Help with off throttle engine noise 2011 wrx
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This is a discussion on Help with off throttle engine noise 2011 wrx within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; 2700 miles, faint high pitch ringing in all gears when decelerating or maintaining 4100-4800 rpm. Happens also in neutral. Noise ...

  1. #1
    Registered User Anzioblack44's Avatar
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    Help with off throttle engine noise 2011 wrx

    2700 miles, faint high pitch ringing in all gears when decelerating or maintaining 4100-4800 rpm. Happens also in neutral. Noise is not present when accelerating through that powerband. Sounds kind of like a pulley or belt... Any ideas, first dealer service coming up. Not sure what I should make sure they check. Pisses me off cause I want to go to an ots tune this spring, but I'm holding off till I know the car is ok. Thanks for any input
    2011 SWP 5 door WRX LIMITED

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    Moderator T0rque's Avatar
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    Take it into the dealer.


    Lead Wrench @ WTF Tuning, LLC

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    Gold Member lokey's Avatar
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    Quote Originally Posted by T0rque View Post
    Take it into the dealer.
    +1. Considering the recent drop in temps, I suspect a belt. Does it go away after driving for a while? Did you try spraying? If not, I bet they will.
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    Registered User Anzioblack44's Avatar
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    Appointment booked. Noise doesn't fade after extended driving. I'm hesitant to spray the belt because its not squeaking or squealing. based on sound I'm thinking Maybe a faulty tensioner or pulley. I'm hoping nothing serious is wrong
    2011 SWP 5 door WRX LIMITED

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    Gold Member lokey's Avatar
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    When its doing it, does the ringing sound "fluttery" or constant?
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    Greg

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    ProTuned Stage 3ish '11 WRX Ltd HB (SWP) ~ 354 awhp 404 ft-lb tq on E85
    Friends don't let friends drive Mitsubishis.

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    Registered User Anzioblack44's Avatar
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    pretty much constant, i can hear it very faintly outside the range of 4100-4500, but its audible much more apparently in that rpm range. I do notice that if i transition to light throttle the noise seems to dissapear. I wonder if something is resonating, i know our clutches/flywheels are very noisy for a stock car. my cobalts exedy 6 puck wasnt much louder.

    I get that classic my09 deceleration noise when in 2nd below 2000rpm. I can put up with these noises if they are normal, im realistic its not a BMW, and im willing to compromise. I just want to know that everything is working properly as i plan to have it much longer than i had my cobalt.
    2011 SWP 5 door WRX LIMITED

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    Registered User Anzioblack44's Avatar
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    Took car in, tech was able to reproduce the noise, but claimed that its harmless and somewhat normal, backlash in the transmission, not worth a teardown
    2011 SWP 5 door WRX LIMITED

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    Gold Member lokey's Avatar
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    Cool, good to know. At least you have the peace of mind knowing that they've looked at it.
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    Greg

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    ProTuned Stage 3ish '11 WRX Ltd HB (SWP) ~ 354 awhp 404 ft-lb tq on E85
    Friends don't let friends drive Mitsubishis.

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