3 Symptoms of a Bad Oil Control Valve in Your Vehicle


In this article we are going to discuss about one part of the variable valve timing system in your vehicle, This part called oil control valve. so you will find the useful information about oil control valve working principle and the failure symptoms.

What is Oil Control Valve?

Oil control valve is one of the important components in every special tech car. This valve is usually found on cars with variable valve timing system technology. Where the existence of the system aims to control the performance of car’s machines that utilize two methods of retard methods combined with advanced camshaft angle method. The oil control valve, in this case is controlled by the engine control module or commonly referred to as ECM. The oil control valve is responsible for opening and closing the camshaft at the right time. In general, oil control valve has several functions that are very vital which are save fuel usage, reduces gas emissions generated by the vehicle and improve engine performance with the fuel as efficiently as possible. Next we will discuss 3 symptoms of a bad oil control valve so that we can easily detect malfunctions in our vehicles by knowing this information.

3 Symptoms of a Bad Oil Control Valve

Here are some of the symptoms that can show up on your car’s performance when your oil control valve malfunction:

1. Poor fuel economy –  The purposes of variable variable valve timing is to make sure that the valves open and also close at the right time to boost engine performance as well as to reduce the consumption of the fuel. If the VVT solenoid stops working, the whole system may be compromised,in which may result in intake as well as exhaust valves opening and closing at the wrong time. It is mainly the causes of the fuel economy to drastically reduced.

2. Rough engine idle – The next thing that you need to consider is the VVT system on your vehicle. This system will automatically be activated and functioning when your car’s RPM is higher than normal or there is an additional burden on your car for example like passing the uphill road. If the VVT solenoid in your car is impaired, it can lead the engine to the idle rough that affected the RPM on your vehicle which will tend to be fluctuate which can directly result in a reduction of power generated by your car. Therefore make sure that your vehicle has a regular service period at a certified service area.

3. Slow Acceleration – Due to a poor system in oil usage settings this will directly affect the performance of your car’s acceleration. When you first turned on the machine, your vehicle will not be able to reach speeds above 60 km / hour in a short time. This is also a sign that there is a disturbance on you vehicle’s control oil valve.

So there are the 3 symptoms of a bad oil control valve that can damage your car’s performance. Now the question that arises is how all these things can happen? The main cause is the replacement of vehicle oil that is always not right on the time. This oil change is usually done every 3 to 6 months or every 5000 miles. This must be done because if the old oil is not replaced immediately it will form an impurities that can cause a blockage, which can prevent the entry of the oil into the camshaft so it can caused the damage to the control oil valve.

Read also: 3 Symptoms of a Bad Mass Air Flow Meter

So the article that discusses the 3 symptoms of a bad oil control valve, may be useful for you to broaden the horizons in the automotive field.


1 comment

  1. Larry 23 July, 2019 at 19:12 Reply

    I have a 2015 hyundai Atlanta it will not turn over the starter will engaged but the engine won’t turn over . I put it on a read and it came up as poo14 the vvt solution intakeif I replace would this help turn over the engine

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