Vacuum Check valve location?

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10-01-2012, 09:28 PM

Pbcrazy

2nd Gear

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Location: Warrenton VA

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Vacuum Check valve location?

So I'm going to replace my vacuum check valve as I think it might be part of the problem for my starting issues, I found some on eBay for about $10, but where is it located? It's a 98.5 A4 1.8TQ

10-01-2012, 09:30 PM

meh.

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Join Date: Aug 2012

Location: Northern California

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By the airbox. Take off the top cover and it should be near the back of the airbox.

10-01-2012, 09:38 PM

Pbcrazy

2nd Gear

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Ok so take off the air box (passenger side infront of firewall correct?)top and ill see it?

10-01-2012, 09:55 PM

meh.

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Location: Northern California

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You should see this

10-02-2012, 06:25 AM

Pbcrazy

2nd Gear

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Ok cool thanks!

10-02-2012, 10:45 AM

MetalMan

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There are an additional 2 check valves near/under the intake manifold. And there's a slightly larger black check valve at the back of the intake manifold for the brake booster.