Suzuki Grand Vitara Oil Pressure Sensor Replacement

Replacing the oil pressure sensor - oil consumption disappeared

When changing the oil, I studied in more detail the suspicious moisture in the oil pan. The place was under the pressure sensor, it is screwed under the exhaust manifold and covered with a small heat shield. The sensor cable was very oily. After a bit of a fight, I managed to get to the sensor from above and replace it.

I was too lazy to remove the vacuum tubes, but it’s better to clear access there, otherwise your hands will barely crawl through. First, I unscrewed the three screws on the heat shield of the collector, then by touch, using a cardan ratchet and extension cords, unscrewed the two screws on the sensor shield. With difficulty, I replaced the sensor with a short head by 24, I need a long head by 24. So when I unscrewed it, I felt a small burr on the block, maybe a casting defect, or maybe when the sensor was screwed on, the thread was lost. This burr prevented the sensor from being firmly installed. The alphabet says that the sensor is threaded with sealant applied, I also did not find any traces of it. I shaved off the burr to smooth it out, I lubed the coils with Avro Clear Sealant and screwed it in at 18 torque, about the book.

Now I’m looking, it seems that the oil doesn’t go away at all over 700 km, which is very nice, there was an oil consumption of 1 liter per 1 tkm with the engine running smoothly, without smoke and with good acceleration. My version is that this is a factory marriage during casting, and there can be a lot of them, hence the abnormal oil consumption.

I hasten to share, because many had the same oil zhor with a known good engine. It also became quieter, like the chain began to blink on xx, although a little is still audible, maybe a leak in the sensor lowered the oil pressure and the upper chain was poorly tensioned, there have long been such thoughts. If so, then a one-millimeter bad casting of the block in the sensor hole, which is very difficult to reach, can and does give two known problems, judging by the problems of many GTMs: oil consumption and chain knock.

Insufficient oil pressure (warning light on)

Insufficient oil pressure (low oil pressure warning light on)

List of possible faults	Diagnosis	Removal methods
Low engine oil level	According to the oil level indicator	Add oil
Defective oil filter	Replace the filter with a good one	Replace defective oil filter
Accessory drive pulley bolt loose	Check bolt tightness	Tighten the screw to the prescribed torque
Clogged mesh of the oil receiver	Inspection	clear grid
Displaced and clogged oil pump relief valve or weak valve spring	Inspection when disassembling the oil pump	Clean or replace faulty relief valve. Replace pump
Oil pump gear wear	Determined by measuring parts after disassembling the oil pump (at the service station)	Replace oil pump
Excessive clearance between bearing shells and crankshaft journals	Determined by measuring parts after disassembling the oil pump (at the service station)	Replace worn liners. Replace or repair crankshaft if necessary
Faulty low oil pressure sensor	We unscrewed the low oil pressure sensor from the hole in the cylinder head and installed a known-good sensor in its place. If at the same time the indicator goes out when the engine is running, the reverse sensor is faulty	Replace faulty low oil pressure sensor

Reasons for drop in oil pressure

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

The oil level indicator may come on for two reasons: low oil pressure or low oil level. But what exactly the oil light on the dashboard means, only the instruction manual will help you find out. It helps that, as a rule, economy cars do not have a low oil level indicator, but only low oil pressure.

Insufficient oil pressure

If the oil lamp lights up, it means that the oil pressure in the engine is insufficient. As a rule, it lights up only for a few seconds and does not pose a particular threat to the engine. For example, it can ignite when the car is strongly rocked in 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 is usually already critically low. The first thing to do when the oil pressure light comes on is to check the engine oil. If the oil level is below normal, this is the reason that this lamp lights up. This problem is solved simply - you need to add oil to the desired level. If the light goes out, we rejoice, and do not forget to add oil in time, otherwise it can turn into serious problems.

If the oil pressure light is on, but the oil level on the dipstick is normal, then another reason why the light could light up is a malfunction of the oil pump. It does not cope with its task of circulating a sufficient amount of oil in the engine lubrication system.

In any case, if the oil pressure or low oil level light comes on, the vehicle should be stopped immediately by pulling to the side of the road or to a safer and quieter place. Why should you stop right now? Because if the oil in the engine is very dry, the latter can stop and fail with the prospect of a very expensive repair. Don't forget that oil is very important to keep your engine running. Without oil, the engine will fail very quickly, sometimes within a few minutes of operation.

