Why does the oil pressure light on the VAZ 2110 come on?

Help, this is a story. I bought a VAZ 2110 2001 car, took it and registered it, everything would be fine, but on the second day the oil pressure light came on, I decided to check the level - it was normal, but the color of the oil surprised me, it felt like it had not been changed since the car came out from the assembly line. I bought oil, filter, and flushing. I went to the service center for a replacement and didn’t get there - the car just stalled, wildly scared from towing the car home without starting (I thought the internal combustion engine would jam). My friends and I started taking it apart, washing and cleaning everything. And here’s the most interesting thing: I removed the pan to clean the oil receiver mesh and found small meth. chips in the tray, washed everything, cleaned it, collected it. I washed the internal combustion engine. Filled up with oil. The gasket has leaked from the pan. I took it off again and again there were shavings, but very little, I cleaned them again and collected them. I started it - everything is fine, but it warms up a little to 60-70 * the oil sensor blinks at idle, I stop giving it a little gas, and after 10 minutes of operation it generally lights up and burns and oil leaks from below.

I looked from all sides with a flashlight and found no leaks anywhere. It leaks only when the internal combustion engine is running and the sound is strange, not like before on the day of purchase. When I bought the car, the internal combustion engine worked like clockwork, you couldn’t even hear the work, although the previous owner had the car parked all winter and maybe more. PLEASE HELP ME WHAT SHOULD I DO?

Help, this is a story. I bought a VAZ 2110 2001 car, took it and registered it, everything would be fine, but on the second day the oil pressure light came on, I decided to check the level - it was normal, but the color of the oil surprised me, it felt like it had not been changed since the car came out from the assembly line. I bought oil, filter, and flushing. I went to the service center for a replacement and didn’t get there - the car just stalled, wildly scared from towing the car home without starting (I thought the internal combustion engine would jam). My friends and I started taking it apart, washing and cleaning everything. And here’s the most interesting thing: I removed the pan to clean the oil receiver mesh and found small meth. chips in the tray, washed everything, cleaned it, collected it. I washed the internal combustion engine. Filled up with oil. The gasket has leaked from the pan. I took it off again and again there were shavings, but very little, I cleaned them again and collected them. I started it - everything is fine, but it warms up a little to 60-70 * the oil sensor blinks at idle, I stop giving it a little gas, and after 10 minutes of operation it generally lights up and burns and oil leaks from below.

I looked from all sides with a flashlight and found no leaks anywhere. It leaks only when the internal combustion engine is running and the sound is strange, not like before on the day of purchase. When I bought the car, the internal combustion engine worked like clockwork, you couldn’t even hear the work, although the previous owner had the car parked all winter and maybe more. PLEASE HELP ME WHAT SHOULD I DO?

Dashboard with oil pressure light on

There are cases when on the dashboard of a car, immediately after starting the engine, as well as at idle speed, the oil pressure warning light on a VAZ 2110 suddenly lights up. At the same time, it is unlikely to be possible to find out the reason without opening the hood; moreover, there are several reasons for this If the oil pressure light on the VAZ 2110 comes on, you can be sure of only one thing - something has already failed in the engine of your car or is just beginning to fail.

VAZ 2110 instrument panel oiler

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When the oil light comes on, IMHO, when the oil pressure sensor is working,
it means the oil pressure in the engine is low.

Moreover, it does not always burn, but often.

- under what conditions? (cold engine at idle, hot engine at idle, at high speeds, during sharp maneuvers, when driving uphill or downhill.)

1. Oil (it has become too liquid. I heard about the instability of Lukoil oil, people don’t pin it) 2. Filter (oil) 3. Low oil level (maybe the dipstick is crooked?) 4. .

The oil can on the dashboard is burning. What does this mean?

To clarify, the light is not on the instrument panel (red - meaning low oil pressure), but on the dashboard to the left of the clock below the radio (yellow - I don’t know what that means). And it lights up very suspiciously. At some point it starts to burn stubbornly (turn the engine on and off - no use). At some point, it stops lighting up and may not be noticeable for several days. Moreover, it was not possible to find an obvious connection between the lighting of the light bulb and some external conditions (warm-up or cool-down engine, tilting or not tilting the car).

The oil level, as I already said, is normal, the oil was changed 6000 km ago.

In general, what should this light bulb mean? Options 2:

1. insufficient oil level (dipstick lying?) 2. excessive oil contamination (like on new BMWs - I honestly can’t believe that the 10 has this).

