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VVT Solenoid

moderate DIY~1h job

What it does

Modern engines can adjust their valve timing on the fly to make more power and better mileage. The VVT solenoid is the oil-controlled switch that makes that adjustment happen. It runs on clean engine oil — so when oil gets dirty or the solenoid screen clogs, it can't move the timing and the computer throws a timing code.

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DIY Cost

~$35

parts only

Shop Cost

~$200

parts + labor

Moderate DIY~1h job

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Frequently asked questions