Diagnosis HELP!
04-25-2010, 11:19 AM
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Diagnosis HELP! Fellas,
As many of you know, I am the new, proud owner of an 05 V. In the last week I have noticed the appearance of a weird grinding noise and I need help from the pros in diagnosing it.
Only happens occassionally...not a constant sound. Sounds like a wheel bearing going bad, but it isn't (we checked). It varies on the car speed...not the rpm of the motor. Driveshaft or something?!? We also put the car of a lift and tried to reproduce the sound and couldn't do so.
What is throwing me is that after owning the car for a week, this sound has now shown up and is occurring so sporadically that I can't track it down!
Thanks in advance,
LAW
LAW
As many of you know, I am the new, proud owner of an 05 V. In the last week I have noticed the appearance of a weird grinding noise and I need help from the pros in diagnosing it.
Only happens occassionally...not a constant sound. Sounds like a wheel bearing going bad, but it isn't (we checked). It varies on the car speed...not the rpm of the motor. Driveshaft or something?!? We also put the car of a lift and tried to reproduce the sound and couldn't do so.
What is throwing me is that after owning the car for a week, this sound has now shown up and is occurring so sporadically that I can't track it down!
Thanks in advance,
LAW
LAW
04-25-2010, 11:25 AM
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I had a similar problem. When I got my 04 V I heard a faint grinding coming from the back. It wasn't always there but I was occasionally. I turned out to be a bad bearing in the drive shaft (right before the rear diff). I had to replace the whole shaft because the bearing isn't a separate part. $1500 at the dealer. Ouch. I hope you have better luck.
04-25-2010, 11:28 AM
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I had a similar problem. When I got my 04 V I heard a faint grinding coming from the back. It wasn't always there but I was occasionally. I turned out to be a bad bearing in the drive shaft (right before the rear diff). I had to replace the whole shaft because the bearing isn't a separate part. $1500 at the dealer. Ouch. I hope you have better luck.
LAW
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04-25-2010, 06:03 PM
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04-26-2010, 01:43 PM
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Like Stageup said, the dif is always a good place to start since it's a known weakness. And if it doesn't solve it, at least you have new fluid in there.
04-26-2010, 09:06 PM
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Is there a bearing somewhere in in the "middle" of the driveshaft? My mechanic said there appears to be a joint or bearing before the rear end...he thinks that may be the issue.
LAW
LAW
05-06-2010, 02:03 PM
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It appears that the problem squeal is still extremely unpredictable.....it will come and go as it wants. From what I can tell, no difference in driving style, speed, rpm, etc. makes any difference.
Any more input on this?
LAW
Any more input on this?
LAW
05-06-2010, 05:04 PM
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Well, noise or squeal. Two distinctively different sounds.
Since, you said that it does not make a difference with the clutch in or out, then I would be inspecting the pads & rotors for irregularities. At certain rotational speeds, the rotors/pads can generate a harmonic based on a particular irregularity. Also, how is your parking brake working? Does it release all the way. Good Luck.
Since, you said that it does not make a difference with the clutch in or out, then I would be inspecting the pads & rotors for irregularities. At certain rotational speeds, the rotors/pads can generate a harmonic based on a particular irregularity. Also, how is your parking brake working? Does it release all the way. Good Luck.
