Kalina oil pressure sensor
Content
The oil pressure sensor on Kalina is also called the emergency oil pressure sensor. It does not indicate the pressure at which the oil is in the engine. Its main task is to turn on the emergency oil pressure light on the dashboard if the oil pressure in the engine is critically low. This means that it is time to change the oil or its level has dropped below the minimum.
The emergency oil pressure sensor may fail. In this case, the oil pressure sensor (DDM) is out of order. How can this be checked?
Oil pressure sensor on Kalina 8kl
The CDM of the Kalinovsky 8-valve engine is located at the rear of the engine, just above the exhaust manifold of the first cylinder. How to check its performance? We unscrew the sensor and screw the pressure gauge in its place. We start the engine. At idle, the oil pressure should be around 2 bar. At maximum speed - 5-6 bar. If the sensor shows these numbers and the dash light stays on, the oil pressure sensor is faulty and needs to be replaced.
Naturally, before such a check, you need to make sure that high-quality oil is poured into it, and its level is between the minimum and maximum strips on the dipstick.
Oil leak from under the oil pressure sensor
The second common malfunction is oil leakage under the sensor. In this case, the exhaust manifold of the 1st cylinder, the upper part of the pump, the left side of the engine protection will be in oil. The sensor itself and the cable connecting it will also be in oil.
If you find an oil leak in the area of \u99b\u100bthe first cylinder, make sure that it is not a camshaft, crankshaft oil seal, a leak under the valve cover gasket or much worse than the usual cylinder head, then in XNUMX cases out of XNUMX, the oil pressure sensor is at fault.
We cleaned all the drips, installed a new DDM and watched. If there are no more leaks, you did everything right.
Not all motorists know what an oil pressure sensor (DDM) is, as a rule, they get acquainted with it after the oil pressure indicator lights up on the dashboard and does not go out for a long time. So any conscientious car owner has a lot of questions and unpleasant forebodings. Some people prefer to immediately contact the service station, while others begin to look for the cause on their own. If you belong to the second type of people, then this article will be useful to you, because in it we will talk about how to check the oil pressure sensor and how to replace it using the example of Lada Kalina.
First of all, you should not fall into despair and draw hasty conclusions, the emergency oil pressure light really indicates a critical oil level in the system and a pressure drop, but it is not a fact that this is the reason. It happens that the sensor itself fails and just “lies”. If you do not realize this in time and do not find out who is right and who is not, you can really make serious “acts”.
What is an oil pressure sensor and what does it consist of?
The sensor consists of:
- Body;
- Membrane measuring;
- transmission mechanism.
How does the oil pressure sensor work?
The membrane bends and takes position depending on the pressure in the oil system at that moment, closing or opening electrical contacts.
Before checking the pressure sensor, make sure that the oil level, as well as the oil filter, is normal. Check for leaks in the motor housing. If everything is in order, you can proceed to check the sensor.
How to check DDM?
As a rule, what is associated with pressure is usually checked with a pressure gauge. Screw in the pressure gauge instead of the pressure gauge and start the engine. At idle, the pressure gauge should show a pressure of 0,65 kgf / cm2 or more, we can conclude that the pressure is normal, but there is no pressure sensor, which means the oil pressure sensor needs to be replaced urgently.
If you didn’t have a pressure gauge at hand and somewhere in the middle of the route the oil pressure light came on, you can check the pressure sensor in another way. To do this, unscrew the sensor and turn the starter without starting the engine. If, during the rotation of the starter, oil splashes or spills out of the socket where the sensor was installed, we also conclude that the sensor is faulty and must be replaced.
How to replace the oil pressure sensor Lada Kalina with your own hands
If, after the above checks, you conclude that the sensor is not working properly and needs to be replaced, additional instructions will help you get the job done.
Replacing the oil pressure sensor is a simple and easy procedure that can be done at home.
From the tool you will need: the key to "21".
1. First of all, you need to remove the decorative plastic cover from the motor.
2. The Kalina oil pressure sensor is located at the rear of the engine, it is screwed clockwise into the cylinder head sleeve.
