Weird noise from engine

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Jun 15, 2019 | 04:20 PM

helloimjason

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Weird noise from engine

Not sure what this noise it, i knew my old turbo was bad so I got a gtp38r, this noise is pretty much exactly the same as it was with my old turbo. I checked the boots and everything and nothing seems to be leaking. Don’t have my boost gauge currently hooked up because i had to get a new spyder pipe and don’t currently have the tap to put the fitting on it.

couldn’t get it to upload through the site so put it on YouTube.

Jun 15, 2019 | 04:55 PM

Nicmike

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From: Western AR

I didn't hear anything unusual in that clip...

Jun 15, 2019 | 05:31 PM

helloimjason

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That squeal while accelerating, and it even does it at like 10mph if i just touch the gas. I’ve had the truck for 4 years and never heard it before. Also it does feel like it is down on power some

Jun 15, 2019 | 06:24 PM

Sous

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From: Lake Hartwell, GA

So, you had a turbo that made the noise you recorded. You bought and installed a GTP38R to eliminate the noise, but it is still there.

Now you are here with a video trying to get with identifying the noise.

Is that right?

Just so we are clear, I didn't hear a lot of squeal noise, but it did sound very airy. The GTP38R is known to be a screamer though.

Also, I am not very familiar with the 38R, but a lot of members on here are.

What intake does your truck have?

Jun 15, 2019 | 06:32 PM

helloimjason

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I knew the turbo i had before was bad regardless, it was a cheap one off amazon and had a ton of shaft play and when i turned the truck off i could hear is scraping the inside of the housing. The noise I’m hearing now is the same i was hearing with that turbo. I know it’s hard to hear anything bad in the video but it’s a horrible screeching/whistling noise, And even the taping the throttle you can hear us quickly. Does anyone know if a belt could possibly sound like that under a load? I know there has to be a boost leak somewhere but hoping there is something else and the boost leak is minor and an easy fix. I do already have bellowed uppipes that i loosened to get the turbo to line up with the flange but i tightened them back down, possibly not tight enough?

Jun 15, 2019 | 09:03 PM

z31freakify

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From: Las Cruces New Mexico

Could be a bad fan clutch or a slipping AC clutch.

Jun 16, 2019 | 10:27 AM

helloimjason

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I have the afe big boost filter, does that allow significantly more turbo noise than the 6637? I had the 6637 with the old turbo, and got the AFe when i ordered the gtp38r i just installed