Ford 4.6L & 5.4L 3v Engines: Sticking VCT Solenoids Explained P0011 P0012 FordTechMakuloco. Decline in Fuel Efficiency. 4. The Variable Valve Timing (VVT) Solenoid has been engineered to adjust the valve timing automatically in the engine depending on how the engine is running and the load the engine is under. 3. It allows water to pass through a particular tube, and it is therefore essential to the correct functioning of the system. The only time it will be inspected is if you are experiencing problems with the VVT system, or the Check Engine light illuminates and the computer provides a camshaft position or VVT system related code. How to check if a vct solenoid is bad? The only time it will be inspected is if you are experiencing problems with the VVT system, or the Check Engine light illuminates and the computer provides a camshaft position or VVT system related code. This is the thing about modern cars that the ECU or engine control unit starts to warn you as soon as it finds some ... 2.
Check Engine Light On. Reduction in Fuel Economy. When the VVT solenoid activates, oil is sent to lubricate the variable valve timing chain and gear assembly. This topic contains 12 replies, has 8 voices, and was last updated by Mike 4 years, 1 month ago .
Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › How to check if a vct solenoid is bad? Variable Valve … How to determine if the Variable Valve Timing (VVT) System is malfunctioning? Our recommendation: Because the solenoid is located at the camshaft (near the VVT switch), it cannot be inspected on a regular basis. Dirty Engine Oil. Now that you have confirmed the workings of your car battery, the next thing you should do is to know how much voltage your battery is supplying the solenoid, the amount of voltage would help to understand if the fault is with the connection between the solenoid and the battery. A poor performing or failed Variable Valve Timing (VVT) system will result in poor engine idle/stalling, increased engine noise and reduced power output. If the VVT solenoid fails or is blocked, the lack of proper lubrication can cause the timing chain and gear to prematurely wear or break entirely. Engine oil with many impurities lowers its viscosity, which leads to clogging of the VVT solenoid, which ultimately affects the chain and gearbox. Our recommendation: Because the solenoid is located at the camshaft (near the VVT switch), it cannot be inspected on a regular basis. Symptoms of a Bad or Failing Variable Valve Timing Solenoid. Solenoid valves are an essential part of any timed electronic water system. VVT solenoid manages the opening and closing times of the valves to ensure that efficient fuel consumption is maintained.