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Discussion Starter · #1 ·
I have a 2000 mustang and on cold start ups there is this weird sucking sound but its not continuous, it almost pops in and out. It is very noticeable on start up and at idle and when I rev it but after it gets a little warm it goes away. It sounds like its coming from the left side of the motor. I don't think it's a hose just because it stops after a few minutes and it doesnt idle terribly rough. Gasket maybe?
 

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Mine does similar when I start her up on the cold days, she bogs down to around 2-400 then shoots up to normal
 

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I have mine in the well, I heard it from outside of the car,
 

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Discussion Starter · #7 ·
is it like an exhaust leak sort of sound
Not really, it sounds like an intake suck not exhaust. When I get home I'm going to take off my manifold and retorque the bolts correctly and see if that helps. I don't know what else to do?
 

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Discussion Starter · #9 ·
On 2000s when you have the defroster on it cyclesthe AC compressor for some reason. Mine did this also
The vents and stuff are off
 

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primer2tone said:
This morning the sucking popping sound was coming from under the covers. Winning!
Nice save lol
 
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