99 contour vibrate at 65-70 mph


The tires were rotated from the back to the front. Now when the car is at 65 to 70mph it vibrates.

The current tires on the car have 30,000 miles on them, however the tire warranty is 60,000 tire.


On, and I forgot to add that the current tire thread depth is between 4/32 to 6/32


Have you Changed The fuel filter in the last 30,000?


What you have is irregular wear on the tires. Irregular wear is caused by misalignment and aggravated by insufficient inflation pressure and insufficient rotation practices (Obviously the problem here).

It is possible to wear a new pattern into the tires - erasing the old wear pattern that is causing the vibration. BUT that doesn’t work 100% of the time.

So live with it for a while and see if it gets better. If not, then there are only 2 things you can do - rotate the front tires back to the rear, or replace the tires.

BTW, the warranty does not cover this. What caused this was a fault of the vehicle and not a fault of the tire.


I did that when the tires were rotated




It could possibly be a tire balance issue. If they were out of balance on the rear it wouldn’t have been as noticeable. Balancing costs, maybe $10-12 a tire. But you really want to think about getting new tires, especially if you’re in an area that gets snow.