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willistern40

Urvan air valve issue

My 2010 Nissan Urvan with a gasoline engine has a check engine light that keeps coming on. The OBD scan points to an air valve issue. I've checked the air intake, throttle body, and air supply hoses. I suspect the hose connection from the pump to the valve is defective. Anyone else experience this?

Summary of the thread

A 2010 Nissan Urvan with a gasoline engine had a persistent check engine light, with an OBD scan indicating an air valve issue. The owner suspected a defective hose connection from the pump to the valve after checking the air intake, throttle body, and air supply hoses. A similar experience shared by another individual suggested checking for small cracks in hose connections that could cause vacuum leaks. The problem was resolved by replacing the defective hose connection, which eliminated the check engine light.

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4 comment(s)

sarah_loewe21

I had a similar issue with my old Ford Mondeo. Check the hose connections thoroughly. A small crack can cause a big vacuum leak and trigger the check engine light.

willistern40 (community.author)

Thanks! Did you resolve it yourself, or did you have to take it to a shop? Any idea what the repair cost was?

sarah_loewe21

I initially tried to fix it myself, but the leak was hard to pinpoint. Eventually, I took it to a workshop. They identified a split in the hose and replaced it. I would suggest you do the same.

willistern40 (community.author)

Thanks. I took the Urvan to a trusted local shop, and you were spot on! It was indeed a defective hose connection from the pump to the valve. They replaced it, and the check engine light is gone. Final repair cost was 175€.

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NISSAN

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URVAN