jman1986

2000 GT, 3.73 rear end, auto trans, Nankang Ultra Sport NS2 tires all around, bought the car in Jan this year and all seemed quiet. I have recently noticed the sound and it is getting louder. The sound is a low pitch but loud moaning similar to having mudders (wawawawaw) on the car especially around 55-75 mph. There is no noticible grinding and turning dosent effect it. Could this be a tire problem? The tread is probably 50-60% gone and the rears are 285/30 20". If not, what could it be? I have researched for over an hour and threads with this problem are either getting grinding noise or steering effects the noise. I will be lifting the car tomorrow to shake everything. With the car in neutral off the ground, if I spin a rear wheel, should I hear anything?

usermst9673

Is the sound coming from the rear wheel? It could be tires, bent wheel have you curb checked anything? Also spin the wheels when it is in the air and listen carefully at both sides, if one side is louder than the other its most likely a bad wheel bearing. My right rear bearing went at about 77k miles, how many miles are on your car?

highpsi04

Yup a wheel bearing will make a noise like that.

WhiteNoise

if u hear and feel it it in the steering wheel then its its the tires, if u just hear it the it has to be ur bearings

mindtrix2010

Does the sound change on different asphalt surfaces? My tires do the same thing.

reznap

If you get your tires balanced (this is cheap - like 10 bucks a wheel at most I think) it will go away.

00' GT

mine was doin the same thing. it kept getting louder as well, it was the rt front hub bearing. got a new hub assembly for $150 at auto zone.

jman1986

My front wheel cambers were way negative which was doing a number on the inside edge of my old Nankang tires. Installed some Michelin Pilot Sport A/S's and had a front allignment done. Quiet and smooth!

CAMDUP

bad hub / bad tire / or bent wheel

loweredfourpointsix

i know a focus is a completely diff car but my buddies N20 foci's wheel bearing went out in the back and it was making that god awful sound around 50mph..