My 97 Pontiac grand prix has a humming/vibrating noise starting at 35mph and is loud enough to drowned out the radio? It sounds like its coming from the front center of the car? The driving and performance is not effected at all and does not get better or worse and always starts at 35+ mph

SOURCE: 2004 Pontiac Grand Am SE1 loud noise

It is probably the wheel bearings they have been known for that.

Dave C

• 1050 Answers
• Posted on Mar 11, 2009

SOURCE: 2004 grand prix roaring noise

It really sounds like a wheel bearing to me, If you drive down a straight smooth road and gently rock the steering wheel back and forth, you can sometimes tell which side it is by the way the car loads the front wheels. I believe this bearing can be purchased as hub and bearing assembly so it is fairly easy to replace but the part is pricey. Remove the wheel, brake caliper and rotor, look through the hub flange access holes and undo the mounting bolts and pull the bearing assembly out of the knuckle.

SOURCE: Loud annoying sound when driving over 35 mph

Check the fluid level and make sure. If the fluid level is not the problem, I would have someone do a complete check on the front end.

SOURCE: vibration after 50 mph, and when accelerateing

Welcome to fixya the best thing to do is check the rims for imperfections and slight bents that causes the vibrations at that speed go to www.collisionrepairadvice.com to get a wheel repair company to look at.

SOURCE: ford explorer making loud roaring noise at 35 to 45 mph

what year is your explorer, if it is a newer one say within the last 10 years it could be from either the rear end or it could be from a hub bearing in the front end. these have problems with hub bearings going out.