To clarify, the light is not on the instrument panel (red - meaning low oil pressure), but on the dashboard to the left of the clock below the radio (yellow - I don’t know what that means). And it lights up very suspiciously. At some point it starts to burn stubbornly (turn the engine on and off - no use). At some point, it stops lighting up and may not be noticeable for several days. Moreover, it was not possible to find an obvious connection between the lighting of the light bulb and some external conditions (warm-up or cool-down engine, tilting or not tilting the car).

The oil level, as I already said, is normal, the oil was changed 6000 km ago.

In general, what should this light bulb mean? Options 2:

1. insufficient oil level (dipstick lying?) 2. excessive oil contamination (like on new BMWs - I honestly can’t believe that the 10 has this).

If the right side of the car is higher than the left when parked, the oil level sensor usually triggers. Check the slope.

Source

Location and replacement

The sensor we are interested in is located on the camshaft cover; replacement occurs in the following sequence:

• Disconnect the connector (wires) from it
• We unscrew it using the key “21”
• We take out the sensor, make sure that its aluminum sealing ring comes out (it is disposable and must be replaced)
• Screw in the new pressure sensor

Before connecting wires to it:

• It is worth checking the condition of the contacts and cleaning them if necessary.
• Check the dust seal for integrity

Some very important and useful information

It is possible that after changing the sensor, lubricant may leak through the new sensor. You buy and install another one, if this one drips, look for a third one, of course, you will start to wonder what’s the matter? The answer is simple, this is due to defective sensors, which, oddly enough, are abundant on sale. Moreover, many people complain about lubricant leaking through the sensor. Even despite this, we advise you to visit a service station to diagnose the lubrication system, just in case. We conclude here, now you can deal with possible problems yourself, additionally watch the video.

Good afternoon, friends, Andrey Kulpanov is with you! We have already had a dialogue about when and how often it is necessary to update the oil in engines of various car brands. One of the indicators of this is the following fact - the oil pressure lamp lights up, and this can happen on both a cold and hot engine. In what cases this can happen, we will try to understand today’s topic.

The principle of operation of the warning lamp on the VAZ 2110

The warning lamp for emergency oil pressure in VAZ 2110 cars is located in the lower left corner of the instrument panel. It is easily identified by its characteristic icon in the shape of an oil can.

The oil pressure warning lamp is located in the lower left corner of the panel

The light works in tandem with an emergency pressure sensor, which is installed in the cylinder head and connected to the oil line. These two elements are combined into a simple electrical circuit similar to a test “pilot lamp”, where the sensor acts as a switch. The design of the sensor is also very simple. It consists of a housing with a fitting and a membrane with a contact connected to the on-board network of the machine.

Verdict

The emergency oil pressure lamp lights up in the following cases:

• Immediately after replacing the lubricant, this is not a malfunction (then it should go out).
• There is not enough oil in the crankcase.
• I shorted the wire that goes to the sensor to ground.
• The oil system sensor or filter is clogged.
• The filter element is poorly tightened or made using counterfeit technology.
• The sensor for measuring the lubricant pressure in the unit is faulty.
• Problems with the condition of the engine lubrication system.

On the instrument panel in the interior of any car there are light bulbs, the purpose of which is to signal the driver about the presence of certain malfunctions. Each of the indicator lights is connected to its own sensor, which transmits data about a problem or failure that has arisen. In this way, the driver is informed about the occurrence of failures and breakdowns in various vehicle systems. The oil pressure sensor is responsible for the level of lubrication of the rubbing parts of the engine unit. However, for what reasons the oil pressure light may come on and what needs to be done in a particular case, not every driver knows.

Why does the emergency pressure indicator light come on?

If you notice that the lamp is constantly on or turns on periodically during operation of the power unit, rush to carry out diagnostics and find a possible malfunction. It is better not to continue driving until it is eliminated. The reasons for the constant or periodic burning of the control lamp may be:

• insufficient level of lubrication in the engine, as well as low-quality (used up or not corresponding to the viscosity class) oil;
• break or short circuit in the emergency pressure sensor circuit;
• sensor malfunction;
• oil filter clogged;
• clogging of the oil receiver strainer;
• malfunction of the oil pump or its pressure reducing valve;
• failure of the crankshaft liners.

Let's look at each of these problems in more detail.

Where is the oil pressure sensor in the VAZ - and how to change it?

