Vibration
Thread Starter
Teching In
Joined: Jan 2009
Posts: 13
Likes: 0
Vibration Question for you guys. I just had my wheels balanced. I have done the motor mount flip. But even before i did that I had a vibration in the wheel. It usually happens when you first start driving the car for a couple of miles after it has sat for a while. it seems to go away after a few miles. I was wondering what is causing this vibration. The wheels are all balanced and the car only has 18000 miles on it. Any ideas?
Ok, go to your car, open the drivers door, pull the hood latch, go to the front of the car, open the hood. Look real hard at the engine, if it is sideways, you found your vibration!! Ha Ha Ha.
Just kidding!!
It is verry possible that its your tires, Go to a deadership, and tell them what its doing, They should cover it under warranty...
My tires will vibrate their *** off for a few miles in the morning then it goes away...
Just kidding!!
It is verry possible that its your tires, Go to a deadership, and tell them what its doing, They should cover it under warranty...
My tires will vibrate their *** off for a few miles in the morning then it goes away...
Thread Starter
Teching In
Joined: Jan 2009
Posts: 13
Likes: 0
Vibration not tires I didn't think it was tires. Especially after I had just gotten them balanced. Also, if it were tires, it would be a constant, not just for a few miles and then gone. The engine is questionable in my mind as well. If it were the mount or something, the vibration would have changed when I flipped the mount. But nothing. Same vibration. Sometimes, its barely there, and then at other times its vibrating like a mother-f$#er.
No it has to do with DOD engaging when decelerating, the car goes into 4cyl mode and the vibration comes from the cylinders disengaging and the engine running unbalanced in 4cyl mode. Once you are stopped, it goes back to v8 mode. Very frustrating, just get a tune that removes DoD.
TECH Enthusiast
Joined: Nov 2008
Posts: 622
Likes: 1
No, not DOD cause it does not even engage until it is warmed up to operating temp.
Just put it in 3rd the next time and see, the DoD does not work in 3rd at all.
SERIOUSLY get your brakes lubricated, sliders/pins on all four corners and re-lube them with every tire rotation.
Just put it in 3rd the next time and see, the DoD does not work in 3rd at all.
SERIOUSLY get your brakes lubricated, sliders/pins on all four corners and re-lube them with every tire rotation.
Trending Topics
Teching In
Joined: Apr 2007
Posts: 47
Likes: 0
If you don't drive the car much, it is possible that the tires became a little flat-spotted on the bottom. After a little driving the flat-spotting goes away and the car remains smooth. That's my guess; I unfortunately had Kumho tires on a past Corvette and those tires flat-spotted really, really bad. Even after sitting for only a week or so. But yeah, as Ill Born SS stated, make sure the caliper pins are getting lubricated also. Good luck.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever
Verdad Gallardo
I remember a couple members having issues with plain old faulty tires that would do this. One had the dealer replace them and it went away. It took MANY service visits to get the tires replaced, but in the end it happened. You'd need to leave it there overnight, meet them in the AM, and then take them on a test drive to show them.
TECH Apprentice
Joined: Feb 2008
Posts: 312
Likes: 0
From: Waterloo, Illinois
Mine kinda has this same issue if it sets for a few days. My theory is that since the weight of the car is on same part of the tire, it creates a "flat" spot. After you drive it for a few miles, the "flat" spot is worked out.
mine does the same thing. not when i slow down, just the first 1/8 of a mile or so during the first drive of the day. my issue is definitely the tires and it sounds like you might be experiencing the same thing.
