Go get a can of the sea foam spray. Follow the instructions. And add a regular can of sea foam to 10 gallons of gas in the tank. Drive it hard until the gas is gone. If that doesn't unstick the valve find someone who sells Amsoil. They have an additive to put in your oil That will clean the valves and lifters. Run it for 20 minutes then change the oil.

 

Does the sea foam spry go in a vacuum hose?? I have put a bottle of sea foam in the tank and a bottle in the oil... nothing??

 

The spray can has very detailed instructions and there is a you tube video. Spray it in your intake. The entire can while revving the engine then turn it off for 20 minutes. Start it back up and drive it hard. The spray can has a straw you can insert into the intake. Don't spray it through the mass air flow sensor.