3. While pressing the clamps on the box, disconnect the cable box from the DDM.
4. Use the key to "21" to unscrew the sensor.
5. Prepare the new pressure transducer for installation and install it in the socket.
6. Tighten everything properly, replace the cable block, install the decorative cover and check if the problem persists. If, after starting, the light went out after a few seconds, we can conclude that the malfunction was in the DDM, which means that its replacement was not in vain.
Where is the oil pressure sensor in the photo of viburnum
Sometimes it happens that on the dashboard of a car, at idle or immediately after starting the engine, the oil pressure sensor indicator lights up. It is unlikely that it will be possible to determine the cause without opening the hood; In addition, there may be several reasons why the oil pressure lamp lights up. With certainty, only one thing in the engine is 100% something out of order or out of order. In this article I will try to tell you about all the possible causes of such an unpleasant phenomenon as the oil pressure sensor light on, as well as methods and ways to eliminate possible problems. The oil pressure light is a kind of warning or, in extreme cases, confirmation that something is wrong with the engine. Among the possible reasons for this phenomenon may be.
Be that as it may, the reason, in fact, does not play a significant role, and from the fact that you find the culprit of this malfunction, you are unlikely to feel better. You need to understand that there is a problem and it needs to be addressed. The main thing in this matter is to detect the malfunction itself, which caused the pressure lamp to light up, and to carry out work to eliminate it as soon as possible, otherwise the consequences can be much more global and more complicated. And so, to your attention, the main reasons why the oil pressure sensor may indicate a malfunction.
Low oil level in the sump. 1. Low oil level in the sump is perhaps one of the most common reasons why the oil pressure light comes on. With regular operation of the car, it is necessary to constantly monitor the oil level, as well as the absence of leaks in the crankcase. Any oil stain, even a minor one, in a permanently parked car should be a cause for concern.
Lada Kalina. The oil pressure sensor came on.
However, it should not be overlooked that a drop in oil level can also occur in a serviceable car.
The second possible reason why the oil pressure lamp may light up may be the use of low-quality or non-original oil filters. A certain amount of oil must remain in the oil filter even after the engine has stopped completely. This is necessary in order to in no case create the so-called “engine oil starvation” effect.
It is this unpleasant and dangerous characteristic that low-quality oil filters have, since they do not have the function of holding the oil inside the filter, so it flows freely into the crankcase.
Faulty oil pressure sensor wiring may cause the oil pressure light to come on. The oil pressure indicator, located on the dashboard, depends on the oil pressure sensor and works when something is wrong with the pressure. They are connected by cable. If the oil pressure is below the set norm, the sensor closes the bulb to ground.
After the pressure returns to normal or rises to the set level, the sensor contacts open and the lamp goes out. However, if the oil pressure sensor is faulty, the light does not go out or only comes on when the pressure changes, such as during regasification.
The oil pressure light may also come on after the relief valve has failed. If the oil pressure in the system is very low, a good pressure reducing valve should be in the closed position. If a valve sticks or sticks open, the system cannot be pressurized, causing the oil pressure light to come on.
5. If the oil pump screen is clogged, the oil pressure gauge will indicate low pressure. With the help of the oil receiving grid, the oil pump and the engine itself are protected from the ingress of large particles on the working surfaces. Dirt, metal chips and other unwanted elements act as a rough abrasive on the surface of all parts.
If the oil is clean, without any contaminants, it passes freely through the screen, while the oil pressure sensor is in a “quiet state”, symbolizing the normal operation of the engine. But when the oil is contaminated and does not pass well through the filter, the system is not able to create the necessary pressure for normal operation. After the engine warms up, the oil liquefies and passes through the mesh much easier.
To install this malfunction option, you can only remove the oil pan.
The oil pressure sensor diagnoses the problem with a warning light if the oil pump fails.
If the oil pump cannot provide the pressure required for normal lubrication, the oil pressure switch contacts close and the oil pressure indicator on the dashboard indicates a malfunction. After the oil pressure test is completed, the oil pump can be checked. To do this, you will need to remove the oil pan. It's all for today. I hope the article was useful to you and will help you diagnose the problem yourself if the oil pressure sensor light comes on.