The device itself is located on the roof of the camshaft.

The operating position of the oil pressure sensor is on the engine camshaft cover

It is easy to find and replace without the help of specialists. The sensor is replaced in the following order:

• It is necessary to disconnect the wire from the sensor.
• After this, using a 21 key, you will need to unscrew the sensor itself and pull it out.
• Important! The sensor must be pulled out along with the sealing ring!
• You need to insert a new device with a new ring into the vacant space.
• Check contacts and integrity of wires.
• Connect the wire coming from the control lamp.

Thus, there may be several reasons why the oil pressure lamp in the VAZ-2110 comes on. The most common are a drop in oil level due to leaks and sensor failure. In any case, the car owner must carefully monitor the condition of his engine and promptly carry out the necessary maintenance.

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Oil level and quality

The first thing you should do when the warning light comes on is check the lubricant level in the engine. To do this, we will use a special probe, which is provided in both eight-valve and sixteen-valve “ten” power units. Measurements should be made with the engine cooled down. If their result shows that the oil level is below the minimum, add it and check the operation of the sensor with the lamp.

Pay attention to the consistency of the oil as well. The further the car has passed since it was replaced, the thinner it is, and an oil pump designed for a certain viscosity will naturally be unable to create the necessary pressure. In such cases, the lamp usually comes on when the engine reaches operating temperature.

If the oil level is below the minimum, it must be added

Similar symptoms can be observed when using oils whose viscosity class is lower than that specified by the engine manufacturer. If you are not sure about the quality of the lubricant, it is better to replace it.

What to do if the oil pressure sensor lights up on any hot engine: initial diagnosis

Oil emulsion level

It doesn’t matter whether the oil pressure light is on at idle or at rpm, the first step is to check the oil level in the crankcase. Its deficiency can cause reduced pressure in the oil system, and the sensor records exactly this. This suggests that lubrication starvation is experienced by such important components as:

• Crankshaft bearings.
• Supports for the camshaft and turbocharger rotor.
• Hydraulic compensators.
• Phase regulators.
• Hydraulic belt tensioners.

There is no need to delay refilling. Critical wear and jamming of shafts can occur quickly, and the amount of repair costs will unpleasantly surprise you.

A few words about the location of the sensor

Before we begin describing the sensor verification algorithm, let's figure out where it is located. In eight-valve VAZ 2110 engines, the sensor is located on the rear side of the engine in the upper right part of the cylinder head (as viewed from inside the car). You won’t confuse it with anything, since there are no other devices there.

The sensor is located on the rear of the engine in the upper right part of the cylinder head.

In sixteen-valve “ten” power units, the sensor is located on the left side of the engine near the filler neck. The power cord going to the device will help you find your way faster.

The emergency oil pressure sensor is located next to the filler neck

Checking the emergency pressure sensor circuit

If the warning lamp turns on periodically, you should check the sensor's power cable. It often happens that its break or short to ground causes the oil can to flicker, especially while driving. The verification procedure is as follows:

1. Turn on the ignition (the lamp should be on).
2. Disconnect the power wire from the sensor (the lamp should go out).
3. If the lamp continues to light, the wire has a short to ground.

When the wire is disconnected from the sensor, the lamp should go out

A visual inspection of the wire and restoration of its damaged section will help solve the short circuit problem.

Alarm indication

Of course, now in almost all cars there is an emergency indication for a complete lack of pressure, this is known to us all - a “burning oil can”. If it does not go out for some time after starting, for example 10 - 20 seconds is one thing, it is almost always the fault of the oil filter. But if the lamp is constantly on, then this is already an alarm bell. Perhaps the oil pressure sensor has simply failed, or perhaps the oil pump has failed.

In any case, the emergency indication is very important, and I do not advise you to joke with it; nevertheless, this is fraught with a major overhaul of the engine.

Remember this rule, if the lamp comes on, then turn off the car and preferably immediately to a service station, either a tow truck, or in tow.

Sensor check

Engines of 2110 vehicles, regardless of their modification, are equipped with emergency pressure sensors of type MM 120, manufactured under catalog number 6022.3829.

Emergency oil pressure sensor type MM 120

Characteristics of the MM 120 sensor:

• rated voltage - 12 V;
• weight - 28 g;
• thread - M14x1.5;
• response pressure - 0.4±0.2 kgf/cm2;
• analogues - MM 120D, MM 120DM.

