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3600 sc intake noise by pparker
Started on: 04-01-2015 12:17 PM
Replies: 7 (171 views)
Last post by: pparker on 04-05-2015 11:26 AM
pparker
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Report this Post04-01-2015 12:17 PM Click Here to See the Profile for pparkerClick Here to Email pparkerSend a Private Message to pparkerEdit/Delete MessageReply w/QuoteDirect Link to This Post
When the engine warms up the intake/air cleaner starts to make a flapping or popping noise. loud enough to be irritating. any ideas ?
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Report this Post04-01-2015 01:19 PM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
Popping like a backfire? How does it run, and how is compression?
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Darth Fiero
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Report this Post04-02-2015 06:09 PM Click Here to See the Profile for Darth FieroClick Here to visit Darth Fiero's HomePageClick Here to Email Darth FieroSend a Private Message to Darth FieroEdit/Delete MessageReply w/QuoteDirect Link to This Post
Does it almost sound like a light knocking noise? This is common in superchargers that have worn out couplers in them. If it is a bad coupler, the noise goes away if you remove the supercharger belt and run the engine without it on.

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pparker
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Report this Post04-03-2015 01:16 PM Click Here to See the Profile for pparkerClick Here to Email pparkerSend a Private Message to pparkerEdit/Delete MessageReply w/QuoteDirect Link to This Post
The noise is not a backfire or knock. It's more like the intake is rapidly opening and closing ?
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Report this Post04-03-2015 02:08 PM Click Here to See the Profile for 2.5Send a Private Message to 2.5Edit/Delete MessageReply w/QuoteDirect Link to This Post
Sucked up a rat?

But really though, maybe a video would work?
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pparker
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Report this Post04-03-2015 02:30 PM Click Here to See the Profile for pparkerClick Here to Email pparkerSend a Private Message to pparkerEdit/Delete MessageReply w/QuoteDirect Link to This Post
The noise is not a backfire or knock. It's more like the intake is rapidly opening and closing ?
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Darth Fiero
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Report this Post04-03-2015 03:05 PM Click Here to See the Profile for Darth FieroClick Here to visit Darth Fiero's HomePageClick Here to Email Darth FieroSend a Private Message to Darth FieroEdit/Delete MessageReply w/QuoteDirect Link to This Post
When the engine is cold, the IAC (idle air control) valve is open a lot which can cause a loud air sucking noise to be audible from the air cleaner. Such noises may not be consistent at times giving the impression something is opening and closing rapidly when really it is not. If the noise goes away when the engine is fully warmed up, then I would consider this to be normal operation. If this noise bothers you, the only way to get rid of it would be to install some baffling in the air induction tube somewhere like what GM did but doing this will likely hurt performance.

The other thing you can try doing is cleaning the throttle blade and IAC pintle and passage.
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pparker
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Report this Post04-05-2015 11:26 AM Click Here to See the Profile for pparkerClick Here to Email pparkerSend a Private Message to pparkerEdit/Delete MessageReply w/QuoteDirect Link to This Post
My problem is the opposite no noise when cold, as soon as it warms up noise starts.
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