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Vacuum Noise


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#1 sp5368

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Posted 08 May 2005 - 08:53 PM

I can hear a hissing sound and I think it is coming from a vacuum check valve.Is this possible and If so where can I buy one. I did the hose up to the ear thing and when I put it near the check valve I can hear the air should I be able to hear that

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#2 T5BRICK

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Posted 08 May 2005 - 09:02 PM

QUOTE(sp5368 @ May 8 2005, 01:53 PM)
I can hear a hissing sound  and I think it is coming from a vacuum check valve.Is this possible and If so where can I buy one. I did the hose up to the ear thing and when I put it near the check valve I can hear the air should I be able to hear that
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where is this vacuum check valve you are speaking of?
'06 Mazda3

#3 sp5368

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Posted 08 May 2005 - 09:24 PM

There are 2 and they both come off the same line off the intake manifold

Black 1997 850 Glt . Upsolute chip 14psi 16T 3" downpipe 2.5'' exhaust magnaflow .Quickbrick end links. K&N. Est springs . Bilstien TC shocks . Ipd rear sway bar. Samco/HoseTechniques Hoses . 215/45/17 Perelli P Zero . Nero ms . 17" Sport Edition wheels. Most important Covercraft weathershield car cover

#4 MrWinkey

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Posted 08 May 2005 - 11:20 PM

Mist carb cleaner around the suspected area and see if the idle changes
"SMOKE TROUT NOT CRACK"




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