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Primera VANOS Solenoid Issue

My 2007 Nissan Primera with a gasoline engine is throwing a check engine light, and the fuel consumption is bonkers. I've got 106138 km on the clock. After digging, it seems like the inlet VANOS mechanics are faulty. I'm guessing it's either a dodgy camshaft solenoid valve or a power supply issue. Anyone seen this before? It's also feeling sluggish, like it's lost power.

A 2007 Nissan Primera was experiencing a check engine light, poor fuel consumption, and sluggish performance, suspected to be due to a faulty inlet VANOS solenoid or power supply issue. The problem was confirmed to be a faulty VANOS solenoid, which was replaced by a mechanic. After the replacement and clearing of error codes, the vehicle's performance and fuel consumption returned to normal.

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4 comment(s)

I had a similar problem with my Primera, though I didn't do the troubleshooting myself. Based on the symptoms you've described, especially the check engine light and fuel consumption increase, I suspect you are correct about the VANOS solenoid. Have you checked for any oil sludge? I've read that can sometimes gunk things up and cause VANOS failure.

Oil sludge, huh? I hadn't thought of that. Where exactly should I be looking for this sludge? And if it is sludge, is it something I can clean myself, or am I looking at a bigger job involving the timing chain?

While it is theoretically possible to clean it yourself, it requires a high degree of mechanical competence and the correct tools. Given the potential for further damage, particularly to the timing chain, I would strongly recommend consulting a qualified workshop. Considering the symptoms and your diagnosis, it's likely the VANOS solenoid itself, or the wiring, but a proper inspection is crucial. A replacement at the workshop will likely cost you around 250€.

Thanks for the advice! I took it to a mechanic, and you were spot on. Turns out it was a faulty VANOS solenoid. They replaced it, cleared the error codes, and now she's running like a champ again. Fuel consumption is back to normal too. Cheers!

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NISSAN

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PRIMERA