The emergency oil pressure sensors on the “tens”, as in principle on other VAZs, are very capricious devices and fail very often. Testing them at home is easy.

Tools and tools for checking:

• tire compressor or pump with pressure gauge;
• a piece of hose with an internal diameter of 10–12 mm and a length of 20–30 cm;
• 2 clamps;
• crosshead screwdriver;
• key for 21 or 22;
• car tester or control lamp with battery;
• dry rag.

The procedure for checking the sensor is as follows:

1. Disconnect the negative terminal from the battery.
2. We find the emergency pressure sensor on the engine.
3. Disconnect the power cable from the sensor.
4. Using a 21 or 22 wrench (the size of the sensor skirt may differ), unscrew the sensor from the cylinder head. In eight-valve engines, when unscrewing the sensor, a small amount of oil may leak out. If this happens, remove any stains with a rag.
5. We put one end of the hose onto the sensor fitting and clamp the connection with a clamp.
6. We put the other end of the hose on the fitting of the pump or compressor, and also fix it with a clamp.
7. We connect the tester probes or “control” wires to the contact terminal of the sensor and to its body so that the device under test acts as a switch. In the initial position, our “switch” is turned on, so the control lamp should be on and the tester should beep, indicating that the circuit is closed.
8. We begin to pump air, creating pressure in the sensor housing. According to the characteristics of the device, it should trigger when the pressure reaches 0.4±0.2 kgf/cm2. When the pressure rises to the desired value, the sensor should open the circuit and remain open until it drops.
9. The sensor has tripped - you need to reduce the air supply to the hose and wait until it closes the circuit again. At this moment it is important to record the pressure value. If it is close to 0.4 kgf/cm2, everything is in order with the sensor.

The sensor should trigger when the pressure drops to 0.4 kgf/cm2

You can, of course, not waste your time checking it, but simply buy and install a new sensor. Moreover, it costs about 70 rubles.

Video: replacing the emergency oil pressure sensor

Pressure in the lubrication system of domestic and foreign cars

Each car model has its own pressure in the lubrication system. Below are some examples:

• VAZ 2106 – at idle speed 0.2 kgf/cm
  2

  . At 4500 rpm - 4.5 kgf/cm

  2

  ;

• 16 valve VAZ 2109 and Priora - at idle 0.1 kgf/cm
  2

  . At 5000 rpm – 6 – 6.4 kgf/cm

  2

  ;

• On cars with a ZMZ 405 engine - idle speed 0.4 kgf/cm
  2

  . With loads from 2 kgf/cm

  2

  and more;

• 8 valve Renault Logan - at idle 0.3 and at 5000 rpm 4 - 4.6 kgf/cm
  2

  respectively.

• Mercedes Vito with a 2.2 liter diesel engine - at idle - 0.3 kgf/cm
  2

  , under load of 3 and above.

• Chevrolet Lacetti 1.4 – idle – 0.6 kgf/cm
  2

  , at 3000 rpm – from 3 and above.

Oil filter

A clogged and worn oil filter invariably leads to a decrease in oil pressure in the system. In a serviceable, correctly selected and installed filter, a certain amount of lubricant always remains after the engine is stopped. This is provided for by the design of the device. If the filter is worn out, or does not correspond to the engine modification, oil will flow from it into the crankcase, causing a “starvation” effect in the engine.

When the filter element becomes clogged, its throughput capacity decreases. In this case, the pump operates in normal mode, however, the amount of oil entering the system is reduced. Naturally, this leads to a drop in pressure. If you are unsure whether the installed filter matches the engine parameters, or the car with it has traveled more than 7 thousand km, replace it. A new filter unit for a VAZ 2110 will cost you about 200 rubles.

Important: it is advisable to replace the filter simultaneously with changing the lubricant. When installing a new filter, be sure to fill the housing with fresh oil. This will prevent the appearance of air locks in the system and protect the engine from oil starvation.

When replacing the oil filter, be sure to fill the filter housing with fresh oil.

After changing the oil, the oil pressure light is on: reasons

Indeed, in some cases, immediately after changing the oil, an indicator in the form of an oil can lights up. The inclusion of a red icon can mean both simple and solvable problems, and more complex ones.

In particular, if the oil pressure light comes on immediately after the car's ignition is turned on, this may indicate that insufficient oil was poured into the engine. It is worth measuring the oil level again and adding the required amount of working fluid.

