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Old 01-09-2012, 11:26 PM   #1
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Weird noise when start up?

Just bought a 98 cobra, all stock w/ 117,xxx miles, & when I start it up it makes a weird kind of like hissing maybe noise for a while then goes away after a few min of driving. I'm gona try to listen better tomorrow. Any one ever have this problem?
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Old 01-10-2012, 03:37 PM   #2
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Does it only last about 2 minutes than stop? And what side of the car do you hear it? Could be the air pump.
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Old 01-10-2012, 08:09 PM   #3
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It seems like it only does it a few times after start up. It sounds like air pssss..... Psssss..... Psssss...
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Old 01-10-2012, 08:15 PM   #4
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Re: Weird noise when start up?

does the car still run ok during that time? and is it a constant noise or intermittent?
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Old 01-10-2012, 08:44 PM   #5
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Yes it still runs good & yes it's also intermittent, on off on off etc.
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Old 01-10-2012, 09:31 PM   #6
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Re: Weird noise when start up?

well I would say its the air pump than, and is probably normal but I would keep an eye on it.
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Old 01-10-2012, 11:08 PM   #7
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Okay thanks
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Old 01-11-2012, 01:39 AM   #8
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No problem
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Old 01-13-2012, 02:16 PM   #9
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Re: Weird noise when start up?

It's just the intake! My car does the same thing every time! Just needs to warm up! It's even louder if you have after market CAI.
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Old 01-13-2012, 06:25 PM   #10
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Ohh okay. Thanks
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