Noise reduction on 2003 Toyota Echo

I bought this car from a Nissan dealer who said the car is noisy because of poor insulation. It sounds like a small airplane. Noise increases with speed. was considering adding insulation or bedliner paint under the carpet. Transmission was serviced by dealer and seems to shift fine. Anyone have some advise?

by in Vacaville, CA on January 28, 2011
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
ANSWER by , January 28, 2011
I would have the tires and/or the wheel bearings checked. Tires with irregular wear and/or worn/damaged wheel bearings will be very noisy...and that noise will increase with speed.