I hear some loud valve noise in my 06 hybrid and want to check the timing

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. First, do not continue driving the vehicle or running the engine, as damage may be occurring -- and you'll want to avoid that if possible. Check engine oil level first - is it full and clean? If yes, did you recently have an oil and filter change performed? Do you know if a quality filter was used, such as a genuine Toyota one? Sometimes a valve problem in an aftermarket filter can cause oil flow concerns. Other than that, some hands on testing of your engine will be needed. Have your vehicle evaluated by a shop hear you before driving further. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.