Vibration in 2001 Cadillac at 65 mph and >


#1

I bought this car a year ago with 80,000 miles on it. I noticed right away a vibration when you approach 65 mph. It disappears around 73 mph. The dealer said it was probably due to two different size tires on the car and that they were a bit worn. I had them rotated faithfully until I bought new tires. There is still a vibration. I never expected a Cadillac to vibrate like that! Anyone have any idea what it might be??


#2

Is it an ENGINE vibration? (Can you make it vibrate with the car standing still?) If you can’t, it’s in the driveline, usually a tire, sometimes a brake component, rarely a bent/deformed drive shaft. A shop that specializes in wheel, frame and axle service will sort it out quickly…