Help? my 94 Turbo legacy is making mooing noises like a cow.

That spinning thing that makes all of the cool noises. OE and Aftermarket.

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travisotto93
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Help? my 94 Turbo legacy is making mooing noises like a cow.

Post by travisotto93 » Tue Oct 02, 2018 10:29 pm

My 94 Turbo Legacy started making a low whooshing sound. Only happens when I let off the gas above 2k-3k rpm with some boost built. Honestly, it sounds like a cow mooing. doesn't happen when car shifts in boost. Anyone have any idea what I'm hearing? Should I be worried?

Seem like sound is coming from the rear end.
Car has 140,000 Miles on it.

Legacy777
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Re: Help? my 94 Turbo legacy is making mooing noises like a

Post by Legacy777 » Mon Oct 08, 2018 7:39 pm

Welcome to the BBS.

What you are likely hearing is the bypass valve dumping pressure back into the intake. The other possibility is if the bypass valve is not functioning properly it could be compressor surge on the turbo.

Do you have any modifications to the engine/turbo or is it all stock?

I'm going to move your thread to the turbo forum.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm

travisotto93
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Posts: 3
Joined: Tue Oct 02, 2018 10:03 pm

Re: Help? my 94 Turbo legacy is making mooing noises like a

Post by travisotto93 » Wed Oct 10, 2018 12:01 am

Car is all stock.

I am going to try and get a recording with the noise. Can only hear the noise while driving. Unable to recreate noise reving engine while sitting in park or neutral.

Legacy777
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Re: Help? my 94 Turbo legacy is making mooing noises like a

Post by Legacy777 » Wed Oct 10, 2018 5:17 pm

Ok, yeah if you can take a recording and upload to youtube or something that would be helpful.
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm

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