2.0L LNF Performance Tech 260hp and 260 lb-ft of torque Turbocharged tuner version.

What is this noise?

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Old Dec 23, 2017 | 07:05 PM
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aperfcrcle's Avatar
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From: Long Island
What is this noise?

Hey guys. My car has been acting up when it hits boost for a while now. It has bucked, spit and backfired when going into boost. Now it is making this noise. I took a video of it, it was in 2nd gear. One of the videos you can hear it about to do its sputter and buck but I let off. I'm hoping its a boost leak but the ticking / flapping noise has got me pretty concerned. Any ideas?


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Old Dec 28, 2017 | 10:59 AM
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Congrats. I have never heard a sound like that before.

Check your fuel trims and check for a boost leak.
Take your intake off and check turbo for shaft play.

It doesn't sound like valve train noise to me, but for sure a weird sound.

Could be as simple as an exhaust leak and the gasket flapping.
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Old Dec 30, 2017 | 07:32 PM
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aperfcrcle's Avatar
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From: Long Island
Originally Posted by umrdyldo
Congrats. I have never heard a sound like that before.

Check your fuel trims and check for a boost leak.
Take your intake off and check turbo for shaft play.

It doesn't sound like valve train noise to me, but for sure a weird sound.

Could be as simple as an exhaust leak and the gasket flapping.
haha thanks! I found a very small boost leak on the stock pipe. Ordered the ZZP pipes and couplers the other day. Hoping its not the wastegate.
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Old Jan 5, 2018 | 12:27 AM
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that noise sounds like ur turbo to manifold bolt came loose and ur gasket is vibrating. same sound mine made. go under and check it out
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Old Jul 7, 2025 | 07:05 PM
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I know I’m late to the party but did you figure out what it was? Just a leak? Also did it ever do it at low boost? My car makes the same noise.
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