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-   -   grinding noise (https://mustangboards.com/general-tech-forum/33403-grinding-noise.html)

doobie 11-13-2008 07:45 AM

grinding noise
 
starting this morning ive been hearing a grinding noise when going from a stop to about 15-20mph and then it stops. sort of sounds like plastic on rough asphalt, but nothing is dragging. i can feel the grinding as well. from what i can tell, its coming from the front end, driver side/middle. car is an 02 v6 auto, 91k. any ideas?

Leonide 11-13-2008 11:36 AM

did you check your brakes? :)

doobie 11-13-2008 11:47 AM

brakes were replaced less than 12 months ago, all pads and rotors.

Lazerred6 11-13-2008 11:49 AM

Does it stop when the car shifts out of 1st cause thats about 15 to 20 mph or does it just kind of go away regardless of the shift

bassman97 11-13-2008 12:59 PM

Lift the car car up and spin the wheels. If you feel resistance in any, that's your problem.

King 11-13-2008 01:07 PM

^ I wouldnt' go as far to say that THAT is your problem, but it's a start. Laserred6 is probably right on this one though. It used to be like that in first gear of my old sixer

doobie 11-13-2008 01:22 PM


Originally Posted by Lazerred6 (Post 364011)
Does it stop when the car shifts out of 1st cause thats about 15 to 20 miles per hour or does it just kind of go away regardless of the shift

im not 100% sure, ill report back after my drive home.

doobie 11-13-2008 01:24 PM

i bought my car with 47k and it now has 91k and i havent ever changed the trans fluid. would this cause a grinding?

King 11-13-2008 01:27 PM

Has it ever had the trans fluid flushed?

Lazerred6 11-13-2008 01:29 PM

You may want to do a tranny flush regardless of what is causeing the noise

doobie 11-13-2008 01:31 PM


Originally Posted by King (Post 364025)
Has it ever had the trans fluid flushed?

not since ive owned it. i dont know about prior to that.

King 11-13-2008 01:31 PM


Originally Posted by Lazerred6 (Post 364026)
You may want to do a tranny flush regardless of what is causeing the noise

Agreed.

doobie 11-13-2008 01:49 PM

you think i should do a flush or a drain and fill?

King 11-13-2008 01:52 PM

You can. Most people just go to a jiffy-lube, grease monkey or places like that, though.

doobie 11-13-2008 04:23 PM

the grinding takes place in all gears and in neutral while rolling down a hill. im thinking it could be a wheel bearing.

bassman97 11-13-2008 06:16 PM

Like I said, raise the car and spin the wheels. If you feel resistance, that's your trouble spot.

doobie 11-13-2008 07:57 PM


Originally Posted by bassman97 (Post 364115)
Like I said, raise the car and spin the wheels. If you feel resistance, that's your trouble spot.

yep, will be doing that tomorrow after work for sure. thanks for the tips.

maximiller 11-15-2008 07:53 PM


Originally Posted by doobie (Post 364099)
the grinding takes place in all gears and in neutral while rolling down a hill. im thinking it could be a wheel bearing.

check your rear axle for leaks... just had the same sound on my car 2001 Mustang GT. the grinding sound in my case was the differential and the pinion got F...ed up :(:(:( pain to fix... hopefully urs is not the same... good luck

doobie 11-15-2008 08:40 PM

pulled the front wheel hub today (drivers side) as it was the wheel that had play in it when we had it lifted.

the inside of the hub smelled like a rotting ass. could defintely tell the bearing was shot before we even opened it up. once it was opened, the retaining ring for the ball bearings was nearly gone in the outer bearing. the inner bearing wouldnt even turn without some major effort. had i driven to work another day (60mi round trip on the highway), i'd bet there would have been a major problem.

replaced the hub assembly and its good2go. wallet is 60$ lighter, but the car is all good.


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