My Linjcoln MKX has a slight vibration at speed 25 to 40 MPH. What could be the cause.
Does not have this vibration at this speed all the time. The vibration quits after reaching 40 MPH. I noticed the right rear tire has more tread depth than the other 3 tires. Could this be the cause.
Speed sensitive vibration is usually tire balance. A failing wheel bearing or separated tire can do it too but wheel/tire balance is usually the culprit. You might consider having your alignment and chassis checked while you're having your tires rotated. Don't cheap this one if you want a thorough inspection. Lots of shops will do an alignment even through the entire suspension system is wiped out (PepBoys etc.) A reputable shop/technician will tell you what is wrong with your vehicle and give you an estimate before trying to align a worn out front end. (the concern with alignment and chassis is in reference to the uneven tire wear).
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