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Old 03-30-2006, 01:01 AM
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High Pitched Whine

It doesn't happen with engine rev in Park, It only happens when driving. The transmission is in perfect condition, know it's not that. When I get to about 35 or 40 MPH, it starts to whine a bit, and then as it gets faster, it whines more, and then about 65 or 70 mph you can't hear it over the rev of the engine. Could it be wheel bearing starting to fail? It sounds like it's coming from the front left, and since I've never sat passenger in my car I don't know if it's coming from the front right, too. If I replace one set, I will replace them all, and I wanna isolate the problem so I can fix it before something fails big time. Thanks for your repsonses!

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Old 03-30-2006, 05:54 AM
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so it only whines when the vehicle is in drive and moving?

need some specifics...like what is the make and model...what motor...etc.

A whine from the front could be several things from wheel bearings to an alternator that is getting ready to crap out to a power steering pump.
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Old 03-30-2006, 07:18 AM
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Sometimes aftermarket stereo setups will pick up the inductance from the ignition system. Sometimes its hard to tell what it is and where its coming from. It is probably more likely an accessory or bearing though.
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Old 03-30-2006, 07:59 AM
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I used to have a high pitched whine coming from the front of my car. It didn't take me long to figure out it was from my wife. Got divorced, whining stopped immediately. End of problem.
ZAPPER
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Old 03-30-2006, 11:33 AM
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LOL Zapper! It's a 1965 Mustang 200ci L6 3.3L engine, C4 transmission. It's got a rebuilt alternator. Part of the whining before was indeed the alt, but that whined all the time. I put my steth up to the alt and I could hear it just dying inside, and then it crapped out so I replaced it. It happens with my stereo off, too, I checked for that. Any suggestions?
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Old 03-30-2006, 12:41 PM
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It can still do it with the stereo off if there is separate amp that is on.
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Old 03-30-2006, 12:49 PM
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Did you check your fan clutch? My truck did something like that and finely the fan clutch welded its self together and I found the problem.
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Old 03-30-2006, 01:03 PM
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Try this: as the whine begins, start turning the wheel from side to side thus loading and unloading the left wheel bearing. Keep your speed steady, though. If the noise decreases on the unload move, then you probably have a bearing issue.
Also, sometimes a drum can rub against a backing plate. This can be caused by a number of thing.
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Old 03-30-2006, 05:01 PM
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Hey wheel bearings are easy to check just pull those front wheels off and feel of the bearings and see if they are rough, if it has been a while they probably need repacking anyway. Check those things, guessing at the problem could leave stranded with a tow bill
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Old 03-30-2006, 05:11 PM
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Quote:
Originally Posted by ZAPPER68
I used to have a high pitched whine coming from the front of my car. It didn't take me long to figure out it was from my wife. Got divorced, whining stopped immediately. End of problem.
ZAPPER
thats funny
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Old 03-31-2006, 12:46 AM
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If it was the stereo, would the fade (front to rear speakers) make the noise move? Also, if I lean my head towards the steering wheel, the noise goes away, but if I put my head further back towards the rear of the car, it gets louder. Guess it wasn't the front. The noise CONSIDERABLY cut out when I moved the wheel back and forth, it was AMAZING! (And a bit scary, as my whole steering system needs rebuilding!) Bearing issue? I tried fading the stereo to the front or back to see if I could get the whine to follow it, but to no avail.
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