Intermittent vibration

[austindavis1993]

okay my 93 mtx has developed a vibration and noise at 60-65mph, it is intermittent. i dont think it would be my wheel balance given it is intermittent and also it becomes more apparent if i turn my wheel left. any help is appreciated

 

[Irish Pride]

Could be the start of an Axle going bad.

 

[austindavis1993]

is there any way i could diagnose it, any specific tests that i could do?

 

[austindavis1993]

well found out that it was my hub bearing, i did the 12/6 wheel shake and boy does it have a lot of play, and now the work begins.....i swear im fixing something atleast once a week on my SHO, oh well its worth it to me!

 

[93markVIII]

which wheel? what corner of the car?
fronts need a press to replace.
i don't think the rears need a press. just a big socket and torque wrench.

 

[austindavis1993]

Its the front right and i thought i could just buy a whole new hub assembly and trash the old?

 

[rubydist]

you can buy a knuckle / hub asm at the jy or new, but be sure to get one with abs, since most 93's did not have abs they will be rare.

I would check out the cv axle before digging into the hub.

 

[TimboSHO]

Its the front right and i thought i could just buy a whole new hub assembly and trash the old?

These are not a hub assembly like newer cars. This is a press in bearing, sometimes the hub is also included with certain brands. If you don't have access to a press, you will need to find a shop that will press it out for you.

 

[Irish Pride]

Could be the start of an Axle going bad.

I would check out the cv axle before digging into the hub.

Because you say its a vibration at a certain speed and that its noticable when turning i would look into the axle first before you go buying a new hub. Typically a bearing will give off are noticable hum or crackeling noise when it goes bad. I had a very noticable vibration between 70-80mph and i thought it was a balancing issue. Turns out it was the axle on its way out.

 

[quikSHOilver]

i swear im fixing something atleast once a week on my SHO, oh well its worth it to me!

Indeed, that why shosource sells Tshirt quoted this...

SHO's: Making mechanics out of ordinary people since 1989

You can find that Tshirt at this link.

http://www.shosource.com/catalog/product_info.php?cPath=10&products_id=153

 

[TimboSHO]

well found out that it was my hub bearing, i did the 12/6 wheel shake and boy does it have a lot of play, and now the work begins.....i swear im fixing something atleast once a week on my SHO, oh well its worth it to me!

Because you say its a vibration at a certain speed and that its noticable when turning i would look into the axle first before you go buying a new hub. Typically a bearing will give off are noticable hum or crackeling noise when it goes bad. I had a very noticable vibration between 70-80mph and i thought it was a balancing issue. Turns out it was the axle on its way out.

I would start with the wheel bearing if he has a significant amount of play. He knows he needs that, and it's possible to get a vibration from that. Start there, then see if the vibration is still there and go from there.

 

[austindavis1993]

Indeed, that why shosource sells Tshirt quoted this...

SHO's: Making mechanics out of ordinary people since 1989

You can find that Tshirt at this link.

http://www.shosource.com/catalog/product_info.php?cPath=10&products_id=153

LOL i love that saying its too true!

 

[austindavis1993]

well it comes to find out that i had a backed out hub nut thankfully thats all it was

 

[TimboSHO]

well it comes to find out that i had a backed out hub nut thankfully thats all it was

Did that take care of the vibration too? I once bought a car with a loose hub nut. After I tightened it the bearing was unbearably noisy.

 

[austindavis1993]

Did that take care of the vibration too? I once bought a car with a loose hub nut. After I tightened it the bearing was unbearably noisy.

Yeah no vibrations at all except for when im braking, i have warped rotors and im starting to think that, that may be the reason my hub nut backed out.

 

[rubydist]

well, you need to upgrade to 94-95 knuckles with the larger 94-95 brakes, or even better to 96+ brakes (which also fit on 94-95 knuckles.) the warped rotor problem is much, much less of a problem with either of those.

I also learned the hard way that those rotors are very, very sensitive to lug nut torque - they must be the same - no air wrench tightening of front wheel nuts!