Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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STRAILER
CAR REPAIR CONTRIBUTOR
54,189 POSTS
It doesn't have an actual valve, there are some hoses and there is a small hole and diaphragm located inside the intake manifold. the number 2 hose goes to the intake manifold. Here a a diagram of the hoses. Check out the images (Below). Please let us know what happens.