Also, this situation occurs when replacing engine oil with a new one. After the first start, the oil pressure light may come on. If the oil is of good quality, it should go out after 10-20 seconds. If it does not go out, the cause is a faulty or non-working oil filter. It needs to be replaced with a new quality one.

Faulty oil pressure sensor

The oil pressure at idle (about 800 - 900 rpm) must be at least 0,5 kgf / cm2. Sensors for measuring emergency oil pressure come with a different response range: from 0,4 to 0,8 kgf / cm2. If a sensor with a response value of 0,7 kgf / cm2 is installed in the car, then even at 0,6 kgf / cm2 it will turn on a warning light indicating some emergency oil pressure in the engine.

To understand whether the oil pressure sensor in the bulb is to blame or not, you need to increase the crankshaft speed to 1000 rpm at idle. If the lamp goes out, the engine oil pressure is normal. Otherwise, you need to contact specialists who will measure the oil pressure with a pressure gauge, connecting it instead of the sensor.

Cleaning helps from false positives of the sensor. It must be unscrewed and all oil channels thoroughly cleaned, because clogging can be the cause of false alarms of the sensor.

If the oil level is normal and the sensor is good

The first step is to check the dipstick and make sure the oil level has not risen since the last check. Does the dipstick smell like gasoline? Maybe gasoline or antifreeze got into the engine. Checking the presence of gasoline in the oil is easy, you need to dip the dipstick into the water and see if there are any stains of gasoline. If yes, then you need to contact a car service, perhaps the engine needs to be repaired.

If there is a malfunction in the engine, which is the oil pressure light, it is easy to notice. Engine malfunctions are accompanied by a loss of power, an increase in fuel consumption, black or gray smoke comes out of the exhaust pipe.

If the oil level is correct, you can not be afraid of a long indication of low oil pressure, for example, during a cold start. In winter, at low temperatures, this is an absolutely normal effect.

After overnight parking, the oil drains from all roads and thickens. The pump needs some time to fill the lines and create the necessary pressure. Oil is supplied to the main and connecting rod journals in front of the pressure sensor, which eliminates wear on engine parts. If the oil pressure lamp does not go out for about 3 seconds, this is not dangerous.

Engine oil pressure sensor

The problem of low oil pressure is greatly complicated by the dependence of lubricant consumption and level reduction on the total pressure in the system. In this case, a number of faults can be eliminated independently.

If leaks are found, the problem is fairly easy to locate and fix. For example, oil leakage under the oil filter is eliminated by tightening or replacing it. In the same way, the problem with the oil pressure sensor, through which lubricant flows, is also solved. The sensor is tightened or simply replaced with a new one.

As for the leakage of oil seals, this will take time, tools and skills. At the same time, you can replace the front or rear crankshaft oil seal with your own hands in your garage with an inspection hole.

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

If coolant gets into the engine oil, you can independently remove the cylinder head and replace the cylinder head gasket, following all recommendations for removing and then tightening the cylinder head. A further check of the mating planes will show if the block head needs to be ground. If cracks are found in the cylinder block or cylinder head, they can also be repaired.

As for the oil pump, in case of wear, this element is best replaced immediately with a new one. It is also not recommended to clean the oil receiver, that is, the part is completely changed.

In the event that the problem in the lubrication system is not so obvious and you have to repair the car yourself, first of all it is necessary to measure the oil pressure in the engine.

To eliminate the problem, and also taking into account an accurate idea of ​​\uXNUMXb\uXNUMXbwhat the oil pressure in the engine is measured in and how it is done, it is necessary to prepare additional equipment in advance. Please note that there is a ready-made device for measuring oil pressure in the engine on the market.

See also: seat pressure sensor

As an option, a universal pressure gauge "Measurement". Such a device is quite affordable, the kit has everything you need. You can also make a similar device with your own hands. This will require a suitable oil resistant hose, pressure gauge and adapters.

For measurement, instead of an oil pressure sensor, a ready-made or home-made device is connected, after which the pressure readings on the pressure gauge are evaluated. Please note that conventional hoses cannot be used for DIY. The fact is that the oil quickly corrodes the rubber, after which the exfoliated parts can get into the oil system.

