Does a VVT have a timing belt?
Variable Valve Timing (VVT) is a technology that’s used on many late model engines to improve fuel economy, idle smoothness, emissions and performance. Ideally, valve timing should change with engine speed and load like ignition timing does. But with a standard cam drive (belt, chain or gears), that is not possible.
What is the advantage of variable valve timing?
VVT controls the flow of air and exhaust Engine valves control the intake of fresh air and fuel, and the exhaust of combustion gases. VVT and lift systems adjust the timing of the valves to match the operating conditions of the engine. This improves efficiency over a wide range of engine operating speeds.
Why is my variable valve timing sensor not working?
Any malfunction here can cause wastage of fuel or dip in performance. If you notice decreased fuel economy, chances are that the variable valve timing sensor or some other part of the VVT system is failing.
How does the variable valve timing ( VVT ) system work?
Almost all modern cars use VVT technology to improve their performance and fuel economy. The VVT solenoid helps engines change their valve timing, ensuring that the performance is at its top without losing driveability on lower RPMs. Electronic principles of electromagnetism in the form of a solenoid valve control the oil flow to the camshafts.
Why are variable valve timing solenoids so important?
Variable Valve Timing (VVT) solenoids are one of the greatest innovations in the automotive industry. They help combustion engines to increase performance and increase efficiency. Unfortunately, these VVT solenoids can also fail, which can result in some expensive repairs.
Can a check engine light be a VVT fault?
So, this can hurt engine performance; fuel economy and emissions. Also, turning on the check engine light; setting a (VVT)-related fault code. Consequently, any codes could be the result of; a bad cam phaser, oil flow control valve or wiring fault. So, don’t jump to any conclusions; regarding the variable valve timing (VVT) system.
Almost all modern cars use VVT technology to improve their performance and fuel economy. The VVT solenoid helps engines change their valve timing, ensuring that the performance is at its top without losing driveability on lower RPMs. Electronic principles of electromagnetism in the form of a solenoid valve control the oil flow to the camshafts.
Any malfunction here can cause wastage of fuel or dip in performance. If you notice decreased fuel economy, chances are that the variable valve timing sensor or some other part of the VVT system is failing.
What happens if the timing belt fails on a car?
Due to the complexities of the valve timing and internal engine clearances, these engines will most likely bend valves if the belt fails, or if the belt is installed incorrectly. For these reasons, I would recommend that you read through this article and the service manual description for this job very carefully before starting this repair.
How do you remove a variable timing belt?
Using a suitable tool to hold the crankshaft damper, loosen, but don’t remove, the bolt and pulley at this time. In order to get the engine in the correct position for removing the timing belt, the tension on the variable timing must be removed to allow the engine to be at actual TDC.