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In the article, consider possible malfunctions that may occur during the operation of the Renault / Dacia Sandero car.
The engine will not start
Running the engine with fuel injection system is the same at any ambient air and fluid temperatures in the engine cooling system.
To start the engine, you only need to turn on the starter, without pressing the gas pedal, and the system itself is adjusted for the necessary fuel supply parameters and the ignition advance.
If the engine from three attempts did not start it:
Open the hood by pulling the drive handle on yourself
Measure the dipstick level of oil
In the engine K4M, the oil level should be between the upper and lower boundary of the shaded plot
In the engine K7J and K7M - between the bottom and the top marks on the dipstick
Check the coolant level
It should be between MIN and MAX marks on an expansion tank.
We inspect the engine. We pay attention to the drums of gasoline, oil and coolant.
Check the integrity of the wiring.
We check the landing of the pads of the wiring harnesses in the connectors of the ignition coils.
After inspection of the engine and systems, we once try to start the engine.
If the engine from the first attempt did not start, then press the gas pedal until it stops and turn on the starter for two to three seconds.
In this mode, cylinders are blocked, the fuel is not fed through the nozzles and the voltage is not fed to the spark plugs.
After the cylinder is purging, we try to start the engine as usual, without pressing the gas pedal.
If nevertheless, the engine did not start, then:
Power system does not work;
The ignition system does not work;
Starting system does not work.
Faults start
Starter does not turn on.
The reason may be violation of contacts and compounds.
Open or short circuit in the starter inclusion circuits, a traction relay fault.
If clicks are kept when the starter is turned on, then the reason in the discharged battery is oxidized or weak contacts on the battery or starter.
Also, the cause can be a malfunction of the holding relay winding.
If the starter turns on, but anchor either does not rotate, or rotates slowly.
The reason is the battery is discharged, the contact connections are impaired, the contacts of the traction relay are burned, the collector is dirty or brushes, interstetic or short circuit in the starter winding.
If the starter turns on, his anchor rotates, but the flywheel is immobile.
The reason can be the weakening of the starter attachment to the clutch card, damage to the teeth flywheel or drive gear, slipping the clutch of the free move drive, lever breakage, leash ring or the starter buffer spring springs.
If the starter does not turn off after the engine start.
The reason is the fault of the clutch of the free stroke of the starter, sintering contacts of the traction relay. If such a malfunction occurs, you need to stop the engine immediately.
On one of the most popular issues of automotive Internet forums there are plenty of answers. Of course, without having the opportunity to make a diagnosis or at least a visual inspection of the car, it is often impossible to produce to the essence of the problem and reveal its cause. However, the malfunctions, due to which the Renault may not start, can be divided into several categories depending on the "symptoms":
Does not turn the starter:
The battery does not give sufficient voltage
Usually it can be understood by attempting during an attempt to start the instrument panel, or when the nutrition on all the car devices is not available at all. Solved by replacing or charging the battery;
Starter power supply circuit
There are cases when the wiring is damaged from the control unit to the starter, or there is a bad contact on the terminals of the retractor starter relay. To solve the problem requires repair of wiring or cleaning / tightening terminals;
Faulty starter
Making sure that the starter nutrition is normal, you can come to the conclusion about the breakdown of the starter itself. In this case, repair or a bulkhead (cleaning / lubricant) of the starter is required;
it is not supplied to the starter. This may be due to both elementary with a burnt fuse and with a serious breakdown of the electronic system of the car. If the fuse has nothing to do with a qualified service;
Jinned engine
The most "sad" of the possible options when the starter does not twist simply because it cannot be checked the crankshaft due to the mechanical engine malfunction. It is usually solved by overhaul or replacing the engine (or head of the cylinder block);
Does not come fuel:
Fuel in the tank ended
If the fuel level sensor fails, it can mislead the driver, showing a sufficient level of fuel when it is actually absent.
Solved by refueling;
Damaged fuel line
It happens especially after off-road driving. The fuel tube can be reduced or interrupted. In this case, the fuel flows out, not reaching the nozzles. Solved by replacing or repair damaged parts;
Fuel nozzles do not work(for gasoline engines)
Usually due to the lack of nutrition on the nozzles from the control unit, since it is practically unrealistic that all fuel nozzles fail at the same time. May require repair or replacement of the engine control unit ("brains");
Do not come feed on the fuel pump(for gasoline engines)
As in the case of no power to the starter, it can be solved by replacing the fuse. Otherwise the qualified diagnosis of the scanner is required;
Fuel pump is faulty(for gasoline engines)
No spark:
The module (coil) ignition does not work
Spark plugs require replacement (cleaning)
A malfunction of one of the sensors responsible for the correct operation of the engine or the engine control unit
Electrical sensors transmitting parameters to the engine control unit can directly affect the launch of the car, namely, block the spark or fuel supply when trying to start. The problem requires competent diagnosis by the scanner;
Violations in the intake or exhaust engine systems:
Inlet Tract Problems
Due to the worn gaskets of the intake manifold or throttle, as well as the overall contamination of such nodes as: throttle, idle regulator, gases recycling valve, etc. - Start of the engine can be difficult or impossible. It is solved by cleaning the listed parts and replacing the necessary gaskets to new, after which it may be necessary to reset the adaptive settings of the ECU scanner;
Scored catalyst
If the catalyst collapsed and scored the exhaust pipe, the engine may not start, because The spent gases will nowhere to go out. In this case, the catalyst is removed from the exhaust system and, or change to a new one (which is very expensive), or reflash the engine control unit without a catalyst;
Good evening. Suddenly ceased Renault Sandrera 2010 release. Mileage 56 thousand. The problem happened when the wife went to take children from the cottage in the Yaroslavl region. From Moscow to the summer, the wife reached normally. The time on the way was 7 hours. The next day, the wife gathered to go back to Moscow, but the car would not start. Put another battery - started. After the battery was removed from the machine, stalled. Loaded the battery at the neighbor and went to Moscow. The time on the way was 4 hours. Machine reached. The question of what could be a malfunction? Old battery? Generator? Is it possible to remove the battery on the siders when the motor is running?