In view of the above, it is clear that the pressure in the lubrication system can drop for many reasons:

oil quality or loss of its properties;

leakage of oil seals, gaskets, seals;

oil "presses" the engine (increases pressure due to a malfunction of the crankcase ventilation system);

oil pump malfunction, other breakdowns;

the power unit can be very worn out and so on

Note that in some cases, drivers resort to the use of additives to increase the oil pressure in the engine. For example, healing XADO. According to manufacturers, such an anti-smoke additive with a revitalizer 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, it cannot be considered an effective solution to the problem of low-pressure additives, but as a temporary measure for old and worn engines, this method may be suitable. I would also like to draw attention to the fact that the blinking of the oil pressure light does not always indicate a problem with the internal combustion engine and its systems.

Rarely, but it happens that there are problems with the electrician. For this reason, the possibility of damage to the electrical components, contacts, pressure sensor or the wiring itself cannot be ruled out.

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

The change of engine oil and filters must be carried out correctly and in strict accordance with the regulations, since an increase in the service interval leads to severe contamination of the lubrication system. Decomposition products and other deposits in this case actively settle on the surfaces of parts and channel walls, clog filters, oil receiver mesh. The oil pump under such conditions may not provide the required pressure, there is a lack of oil, and engine wear increases significantly.

Where is the oil pressure sensor located on a Suzuki Grand Vitara

When the ignition is on, the oil pressure sensor is energized. While there is no oil pressure in the engine, its electrical circuit is closed by the oil pressure sensor to ground; at the same time, you will see a red hand oiler symbol.

After starting the engine, the oil pressure increases with increasing engine speed, the oil pressure switch opens the contacts, and the indicator goes out. Cold engine oil is quite viscous. This results in high oil pressure, causing the oil pressure switch to go out as soon as the engine is started. In a hot engine in summer, the oil is thinner.

Therefore, the oil pressure indicator may go out a little later, after increasing the engine speed. Possible malfunctions. If during a trip the oil pressure indicator suddenly lights up, then this is a sign of a malfunction.

Replacing the oil pressure sensor - oil consumption disappeared

Steering wheel and steering column 9. Steering wheel and steering column with airbag Suspension Rear suspension Wheels and tires Oil seal Drive axles Brake system Front brakes Parking and rear brakes Anti-lock braking system ABS Engines Engine mechanics J20 Engine cooling Engine cooling system Fuel Ignition system Engine ignition system J20 Starting system Electrical system Gearbox exhaust system Manual transmission type 2 Gearbox clutch Front and rear differentials Rear differential Lighting system Immobilizer

Car recycling, recycling Auto parts depots Technical services. Possible malfunctions If during the trip the oil pressure indicator suddenly lights up, then this is a sign of a malfunction. Before starting the engine, this must be indicated by the oil level indicator on the control device.

Check the oil level and top up if necessary. The indicator is on for a long time, it must be stopped immediately!

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After that, first check for a short circuit in the green wire from the oil pressure sensor to the pressure gauge: turn on the ignition, disconnect the plug from the oil pressure sensor wire. When the engine is not running, the indicator should go out; it's better if the visitor watches it.

Oil pressure indicator

If the indicator continues to burn, then the insulation of the wire is broken somewhere and it is grounded. This is not dangerous to the engine and it can still move.

The oil pressure gauge usually indicates that the engine lubrication points do not have the required oil pressure. This is usually not caused by a faulty oil pump, but by a sudden loss of oil. Look, for example, to see if the screw plug has come out of the oil drain hole.

Oil pressure sensor for SUZUKI GRAND VITARA

If a dangerous engine malfunction is detected, your Renault must be towed. With the pressure gauge constantly on, the oil pressure sensor rarely fails. This can only be checked by replacing the sensor.

Temporary check: Move the tab of the oil pressure sensor connector back and forth, it may be loose. Does the oil pressure sensor go out when the engine is started briefly? The oil pressure sensor did not light up when the ignition key was turned!

Turn the ignition on, disconnect the cable from the oil pressure sensor and connect it to ground: if the oil pressure indicator is now on, then the oil pressure sensor is faulty. Replace sensor.

If the oil pressure indicator does not light up, then the wiring is broken, the combined instrument panel or the sensor itself is faulty. After the expiration of copyright, in Russia this period is 10 years, the work goes into the public domain.

This circumstance allows free use of the work, while respecting personal rights, except for property - the right of authorship, the right to a name, the right to protection from any distortion and the right to protect the reputation of the author - since these rights are protected indefinitely. All information presented on this site is the property of the project or other specified authors. If the light comes on briefly during emergency braking or fast cornering, the oil level is probably below the minimum mark.

