2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

S5 BAC Valve

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Old Jun 19, 2003 | 07:00 PM
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S5 BAC Valve

The S5 BAC valve is located below the intake correct, I saw it on the S4 and it was just like sitting there on mine, I see it beneath the intake, so is it easier to get to it if I just take the intake off?
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Old Jun 19, 2003 | 07:03 PM
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Just take off the intake snorkey (plastic acordian lookin thing) Then take off the two 10mm nuts holding on the bac. It shouldnt be that hard to get off and shouldnt require taking off the intake.
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Old Jun 19, 2003 | 07:26 PM
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Three nuts. One's hard to see.
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Old Jun 19, 2003 | 07:48 PM
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Mine only had two............... interesting
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Old Jun 19, 2003 | 08:06 PM
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Oops, it's Turbos that have three.

EDIT: picture in FSM shows two bolts and a nut.

Last edited by NZConvertible; Jun 19, 2003 at 08:09 PM.
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Old Jun 19, 2003 | 08:16 PM
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Its very possible mine was missing the bolt That or I lost it the first time I took it off and dont recall loosing it. Heh either way
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Old Jun 19, 2003 | 08:42 PM
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Yea, I meant that hose accordian thing by intake but wasnt sure what it was called, then all I gotta do is take off coolant hoses and such, Im having some rough idles whenever I turn on AC and step on brakes since both of those require air Ive narrowed it to the BAC valve being all stuffed up
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Old Jun 19, 2003 | 09:11 PM
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Oh man, I'm dumb sometimes.

I thought he said ACV. Ignore everything I said. It's two nuts.

Click here to read how to check the BAC valve. Do this before you remove it.
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Old Jun 19, 2003 | 09:24 PM
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Heh, the more I thought about it I realized there wasnt any other spot for a bolt But I wasnt going to say anything just incase I was wrong
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