1 answer
good day.
it is not very desirable to shoot on the working machine of the battery (with the exception of cars where there are no electronics such as a penny old Muscovites) occurs in an electrical system and can burn some sensor, it is best to divide with wires.
if I understood correctly does not start it, it turns badly or does not twist the starter.
the reason that the car was not started by the village of Akb.
but why he sat down the reasons for two either in disrepair the battery is either charged.
when a car driving a warning lamp burns "Akb" on the tidy signaling that there is no charge?
first of all, when the battery installed on the car, measure the voltage on the terminals, it should be around 12.5 - 12.8 volts, then start the car and also measure the voltage at the terminals should be more about 13.8-14.5 volts, (fuse The voltage should increase slightly) This indicates that the working generator. Also, turn on the maximum all the electrotransmitters on terminals voltage should not be below 12.8 volts.
if the generator is worked out by the wines of the entire ABB.
The situation when the car refuses to start or immediately stalls after launch - one of the most unpleasant surprises in the life of the car owner. What could be the cause of such problems with Renault Sandero Stepway and how to fix it, we will tell in our current article.
Does not work starter
Cliff in the power circuit. The cause of the diet can be bad contact on the battery terminals or damage to the wiring from the starter to the control unit. Tightening terminals and replacing damaged wiring will completely eliminate the problem.
Lack of voltage from the battery
The weak charge of the battery can be easily defined along the swelling backlight of the instruments during the attempt to start the motor. If the battery is discharged completely, the devices will not light up at all. In this case, it is enough to change the battery, charge the old one from another machine or connect to a special charger. In stores you can also meet portable starting devices that will come to the rescue away from home.
Electricity on the starter may not be served after the combustion of one of the fuses. They are very inexpensive, but they can burn due to short circuit in the chain. If a new fuse fails again, it is worth contacting a professional auto electrician.
Starter malfunction
If everything is in order with the starter power, but it does not respond to a turn of the key, the reason may be in the breakdown of the mechanism itself. Cleaning, repair or replacement.
Mechanical engine malfunction
This is perhaps the most negative scenario. The starter in this case does not work simply because it is not able to turn the crankshaft. There is no simple solution here, the motor will have to be repaired or change to a good, but first, in any case, it will be necessary to make a thorough diagnosis.
Does not fuel
No matter how trite it sounded, but first of all it is worth checking if gasoline has ended in the tank. The fuel level sensor may well break and display false information to the instrument panel. However, it is quite a rare case.
No food at the fuel pump
As in the situation with the starter, the appropriate fuse and wiring will be checked.
Failure fuel pump
Sandero Stepway gas station can be out of order for various reasons. For example, due to low quality gasoline or overheating when working in an empty tank. The problem is solved by replacing the pump motor, or the entire design assembly.
Damage to the fuel tube
When driving off road or just a bad coating with stones there is a risk of damaging the fuel line. Gasoline in this case will flow to the ground and will not reach the engine. Repair of a damaged area will return the car into operation.
Failure of fuel injectors
Since the simultaneous failure of all the injectors is unlikely, most likely the problem in the engine control unit. It will be necessary to replace or repair.
Spark plug
Candles can be insufficient to launch a spark, the question can remove the cleaning of the candles or replacing them.
Breakdown of the ignition coil
In addition to the failure of the module itself, the reason is often hidden in bad contact at the connector. The solution is to clean the contacts or replacing the coil.
Problem with sensors
Numerous sensors that send information to the motor control unit sometimes work incorrectly. Here you need a competent specialist with special equipment for diagnosis.
Other common reasons
The exhaust pipe is clogged. If the destroyed catalyst breaks the exhaust pipe, spent gases will nowhere to go out and the car will not start. The catalyst in such a situation is removed from the exhaust system and either reconfigure the engine to work without it, or establish a new one.
Compression disorder. Compression in an internal combustion engine is its ability to maintain working pressure in the combustion chamber. The parameter is measured by a special device. There are unstable idle speeds about the presence of compression problems, increased consumption of gasoline and oil, a gray smoke exhaust.
Problems with immobilizer. Severing battery in the ignition key will not allow you to start a motor, as well as a chip malfunction inside the key. To check the version, you can use the spare key.
