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04-26-2020, 01:52 AM
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#1 |
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Theoren Hanks
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Some concerning noise?
Hi guys,
Recently got retuned and I've always had a small wooshing/metallic noise when the car is turned off. Today it got a little more short and agressive. The car shuts down a little rougher too. Currently running basically FBO with ethanol. Could this be from intake valve coking? I'm high mileage at almost 70k miles. I was a fool and didn't invest in a catch can either. Any ideas are somewhere to start. Thanks guys, hope everyone's safe and healthy! |
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04-26-2020, 08:14 AM
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#2 |
 Drives: 2018 SS, 2016 GT Join Date: Mar 2018
Location: California
Posts: 210
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Mine sometimes sounds like a blow off valve when turned off lol.
Small Gremlins that unless trigger a sensor just seem to happen with many factors as to why, humidity, fuel pump dumped a bit of gas when powered cut, etc. Like any car, watch the vitals, it's probably fine. If coked valves were an issue you'd notice it more with throttle. |
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04-27-2020, 06:33 AM
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#3 |
        
Drives: like an old lady Join Date: Jun 2012
Location: indiana
Posts: 2,420
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does the car have any exhaust leaks? slip joint connections that aren’t 100% sealed sometimes do this.
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2016+ camaro: everyone’s first car
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