<strong>Yahoo Message Number: 110294</strong><br/><br/>This air assembly is in my front run bay. This is where I connect a hose to air up tires, etc. The flow is down and I hear a high pitched noise when using it. I have no idea what else this does or why there is a red cap solenoid on it. Does any one know what this does and how I can repair it? Is it just a matter of removing it and cleaning...