2002 Corolla S 146000 miles, shock 2 years old, tires Michelin wetherwise 2 years old.
When I hit 52 mph I have a vibration that mostly goes away after that speed and you can feel a slight vibration up to 75 mph.
What I have done is 3 tire balances, and rotation 4 times(2 different states with different SEARs as thats where I buy tires) Also, one alignment. Tire pressure makes no difference, yet I have changed from 28 to 35 psi. I also took hub caps off, and thought it was the culprit, but not so.
Now, I jacked the car up and looked underneath. Bushings, ball joints, and bearings look good. I did the test of pulling 12 to 6 position and 3 to 9 position and there is no play on either side.
The passenger side inner cv joint boot is leaking as there was/is grease there. I shook it and it moved a little, but nothing abnormal in my opinion and no clunking noises while driving or clicking when turning etc.
I did lock the brakes up a couple times in CT when stopping for a deer at about 35 mph. But, I cant see or feel any flat spots. I rotated the tire with a piece of metal right at the flat of the tire to see if there was any out of roundness. Nothing.
So, any suggestions as to what this may be, any idea what it may be. Thanks in advance.