It is also quite likely that the reason is the use of low-quality oil and filter. When choosing an oil filter for your car, you should pay special attention to the brand of the product. It is best to use the filters recommended by your vehicle's manufacturer. It is quite possible that when changing the oil, a low-quality or simply defective filter was installed that cannot hold oil. In this case, repeated replacement of the fluid and filter cannot be avoided.

High-quality components are ways to eliminate engine problems for a long time

A more serious problem will be a malfunction of the oil pump. As a rule, when flushing the engine before changing the oil, it experiences greater pressure, and therefore if the pump was already in poor condition, it is quite possible that after changing the oil it will fail. It is quite difficult to replace this spare part yourself - you will have to remove the engine sump, so it is advisable to contact a service station.

Pressure check

Further search for possible reasons why the warning light comes on requires partial or complete disassembly of the engine. To make sure that the problem is really deep, you need to measure the oil pressure in the system. You can do this yourself if you have a special pressure gauge. And if not, you can buy it. It costs about 300 rubles. In addition to the pressure gauge, you will also need a 21 or 22 wrench and a dry rag.

1. Disconnect the negative terminal from the battery.
2. Disconnect the power cable from the sensor.
3. Using a 21 (22) key, unscrew the sensor.
4. In its place we screw in the pressure gauge fitting.
5. We start the engine and warm it up (required) to operating temperature.
6. We measure the pressure at idle speed. It should be in the range of 1.5–2 kgf/cm2.
7. Raise the speed to 5000 rpm. The pressure should rise to at least 4.5 kgf/cm2.

The oil pressure at idle speed should remain 1.5–2 kgf/cm2

Lada VAZ-2110 (2111, 2112). Insufficient oil pressure (low oil pressure indicator light is on)

Causes of drop in oil pressure

There is a light on the instrument panel that indicates emergency oil pressure in the engine. When it lights up, it is a clear sign of a problem. We'll tell you what to do if the oil pressure light comes on and how to fix the problem.

The oil check light can come on for two different reasons: either low oil pressure or low oil level. But what exactly does the oil light on the dashboard mean, only the operating instructions will help you find out. It will help us that, as a rule, budget cars do not have a low oil level indicator, but only a low oil pressure indicator.

Insufficient oil pressure

If the oil light comes on, this means insufficient oil pressure in the engine. As a rule, it lights up only for a few seconds and does not pose a great threat to the engine. For example, it can light up when the car rolls heavily during a turn or during a cold start in winter.

If the low oil pressure light comes on due to a low oil level, then this level, as a rule, is already critically low. First of all, when the oil pressure light comes on, check for the presence of engine oil. If the oil level is below normal, then this is the reason for this lamp to light up. This problem can be solved simply - you need to add oil to the required level. If the light goes out, we rejoice, and do not forget to add oil on time, otherwise this could result in serious problems.

If the oil pressure light is on, but the oil level on the dipstick is fine, then another reason why the indicator could light up is a failed oil pump. It does not do its job of ensuring sufficient oil circulation in the engine lubrication system.

In any case, if the oil pressure or low oil level light comes on, the car must be stopped immediately by pulling to the side of the road or to a safer place and turning off. Why do you need to stop right away? Because if the oil in the engine has depleted significantly, then the engine may stop and break down, with the prospect of very expensive repairs. Don't forget that oil is very important to keep your engine running. Without oil, the engine will fail very quickly - sometimes in just a few minutes of operation.

This situation also occurs when the engine oil is changed to new one. After the first start, the oil pressure light may come on. If the oil is of good quality, it should go out within 10-20 seconds. If it does not go out, the reason is a defective or non-functioning oil filter. It needs to be replaced with a new quality one.

Oil pressure sensor malfunction

The oil pressure at idle speed (at approximately 800 - 900 rpm) should not be less than 0.5 kgf/cm2. Sensors for measuring emergency oil pressure come with different response ranges: from 0.4 to 0.8 kgf/cm2. If a car is equipped with a sensor with a response value of 0.7 kgf/cm2, then even at 0.6 kgf/cm2 it will turn on a warning lamp, signaling a kind of emergency oil pressure in the engine. To understand whether the oil pressure sensor is to blame for the light coming on or not, you need to increase the crankshaft speed to 1000 rpm at idle. If the light goes out, then the oil pressure in the engine is normal. If not, then you need to contact specialists who will measure the oil pressure with a pressure gauge, connecting it instead of the sensor. Cleaning the sensor helps prevent false alarms. You need to unscrew it and thoroughly clean all the oil channels, because the cause of false alarms of the sensor may be due to blockages.

