2003 wrx grinding noise when letting off gas
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This is a discussion on 2003 wrx grinding noise when letting off gas within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; the grinding noise can barely be heard from drivers seat but is very noticeable from passengers seat sounds like its ...

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    2003 wrx grinding noise when letting off gas

    the grinding noise can barely be heard from drivers seat but is very noticeable from passengers seat sounds like its coming from under passengers seat under the floor boards and it only happens when letting off the gas in gear anyone know what it could be

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    Registered User oguitar's Avatar
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    The downpipe and exhaust are close to the passenger side of the car. Get underneath and check that no pipes are touching anything.
    Life is like riding a bicycle in order to keep your balance you must keep moving.

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    Registered User LetsWRCinmyWRX's Avatar
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    U sure its not a o2 sensor HS rattle?
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    alright thanks for the info ill check it out

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    Registered User EvoEatr's Avatar
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    As mentioned, check the basics first such as loose heat shields and such...How many miles are on the vehicle? Say you are cruising at 50 mph in 4th gear and throw the vehicle in neutral is the noise still present? Say you are in the same gear at the same speed and let off the gas...is the noise there? ....Does the noise only happen in one gear? Do you hear the noise at idle? Does the noise change with engine RPM, like if you are sitting at idle and rev the engine do you hear the noise change or even occur at all?

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    It only happens In gear like when I'm down shifting or when I'm at like 3000 rpms or higher in gear and slowing down the car has 170 k first I thought I could be a bearing in the TRANNY but it comes from passengers side not the middle of the car

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    Registered User EvoEatr's Avatar
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    Quote Originally Posted by moto21186 View Post
    It only happens In gear like when I'm down shifting or when I'm at like 3000 rpms or higher in gear and slowing down the car has 170 k first I thought I could be a bearing in the TRANNY but it comes from passengers side not the middle of the car

    if you are 100% sure you only hear the noise in gear, than I can most likely say it isnt a wheel bearing problem... From what your saying it sounds to me like you might have a pinion bearing problem in the transmission, however I dont want to throw up red flags without actually getting my hands on the car...

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    Yeah I thought pinion bearing but that sound should be equally head from either side considering its located in the middle of the car but the noise id way louder from passengers side I didn't even notice it till my friend drove the car and I sat in the passengers seat

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    Registered User EvoEatr's Avatar
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    Quote Originally Posted by moto21186 View Post
    Yeah I thought pinion bearing but that sound should be equally head from either side considering its located in the middle of the car but the noise id way louder from passengers side I didn't even notice it till my friend drove the car and I sat in the passengers seat
    If you can, run the car in the air and have someone listen below with a mechanics stethoscope, this almost always proves successful in finding the culprit...be careful though....

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