Engine. Knocking high pitchedDescription Rapid, multiple knocks in rapid succession that have a high pitch occurs only when the car is being driven at road speed and a sudden load is applied to the engine extra fuel is sent to the pistons.Most likely Problem Pre ignition.Fuel is igniting before the spark plug sparks due to carbon build up in the cylinder head.The valves are being forced to move in the wrong direction at the wrong time, which is damaging the pistons.Common Remedy Switch to premium fuel for 6 months after 6 months, switch back.Cabriolet Cooler Install Kit Oil Vw PassatCabriolet Cooler Install Kit Oil Vw Golf
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September 2018
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