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V6 engine pop noise

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Old 04-11-2015, 08:05 PM   #1
kritllsj
 
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Vehicle: 2007, ford mustang, v6
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Red face V6 engine pop noise

Hello, there i'm new here, so mind as well just introduce myself.... I'm Krit. So today I've just replaced my serpentine belt myself, and i'm pretty sure this problem has happened before today but i just haven't noticed it. So everytime I shut off my engine, it makes a pop noise... like air is either being sucked in or pushed out near the altenator. Yeah... I don't know if I have to tune it or what... any advice would be great.
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Old 04-12-2015, 09:00 PM   #2
jz78817
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Originally Posted by kritllsj View Post
Hello, there i'm new here, so mind as well just introduce myself.... I'm Krit. So today I've just replaced my serpentine belt myself, and i'm pretty sure this problem has happened before today but i just haven't noticed it. So everytime I shut off my engine, it makes a pop noise... like air is either being sucked in or pushed out near the altenator. Yeah... I don't know if I have to tune it or what... any advice would be great.
it'd help if you could get a recording or video of the noise. it could be as simple as something like the throttle plate closing when you turn the car off. if it seems more prominent after changing the belt, then it could be something like the "Cummins squeak." meaning, Dodge trucks with the Cummins turbodiesel will squeak when turning the truck off because the engine stops so fast the accessories are still spinning and slip on the belt.
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Old 04-12-2015, 10:41 PM   #3
cruisin5268d
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Originally Posted by jz78817 View Post
it'd help if you could get a recording or video of the noise. it could be as simple as something like the throttle plate closing when you turn the car off. if it seems more prominent after changing the belt, then it could be something like the "Cummins squeak." meaning, Dodge trucks with the Cummins turbodiesel will squeak when turning the truck off because the engine stops so fast the accessories are still spinning and slip on the belt.
Welp, that's it. I quit. I've seen all there is to see on this forum. Never did I expect to see a reference to the "Cummins squeak."

But, yes, the Cummins squeak is legit.
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Old 04-12-2015, 10:41 PM
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