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Malfunctions Suzuki Grand Vitara 3 — TOP-15

1. bridge gearbox
2. Oil consumption
3. Catalyst
4. Valve train chain
5. Tension rollers
6. Oil gauge
7. Stabilizer bushings
8. Silentblocks
9. Manual Transmission
10. Seals
11. breakup bolts
12. Bras
13. Seat creaks
14. Fuel tank hatch
15. Bows on the back

Today Suzuki Grand Vitara is considered one of the most popular SUVs in the CIS countries. In the vastness of Japan and other Asian countries, the car is better known as the Suzuki Escudo. You can often find the name SGV or SE, denoting short names for the same model. The third generation was first introduced in 2005 and was produced until 2013-2014 inclusive.

The peculiarity of this model is that during the production the car has proven itself well and repeatedly won the glory of a reliable crossover. There are also shortcomings that have not been eliminated during the production period of this generation of Suzuki Grand Vitara. Consider the main malfunctions, the possibility of solving the problem, as well as the consequences of a breakdown.

Front axle reducer

Many owners of Suzuki Grand Vitara repeatedly talk about problems with the front axle gearbox. It should be noted that this problem does not depend on the mileage of the car, but extends directly to how the car is operated. Often when changing the oil in the gearbox, you can notice the emulsion. The reason is the gearbox breather, which is not so long and tends to suck moisture through itself.

As a rule, prolonged driving with such an emulsion can cause a hum when driving, and over time, the gearbox completely fails, as moisture does its job. One solution is to lengthen the breather, as well as monitor the quality of the oil in the gearbox itself. To do this, simply loosen the drain bolt a little and see what fluid comes out of the gearbox.

Engine oil consumption

Zhor, increased oil consumption, maslozhor - as soon as the owners of the Suzuki Grand Vitara do not call this problem, it is worth noting that there is a problem and it is almost impossible to solve it. So the engineers fixed the engine, and therefore the car will begin to consume oil even at the dealer. Noticeably begins to eat oil somewhere around 60 thousand kilometers. You can discuss this problem for a long time, as well as ways to solve it.

However, the owners drew up a scheme that it is necessary to change not according to the regulations, once every 15 km, but once every 000 km. Since there is no point in the dealer service. It is said that riding in oil negatively affects the fuel system, soot is deposited on the pistons, and deposits appear on the rings. As a result, more oil is consumed than it should be according to the norms. Temporary solution: Change the oil to a thicker 8W-000 or 5W-40, if necessary, replace the valve stem seals and piston rings.

Inefficient catalyst

A clogged catalytic converter may be associated with increased oil consumption. And so the engine cokes along with the exhaust gases, and then the exhaust system suffers. Very often, lambda zone sensors or catalytic converters fail. The on-board computer starts showing errors (P0420 and P0430).

Decryption of errors can be found in special directories and on the Internet. Service centers solve the problem by replacing the necessary catalyst and sensors. Suzuki Grand Vitara owners decide differently, some install emulators and towbars, others cut out catalysts, change the firmware in the control unit and modify the exhaust system.

The chain in the engine rattles

A very common cause of engine hum is the timing chain. All units of the most common configurations of the Suzuki Grand Vitara are based on a chain drive. On average, the timing chain starts to buzz after a run of 60 thousand kilometers. The main reason is the weakening of the chain tensioner. To solve the problem, it is enough to replace the shock absorber by removing the valve cover.

The ideal option is a complete chain maintenance. It is better to unscrew the front of the engine, completely replace the timing chain, chain guide, tensioner and sprockets. It’s not worth it to clog up with this, since at 120 thousand, destruction of the shock absorber plastic is usually observed. If you do not look in time, the chain may get stuck or even break. Therefore, it is best to replace the chain and all related parts.

Belt tensioners

In total, there are two main rollers on the Suzuki Grand Vitara engines. One roller is responsible for connecting the crankshaft to the generator, the other for the power steering belt and the air conditioning pump. The problem is classic, somewhere after 80k km bearings begin to die. Noise, hum, dry running of bearings. No matter how you lubricate, the grease will come off at high speeds and the hum will come back again.

