Whining coming from car
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This is a discussion on Whining coming from car within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; So today my 02' stage4 rex developed a whine. It occurs in specified conditions. It always happens when accelerating. If ...

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    Registered User DTR rex's Avatar
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    Whining coming from car

    So today my 02' stage4 rex developed a whine.

    It occurs in specified conditions.

    It always happens when accelerating.
    If I let off the gas it still continues. HOWEVER, if I put it in neutral and stay off the gas it goes away.

    Strangely though, if I put it in neutral and rev it happens

    Can't locate exactly where it's coming from but I am thinking it must either be a belt or the turbo. First thought it was the tranny, but if it was the tranny it wouldn't whine in neutral while revving right?

    Car has 110k on it and all belts are recently changed aside from timing belt.

    Thanks
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    Would Never, Ever Say Something Bad About an Admin's Mom SonicWagon's Avatar
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    Time to do the timing belt anyway. If it's whining in neutral it is not your transmission. I would check all the belts first.
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    Registered User teflon_jones's Avatar
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    It could be your transmission. There's still parts of it spinning even in neutral. The gears connecting it to the axles/driveshaft are just disengaged. I hope it's not that...
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    Registered User eastbaywrx's Avatar
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    What kind of whining is it? I experienced this recently too under the same conditions you listed. It was very high pitched, and couple guys on here said it was a boost leak. It turned out to be exactly that, maybe that is what is causing you to hear a whining during the situations you listed.

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    Registered User lytlec's Avatar
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    At first I thought you were referring to significant other!

    Hopefully it's not a transmission death whine!
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    Registered User DTR rex's Avatar
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    Quote Originally Posted by teflon_jones View Post
    It could be your transmission. There's still parts of it spinning even in neutral. The gears connecting it to the axles/driveshaft are just disengaged. I hope it's not that...
    It only whines in neutral if I hit the gas (rev). If I'm in neutral just cruising it goes away.
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    Registered User DTR rex's Avatar
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    Quote Originally Posted by eastbaywrx View Post
    What kind of whining is it? I experienced this recently too under the same conditions you listed. It was very high pitched, and couple guys on here said it was a boost leak. It turned out to be exactly that, maybe that is what is causing you to hear a whining during the situations you listed.
    Yeah, I was thinking a boost leak too based on the fact that in neutral it goes away but the second I rev it starts again.

    So basically it has to be either a boost leak or a belt?

    Boost leak might make some sense since my car has been feeling kinda sluggish lately.

    Best way to check for a boost leak?
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    Registered User lytlec's Avatar
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    Quote Originally Posted by DTR rex View Post
    Yeah, I was thinking a boost leak too based on the fact that in neutral it goes away but the second I rev it starts again.

    So basically it has to be either a boost leak or a belt?

    Boost leak might make some sense since my car has been feeling kinda sluggish lately.

    Best way to check for a boost leak?
    My tuner does a boost leak test...do you have any good tuners near you?

    If you have an air compressor and a regulator you can look up how to build a boost leak tester and do it yourself too! There are a few diy threads on nasioc.
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    Registered User Timdog1650's Avatar
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    Is it inappropriate to make a joke on this thread? I mean, whenever I get a whining tranny in my car, I just kick her out and pick up another one...*rimshot*

    Does it sound like synchro whining?

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    It must be those PPGs you put in


    I bet it's synchro whine. My car has been doing the same thing, especially noticeable in the cold. In first, if I put the clutch down, I hear the whine. If put in neutral and let the clutch out, no whine.
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    Registered User DTR rex's Avatar
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    Whine is louder now and started on start up. Sounded a lot like a belt at idle. Probably the timing belt then, huh?
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    Registered User wo^tron's Avatar
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    power steering maybe? my PS pump just bit the dust, but a few months before any "feelable" symptoms showed up (stiff steering wheel no clutch assist etc) I'd get some pretty bad whining, it would start on startup and seemed throttle related
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    Registered User KnightFury's Avatar
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    Quote Originally Posted by Timdog1650 View Post
    Is it inappropriate to make a joke on this thread? I mean, whenever I get a whining tranny in my car, I just kick her out and pick up another one...*rimshot*
    +1!!!!

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    My car is has a whine that sounds like what you described. Whines when you rev it and follows engine RPM. It does not chance in gear or out, does not chance when moving or not. So, mine is not trans related. My next idea was the belts and all they are connected to. (It sounded like an alternator going out but I could not pinpoint the whine with the hood up). I removed the two accessory belts and started it up.... guess what, whine still there. So that rules out all that equipment. (I replaced the belts anyhow.) Could it be the turbo? I suppose it could be but I doubt it. The car runs just as well as it ever did, also I would think if it was the turbo it would not start whining till it spooled a little. Mine whines right off idle and starts as soon as I start the car before the turbo ever builds any pressure.
    Also I might add that the car has not thrown any codes and is completely stock. My next guess was the timing belt. Car has about 90,000 on it so it was due anyways. I got a new kit for the belt and all the tensioners and pulleys. The kit also had a water pump. Last weekend I did the chance out . ( someone on here posted a how too...thank you for that it was very helpful!!) The only thing I did not chance was the water pump. Mine looked fine, wasn't leaking and had no shaft play.) I put it all back together and guess what.... still whines!
    This porb didn't help you much, just throwing it out there. Anyone have any other ideas what it could be?

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