If the oil level is normal and the sensor is working

First of all, you need to check the oil dipstick and make sure that the oil level has not increased since the last check? Does the dipstick smell like gasoline? It is possible that gasoline or antifreeze is getting into the engine. It’s easy to check the presence of gasoline in the oil; you need to dip the dipstick in water and see if gasoline stains remain. If yes, then you need to contact a car service; the engine may need to be repaired. If there is a malfunction in the engine, which is caused by the oil pressure light coming on, it is easy to notice. Engine malfunctions are accompanied by loss of power, increased fuel consumption, and black or blue smoke coming out of the exhaust pipe. If the oil level is normal, then there is no need to worry about a prolonged indication of low oil pressure, for example during a cold start. In winter, at low temperatures, this is an absolutely normal effect. After parking overnight, the oil drains from all lines and thickens. The pump needs a certain time to fill the lines and create the necessary pressure. Oil reaches the main and connecting rod journals earlier than the pressure sensor, so wear of engine parts is eliminated. If the oil pressure light does not go out for about 3 seconds, it is not dangerous.

What you can do yourself

Measuring engine oil pressure The problem of low oil pressure is greatly complicated by the relationship between lubricant consumption and level drop with the overall pressure in the system. In this case, a number of malfunctions can be eliminated independently.

If leaks are detected, the problem is quite easy to localize and solve. For example, oil leakage from under the oil filter can be eliminated by tightening or replacing it. The problem with the oil pressure sensor, through which lubricant flows, is solved in a similar way. The sensor is tightened or simply replaced with a new one. As for seal leaks, in this case you will need time, tools and skills. In this case, you can replace the front or rear crankshaft oil seal with your own hands in your garage with an inspection hole.

Oil leaks from under the valve cover or in the pan area can be eliminated by tightening fasteners, replacing rubber gaskets, and using special engine sealants. Violation of the geometry of the connecting planes or damage to the valve cover/pan will indicate the need to replace such parts.

If the coolant gets into the engine oil, then you can remove the cylinder head yourself and replace the head gasket, while following all the recommendations regarding the removal and subsequent re-covering of the cylinder head. An additional check of the mating planes will indicate whether the cylinder head needs to be ground. If cracks are found in the cylinder block or head, repairs are also possible. As for the oil pump, if this element wears out, it is better to immediately replace it with a new one. It is also not recommended to clean the oil receiver, that is, the part is completely changed. In the case where the problem in the lubrication system is not so obvious, and you have to repair the car yourself, then at the very beginning you should measure the oil pressure in the engine. To solve the problem, as well as taking into account an accurate understanding of where the oil pressure in the engine is measured and how it is done, additional equipment must be prepared in advance. Note that there is a ready-made device for measuring engine oil pressure available for free sale.

As an option, a universal oil pressure gauge will “Measure”. This device is quite affordable and comes with everything you need. You can also make a similar device with your own hands. To do this, you will need a suitable oil-resistant hose, pressure gauge and adapters.

To measure, a ready-made or home-made device is connected instead of an oil pressure sensor, after which the pressure readings on the pressure gauge are assessed. Please note that ordinary hoses cannot be used for self-production. The fact is that oil quickly corrodes rubber, after which the detached parts can get into the oil system.

Results

The pressure in the lubrication system can drop for many reasons: - quality of the oil or loss of its properties; - leaks of oil seals, gaskets, seals; -oil “presses” out of the engine (pressure increases due to malfunctions of the crankcase ventilation system); - oil pump malfunctions, other breakdowns; -the power unit may be severely worn out, etc.

In some cases, drivers resort to using an additive to increase engine oil pressure. For example, XADO revitalizant. According to manufacturers, such an anti-smoke additive with revitalizant reduces oil consumption, allows the lubricant to maintain the required viscosity when heated to high temperatures, restores damaged crankshaft journals and liners, etc.

As practice shows, additives cannot be considered an effective solution to the problem of low pressure, but as a temporary measure for old worn-out engines, this method may be suitable. I would also like to draw your attention to the fact that the blinking oil pressure light does not always indicate problems with the internal combustion engine and its systems. It's rare, but it does happen that electrical problems arise. For this reason, the possibility of damage to electrical components, contacts, pressure sensor or the wiring itself should not be ruled out.

