tires and wheels are stock and the company that mounted and balanced the tires is Firestone. The tire manager walked me through the process and he definitely ruled out a tire issue. Thanks again for any assistance.

 

[iBizzy]

Dang Man I feel your pain. I have read on another sites when I was looking to buy new tires. And I read sum tire reviews not sure if it was Firestone, but they had the same problems your having. I heard sum tires are really hard to balance then others. The guy said they balance them 4 times before they replaced them. Try switching your tires and see if your problem still exist.

 

[wheatswake]

is it in V4 or V8 when it vibrates?

 

[grebva3]

IMHO yes I think so. I drove to grayton beach this weekend and when ever the Tahoe is in high gear 4/OD and I am maintaining speed but not downshifting the vibration occurs. (45-60 mph 1500-2000rpm). If I slow down or speed up it goes away but when I am at a consistent speed and then apply a little but of gas pedal you feel the shake. If I manually downshift or let off the gas the vibration goes away immediately. I am going to take it back to the dealer tomorrow. I wanted to be able to recreate the vibration incase they say they can't I know that I can show the service manager. I went and spoke with two different tire shops Goodyear & Firestone and they both told me my tires are fine. Thanks for any and all advice.

---------- Post added at 02:10 PM ---------- Previous post was at 01:33 PM ----------

I have been reading a lot of different forums and it seems others have had thi very issue I am having and the tires even when replaced were not the issue. I will keep doing research until I can figure the problem out and other advice is greatly appreciated.