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Blowing Sound?

This is a discussion on Blowing Sound? within the General Help forums, part of the LSx Technical Help Section category; There is a air sound coming from my engine area that sounds like when you have a hole in your ...

  1. #1
    Member Fade2Black's Avatar
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    Question Blowing Sound?

    There is a air sound coming from my engine area that sounds like when you have a hole in your tire and air is coming out.
    What could it be?
    Its only doing it when the car is on.

  2. #2
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    maybe a vacuum leak? If so your car should idle higher than normal

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    pewter
    99 trans am ws6

    check your pcv valve hose. my car used to make the same noise (a hissing sound). the hose a tear in it.

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    Senior Member 02ultraZ's Avatar
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    Prob a vacuum leak, check all your hoses, the car won't nec. idle higher depends on whats off. Another tip is to look for a shinier than normal peice of metal or plastic that hasn't been dirtied since there was a hose on it. One way i found a vacuum leak on my iroc was with a 3 foot peice of pvc pipe. Hold it up to your ear and slowly move the other end around your engine bay, this will help you pinpoint where the hissing is coming from.

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    Verry Nice! 1LE4ME's Avatar
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    Quote Originally Posted by 02ultraZ View Post
    Prob a vacuum leak, check all your hoses, the car won't nec. idle higher depends on whats off. Another tip is to look for a shinier than normal peice of metal or plastic that hasn't been dirtied since there was a hose on it. One way i found a vacuum leak on my iroc was with a 3 foot peice of pvc pipe. Hold it up to your ear and slowly move the other end around your engine bay, this will help you pinpoint where the hissing is coming from.
    You can also use an old piece of garden hose
    1998 Camaro Z28 1LE: TR Cam (plus normal cam install upgrades), Ceramic coated Pacesetter Headers, ORY, SLP Loudmouth (SOOOO Loud), B&M shifter, Lid, All free mods, Tubular Panhard, LS7 Clutch

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  6. #6
    Veteran 0rion's Avatar
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    check your a.i.r. hoses that go to each exhaust manifold and make sure you haven't sprung a leak in one of those. Does the noise go away after the car warms up?

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    Member Fade2Black's Avatar
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    Quote Originally Posted by 0rion View Post
    check your a.i.r. hoses that go to each exhaust manifold and make sure you haven't sprung a leak in one of those. Does the noise go away after the car warms up?
    You got it

    It sounded like that area so i was feeling around and i put my finger under that tube and ended up covering a hole on the under side of it.
    So I need a new one or is there a way I can seal it?
    and is it really bad for the car to drive it like this? it probably effects gas miles but I only have to drive it like this until the end of the week

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    pewter
    99 trans am ws6

    thats the exact same spot that my hose hada tear in it. i cut off a small piece of leftover hose i found. on your left hand side is where the pcv valve is. the small hose goes attached the this valve

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    Member Fade2Black's Avatar
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    is that sealed in place or can i pull it out...

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    Junior Member FatTom's Avatar
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    Perfect picture! This is exactly what I've found today. What is it called? Can I just pick up one of these at AutoZone and replace it easily myself? Could this be what has caused my SES light to come on?

    Any help?
    Thanks,
    Tom

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    That guy thearborbarber's Avatar
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