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strange noise when warming up....

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Old Apr 6, 2006 | 01:08 AM
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Default strange noise when warming up....

im getting a whining noise when i start up my car after its been warmed up....i will start it up in the morning...drive it...park it and get in it 5 minutes later and this noise that sounds like like my engine is whining will last about 5 minutes then all of a sudden stop...

this one fella told me that its my "gulp valve"???

any help would be greatly appreciated...thanks
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Old Apr 6, 2006 | 01:35 AM
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AIR System???
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Old Apr 6, 2006 | 01:53 AM
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Mine does the same thing. I am looking into removing the !AIR system.
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Old Apr 6, 2006 | 02:05 AM
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can you guys give me a description of what the AIR system does?
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Old Apr 6, 2006 | 09:04 AM
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Originally Posted by toofless916
can you guys give me a description of what the AIR system does?

It injects air in the exaust to warm up the cats a little quicker.

The AIR pump whines on mine as well. As long as it still works, you don't need to worry about it unless the 20 Sec. noise bothers you.
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Old Apr 6, 2006 | 02:31 PM
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indeed it does bother me...interior noises dont but engine noises do...so is it some kinda valve that would do this? how costly would it be to replace the AIR system?
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Old Apr 6, 2006 | 02:57 PM
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Originally Posted by toofless916
indeed it does bother me...interior noises dont but engine noises do...so is it some kinda valve that would do this? how costly would it be to replace the AIR system?
There is no need to replace it, the whining noise means that the AIR system is working properly. If the noise bothers you so much, you can remove the AIR system and it will be gone. Then you need to make or buy some block off-plates for the headers/manifolds .

Last edited by stillremains; Apr 6, 2006 at 03:26 PM.
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Old Apr 6, 2006 | 04:49 PM
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well i dont want to remove it...just stop it from making that sound
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the only way to stop it from making that sound is to remove it. It is SUPPOSED to make that sound.
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Old Apr 6, 2006 | 09:16 PM
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ah didnt know it was supposed to make that sound...ok well then that explains everything i dont need to do then....thanks royalcrown!
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Old Apr 7, 2006 | 11:07 AM
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Wouldn't the air restrictor mod help? I'm seeing the same problem during warm ups, and it's annoying.
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Old Apr 7, 2006 | 10:58 PM
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I Had The Same Problem. It Is Annoying!! Check The Diverter Valves. There Cheap And Easy To Replace.
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