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Variable Valve Timing Control Solenoid Replacement
What is a variable valve timing solenoid?
Variable valve timing systems have several components required to operate, perhaps the timing control solenoid is the most important. The variable valve timing control solenoid is responsible for engaging and disengaging simple variable valve timing systems, and will constantly adjust more intricate systems. In both systems, the result is more power, and better fuel economy.
How does the variable valve timing solenoid work?
The variable valve timing control solenoid is electrically controlled by the power management computer or the electronic control unit. When condition are met, the computer will actuate the solenoid, and valve timing will be retarded or advanced. Many solenoids accomplish this by directing and limiting oil pressure to the solenoid.
Not following the manufactures recommendation for when to change the oil and/or what type should be used can cause problems with the Variable Valve Timing Control Solenoid.
Land Rover Discovery Variable Valve Timing Control Solenoid Replacement Cost
The average cost for a Land Rover Discovery Variable Valve Timing Control Solenoid Replacement is between $1,597 and $1,705.
Labor costs are estimated between $232 and $340 while parts are typically priced around $1,365.
This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
For a more accurate estimate based on your location, use our Fair Price Estimator below.
What are the symptoms related to a bad variable valve timing solenoid?
The check engine light, and loss of power are the most typical symptoms of the variable valve timing control solenoid failure. There may be a leak around the solenoid, but this generally will not cause failure. When the solenoid fails, the driver feels a loss of power because the timing is no longer advancing with engine speed. The less fortunate form of failure is from the solenoid advancing at all times. This will lead the engine speed rising and falling at idle, vibrations at idle, and possible misfires at idle. In any case of a failed variable valve timing solenoid, there will be poor fuel mileage until the issue is corrected, because the engine can no longer adjust for maximum economy while cruising.
Can I drive with a variable valve timing solenoid problem?
As most vehicles before variable valve timing, the vehicle may be driven without repairing the variable valve timing control solenoid. The engine performance symptoms noted will be present until the repair is completed, but the engine should not suffer failure due to loss of variable valve timing. If the variable valve timing control solenoid has failed, and causes the timing to remain advanced, the vehicle may have difficulty starting, or not start at all. In these cases, the solenoid should be replaced before the vehicle is operated.
How often do variable valve timing solenoids need to be replaced?
Variable valve timing components fail randomly. There is no great way to recommend when they fail, because replacement occurs for nearly all variable valve timing solenoids across a wide range of mileages. The solenoids are not designed to fail, they typically fail because of dirty oil, or oil that has broken down, and is not as thick as it once was. Regular maintenance according to the manufacturer specification for driving conditions will help ensure the variable valve timing control solenoid is preserved.
RepairPal Recommendations for variable valve timing solenoid issues
So many of these solenoids look alike, regardless of make and model. However, they are built to different specifications, and in most cases are not interchangeable. Using the part number written on the old solenoid, or obtaining the part number using the vehicle identification number (VIN) is the best way to ensure the proper part is purchased the first time.
What to look out for when dealing with variable valve timing solenoid issues
Second hand solenoids and solenoids from unknown vendors are typically not reliable. There are many solenoids that are built to fit the vehicle, but very few of those are built to the original manufacturer's standard. The aftermarket responded to the cost of these solenoids, and began producing copies as cheaply as possible, and sell them, without branding, through many online retailers. Again, if the vendor is unknown, it is probably not built to OEM standards.
Can I replace the variable valve timing solenoid myself?
Replacing the variable valve timing control solenoid switch is very easy on most models, and only requires removing the solenoid and moving one electrical connector. If unsure of the sensor location, or if you are unable to diagnose the vehicle, have a professional technician service the variable valve timing solenoid.
Land Rover Discovery Variable Valve Timing Control Solenoid Replacement Cost by Year
The average cost for a Land Rover Discovery Variable Valve Timing Control Solenoid Replacement is between $1,597 and $1,705 but can vary from car to car.
