Engine rattle? - Subaru WRX Forum
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#1 Old 03-05-2014, 06:47 AM
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Engine rattle?

hello i own an 03 wrx and i have a slight rattle once i let off the gas, its been going on for a week. when i give the car gas it will rattle when the RPMs are going down. any ideas?? its a stock BOV
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#2 Old 03-05-2014, 07:19 AM
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Video?
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#3 Old 03-05-2014, 07:31 AM
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i cant upload a video, but when the rpms drop it rattles like theres a beebee in there
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#4 Old 03-05-2014, 10:29 PM
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Light weight flywheel?
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#5 Old 03-06-2014, 12:35 AM
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it could be a number of things. but my guess if its def coming from the block. could be a bearing issue somewhere in there.
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#6 Old 03-06-2014, 08:30 AM
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it sounds like its around the turbo/downpipe area? but it doesnt do it extremely loud like i can barley hear it while im driving but if i life the hood and pull the throttle then ill hear it, my performance isnt affected by it still runs good
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#7 Old 03-06-2014, 09:10 AM
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Maybe the heat shield around the turbo has loosed up just a little to cause rattle.
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#8 Old 03-06-2014, 09:28 AM
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im not too sure the turbo has a heat shield, it was just replaced a few months ago. it kinda sounds like a bolt is loose and rattling around. but id really like to fix it and living in Central PA its hard without a garage hah
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#9 Old 03-06-2014, 09:32 AM
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There's nothing covering your turbo? Even if they replaced the turbo they should have reinstalled your heat shield
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#10 Old 03-06-2014, 09:36 AM
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it has no turbo blanket or anything, it does sound kinda like a berring rattling around but wouldnt it have some kind of mechanical problem?
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#11 Old 03-06-2014, 11:05 AM
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If your turbo was just replaced a few months ago, and the noise is coming from where the turbo is maybe you should take it back to the place that installed the turbo. Was it a new turbo or used?

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#12 Old 03-06-2014, 11:41 AM
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it was a used TD04
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#13 Old 03-06-2014, 03:59 PM
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Where are you located in pa? I had a similar noise turned out to be the plug in the aftermarket down pipe where a 02 can go. Just had to tighten the bolt that was in the hole. Could be the heat shield on the up pipe as well


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#14 Old 03-07-2014, 07:50 AM
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i am located in the Altoona/State college area. and i had a feeling it might be my shield on my up pipe as well
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#15 Old 06-06-2014, 03:25 AM
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I had that problem too but turn out to be my turboxs bov. It was rattling I add another washer and noise went away.
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