Finally, we would like to add that using only the recommended oil helps to avoid many problems with the oil system and engine. It is also necessary to select a lubricant taking into account individual operating conditions. The correct selection of viscosity index for the season (summer or winter oil) deserves no less attention.

Engine oil and filters must be changed correctly and done strictly according to regulations, since an increase in the service interval leads to severe contamination of the lubrication system. In this case, decomposition products and other deposits actively settle on the surfaces of parts and channel walls, clogging filters and the oil receiver mesh. Under such conditions, the oil pump may not provide the required pressure, causing oil starvation and significantly increasing engine wear.

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Oil receiver mesh

The oil receiver is designed to collect oil from the oil pan and supply it to the pump. To prevent wear products from entering the system along with the lubricant, the device is equipped with a mesh filter. Clogging of this filter prevents the oil from entering in full.

In order to get to the oil receiver mesh, you will have to drain the oil and remove the oil pan. The device is attached to the crankcase and oil pump with three bolts. By unscrewing them, the oil receiver can be dismantled. It is not possible to disassemble the filter, since it has a one-piece design, but you can still clean it. For these purposes, white spirit, solvent, and various household products for cleaning sewer pipes are used.

If the oil receiver grid is clogged, the pressure in the system decreases

It is not recommended to clean the oil receiver mesh by burning it!

What needs to be done?

First of all, as soon as the driver sees the signals from the oil pressure lamp, it is necessary to stop (if the indicator operates while the car is moving).

To troubleshoot problems, in some cases you may need the help of service station specialists. However, some actions are quite accessible to every driver:

• Check the engine oil level - if it is below the Min mark, add fluid. You should not add oil to the Max mark; a level between Min and Max will be quite sufficient.
• If after this the oil pressure light does not go out, you should think about the quality of the oil and filter used. It is quite possible that you have not replaced either one or the other for a long time.

  Along with the oil, the filter also needs to be changed.

• Also, one of the most likely reasons for the appearance of the oil can icon on the panel is the presence of dirt and deposits on the engine sump. You will need to clean the pan - it is quite possible that the indicator will disappear.

In cases where the reason for the oil pressure lamp to light up is due to more serious reasons - for example, a short circuit or defects in the oil pump, the help of a specialist will be required.

Oil pump

The oil pump is the main element of the system. It is he who creates pressure in it, pumping lubricant into the line. The main malfunctions of this unit include wear of its parts, as well as “sticking” of the pressure relief valve, which happens much more often. The exact reason why the pump cannot cope with its duties can only be determined by removing it and disassembling it. Removing the oil pump involves removing the oil pan, the right wheel of the car and the crankshaft pulley.

In most cases, the problem is solved by replacing the device. Buying a new oil pump will cost about 1000 rubles.

The cause of a drop in oil pressure may be a broken oil pump.

Special malfunctions of VAZ engines

These problems are common to almost all types of engines used in cars, including domestic ones.

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But there are also specific faults that occur only on certain cars.

On classic models VAZ-2106, 2107, the pump is driven from the timing chain via a drive gear and a drive roller.

A common problem in the malfunction of the lubrication system is wear of the gear sector on the gear or shaft. Replacing these elements allows you to get rid of problems.

As for modern cars, from the VAZ-2108 to the VAZ-2115, they have a direct pump drive, from the crankshaft gear.

The absence of intermediate elements in the design has increased the reliability of the drive, so the problems that arise in the engines of classic VAZs do not occur in modern cars.

Crankshaft bearings

The pressure in the system may also drop due to severe wear of the main or connecting rod bearings of the crankshaft. This phenomenon occurs on engines that have traveled more than 200 thousand km without major overhaul. Such a malfunction can only be detected after disassembling the engine.

Worn bearings allow more oil to pass through, which affects the pressure in the system

About additives and properties of oils for increasing pressure in the system

Some car enthusiasts are interested in whether there is motor oil that increases the pressure in the system. Rather, we are talking about special additives that improve its characteristics. The main result from the use of such compounds (for example, SUPROTEC) can be called the restoration of the previous parameters of operating processes in the engine. The surfaces of working parts and mechanisms of the piston group, worn out by constant friction, are partially restored, and their oil-holding capacity increases. As a result, fuel combustion efficiency increases and engine compression improves. Many oils contain special additives that are aimed at reducing engine lubricant consumption.

Sincerely, blog author Andrey Kulpanov

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