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Old 09-15-2012, 03:52 PM   #1
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Angry Weird Sucking Noise

I get a strange, random sucking noise which appears to be coming from the passenger side inlet on my '01 Boxster. It is not related to engine speed, acceleration load, etc. It happens maybe 5 or 6 times during a 30 minute run and lasts about 3 - 5 seconds.

Any ideas?
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Old 09-15-2012, 04:54 PM   #2
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OMG... it's all I can do to leave this one alone.. weird sucking noise from the passenger side that only lasts about 5 seconds, eh? My sides are starting to hurt....

Sorry dude (snicker) I don't know what that could be (hehe) I just had to post though (snork) Maybe someone else can help you. (guffaw) oh dear... someone, please help this guy. I have tears steaming down my face....
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Old 09-15-2012, 06:23 PM   #3
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...does she have a sister???
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Old 09-15-2012, 08:28 PM   #4
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You sure it's not sucking from the oil cap? If so, could be an AOS problem.
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Old 09-16-2012, 05:26 AM   #5
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Keep in mind that the louvers on the passenger side are an outlet, not an inlet.
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Old 09-16-2012, 05:35 AM   #6
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Quote:
on the passenger side are an outlet, not an inlet.
oh i so want to.....


but i wont.



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Old 09-16-2012, 05:58 AM   #7
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Originally Posted by schnellman View Post
Keep in mind that the louvers on the passenger side are an outlet, not an inlet.
Ummm. It's not entirely relevant to the discussion but I'm not sure that this is true. I believe the passenger side louvered hole is the inlet for the engine air clearing / cooling fan. Correct me if I'm wrong.
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Old 09-16-2012, 05:58 AM   #8
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It's your air pump. It happens at start up right
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Old 09-16-2012, 07:22 AM   #9
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Originally Posted by Jittsl View Post
Ummm. It's not entirely relevant to the discussion but I'm not sure that this is true. I believe the passenger side louvered hole is the inlet for the engine air clearing / cooling fan. Correct me if I'm wrong.
Okay. You're wrong. The driver's side is an inlet and the passenger's side is an outlet.
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Old 09-16-2012, 09:21 AM   #10
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It is most likely the engine compartment fan. This fan will start up and stop somewhat randomly to cool the mostly enclosed engine compartment. Air is exhausted through the passenger side vent.
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Old 09-16-2012, 06:23 PM   #11
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Originally Posted by Boxster101 View Post
Okay. You're wrong. The driver's side is an inlet and the passenger's side is an outlet.
You live and learn. I removed my fan assembly in a weight saving exercise before i ever ran the car but looking at it I always assumed it sucked in and blew through to the bottom. But I guess it does make sense that it would suck the hot air off the top of the motor.
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Old 09-17-2012, 03:26 AM   #12
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Ummm.. on my 987 the fan sucks IN. I checked it last time this debate came up.
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