You should not change every detail of the video separately, just waste time, nerves on crimping, etc., but there will be no result. It is best to buy a new one from the factory and replace it. Replacing two rollers with a key for 13 and an end for 10 will take a maximum of 30 minutes, at the same time check the belts.

Engine oil pressure sensor

The problem with the failure of the oil pressure sensor is the overflow of the oil itself. The excess pressure from the oil pump also plays its role, the sensor simply pops out. As a result, oil can flow in a stream from under the sensor, and if it is not noticed in time, the engine will simply jam. The most reliable solution is to replace the oil sensor.

Front stabilizer bushings

According to the owners of the Suzuki Grand Vitara, the front stabilizer bushings are considered expendable, especially given the road conditions. On average, the resource of the front stabilizer bushings is from 8 to 10 thousand km. Although, sometimes less, as it all depends on driving style and distance.

Owners of a Suzuki Grand Vitara with a 2,0 liter engine can be advised to take hubs from a configuration with a 2,4 liter unit. They are slightly larger, but work better and last twice as long. For a complete set with engines of 2,7 and 3,2 liters, it is better to buy native ones, the characteristics of these machines are individual.

Cracked silent block

A frequent and rather early problem of the Suzuki Grand Vitara 3 is a broken block of the rear muffler of the front lever. There can be several reasons, bad roads, off-road driving or damaged adjusting bolts. There are several solutions to this problem, some are replaced by Honda or polyurethane silent blocks. Others prefer to replace the lever assembly. Naturally, the prices differ by almost 10 times.

Engage or not engage 1st gear

This article only applies to Suzuki Grand Vitara with manual transmission. Automatic transmission is considered the most common transmission, but there are options with manual transmission. So, in the manual transmission there is a problem when turning on the first gear on a warm car. The box refuses to turn on, turns on with a growl, does not find the first gear at all. There is no final solution to this problem, and there is no point in changing the entire box. Some decide to fix the manual transmission, others go to dealers, where they fix this problem with various efforts.

Door seal spoils the view

The fact that somewhere you can see a hanging seal is a trifle. Much worse if the same sealant ruins the paint. Over time, door seals simply wear off the paint, especially on the tailgate. The view is certainly not the best. Some owners paint, others just open with varnish, but it's better not to let it take its course.

Camber adjustment bolts

A soured bolt can be found even on the newest car, especially when examining its bottom. The reasons are banal, water and weather conditions. As a rule, the rear bolts tend to turn sour. In this case, it is impossible to adjust the collapse convergence. The only way out is to cut off the soured bolts with a grinder and install new ones. Together with the bolts, silent blocks are usually changed. When replacing adjusting bolts, it is better to lubricate with graphite or copper grease, so they will last longer.

Stitched door latch

Doors do not stay open, do not open well, or even hiss. For Suzuki Grand Vitara, this is a normal disease. The metal from which the clamps are made leaves much to be desired. The solution to the problem is to install new latches, although you can try to repair the old ones.

Seat creaks

This sore, in the form of a creaking driver's seat, affects all Suzuki Grand Vitara without exception. According to experienced owners, the creak comes from the side airbag mounting tabs. It is enough to bend the bra in the right direction. It would seem a little, but it loosens the nervous system and you can only repair it yourself, replacing the part will not save.

Fuel door won't open

A very common problem with the Suzuki Grand Vitara is the fuel cap that opens electronically. The problem is that the locking pin wears out over time, or rather, its fasteners and the pin itself do not hide in the socket. That is why the gas tank hatch is difficult to open or close over time. To solve the problem, you need to sharpen the hairpin with a file, but do not overdo it, otherwise the hatch will not close.

Rear arch moldings

It's no secret that many SUVs suffer from "bugs" in the rear wheel arches. Large tires and the structure of the car itself are designed in such a way that dirt, sand and moisture constantly get between the metal and the seals. The Suzuki Grand Vitara has molding on the rear wheel arches. If you wash it with high pressure, it just tears or peels off. It would seem a little, but without it, iron begins to rust and bloom. You can solve the problem with liquid nails or something else.

In general, the third-generation Suzuki Grand Vitara SUV leaves a positive impression. The car is reliable and unpretentious, a minimum of electronics, a maximum of controllability. If you carry out maintenance of the car on time and change the necessary parts, the Suzuki Grand Vitara will delight you for more than a hundred kilometers without a lot of repairs. It is enough to refuel with high-quality gasoline, see the oil level in the engine and listen to the overall operation of the unit.