You turned the key in the ignition, but the engine Lada Granta Is it stubbornly silent or does the starter spin โidleโ? The situation is familiar to many owners of this model - especially in the cold season or after a long stay. The reasons can be either trivial (dead battery) or serious (problems with the fuel system or ECU). In this article we will look at all possible reasonsfor which it wonโt start Granta, - from the most obvious to hidden faults, and we will also give clear instructions on how to diagnose and fix the breakdown yourself.
It is important to understand: the troubleshooting algorithm depends on exactly how the car behaves when trying to start. For example, if the starter does not turn at all, the problem is most likely an electrical one, and if the engine โstartsโ but does not start, the fuel system or ignition is to blame. We have structured the material so that you can quickly find your case and not waste time checking all the nodes in a row.
The article will be useful for both beginners and experienced car owners: it contains both basic tips (for example, how to โlightโ a battery) and advanced diagnostic methods (checking signals from sensors with a multimeter). And at the end - an FAQ with answers to the most frequently asked questions about Grante.
1. Discharged or faulty battery
The most common reason why it won't start Lada Granta โ dead battery. Moreover, the problem can manifest itself in different ways:
- ๐ The starter does not respond to turning the key (there are not even relay clicks).
- ๐ The starter turns very slowly, โwith effort.โ
- ๐ก The dashboard lights up dimly or goes out when trying to start.
On Grante (especially with an alarm and multimedia) the battery discharges quickly if the car sits for more than 3-4 days without driving. The following may also be to blame:
- ๐ Unswitched consumers (for example, dimensions or radio).
- ๐งฒ Sulfation of plates (if the battery is older than 3-4 years).
- ๐ง Poor contact on the terminals (oxidation or weak tightening).
How to check:
- Turn on the headlights. If they light dimly or go out quickly, the battery is discharged.
- Try starting the engine from a pusher (on a manual transmission) or โlightingโ it from another car.
- Measure the voltage at the terminals with a multimeter:
- ๐ 12.6โ12.7 V โ The battery is charged.
- ๐ 12.0โ12.4 V โ partial discharge (needs recharging).
- ๐ Below 11.8 V โ deep discharge (possible sulfation).
โ ๏ธ Attention: If after โlighting upโ Granta It starts, but after a couple of days it wonโt start again - there is a problem with the generator or a current leak. Don't delay diagnosis!
2. Problems with the starter
If you hear when you turn the key relay clicks, but the starter does not turn or rotates jerkily, the culprit may be:
- ๐ง Solenoid relay (common illness Grants - oxidation of contacts or breakage of the winding).
- ๐ Brush wear or starter bearings.
- ๐ Open circuit (check fuse F3 in the mounting block).
How to diagnose:
- Turn the key to the ignition position and listen:
- ๐ One loud click - faulty retractor.
- ๐ Multiple clicks โ the battery is discharged or the contact is bad.
- ๐ Grinding or squealing - Bendix wear.
On Grante the starter often โdiesโ after 100โ150 thousand km. If it has already been repaired, it is easier to replace it entirely - the repair will cost almost the same amount.
โ๏ธ Starter diagnostics
3. Malfunctions in the ignition system
If the starter turns vigorously, but the engine does not โget enoughโ or runs intermittently, the problem may be:
- ๐ฅ Spark plugs (flooded, worn, incorrect clearance).
- ๐ Ignition coils (on Grante 8-valve - one, 16-valve - four individual).
- ๐ถ High voltage wires (insulation breakdown).
- ๐ ๏ธ Crankshaft position sensor (CPS).
How to check spark plugs:
- Unscrew the spark plugs (use a 16 or 21 socket wrench).
- Inspect the electrodes:
- ๐ฅ Black soot - rich mixture or oil in the chamber.
- ๐ฅ White soot - lean mixture.
- ๐ฅ Wet candles โ filled with gasoline (needs to dry).
On Grante with a 16-valve engine, individual coils often die one at a time. Swap them - if the cylinder that was not working started working, and the other โdiedโ, the coil is faulty.
โ ๏ธ Attention: If after replacing spark plugs or coils the engine shakes, check wires for correct connection (on 8-valve Grante cylinder order: 1-3-4-2).
4. Problems with the fuel system
If the starter turns, there is a spark, but the engine does not start, the fuel system may be to blame. On Grante Most often they break:
- โฝ Fuel pump (does not pump gasoline).
- ๐ง Fine filter (clogged).
- ๐ข๏ธ Injectors (clogged).
- ๐ถ Fuel pressure sensor (on 16-valve models).
How to diagnose:
- When you turn the key to the ignition position, you should hear buzzing sound fuel pump (2โ3 seconds). If it is not there, check fuse F15 (15A) and relay K12.
- Check the rail pressure:
- โฝ Norm: 3.8โ4.0 bar (idle).
- โฝ Low pressure โ the filter is clogged or the pump is faulty.
On Grante with engine 21116 (8kl) and 21126 (16kl) The fuel pump mesh often gets clogged. To clean it, you need to remove the back seat and remove the pump from the tank.
| Symptom | Probable Cause | Solution |
|---|---|---|
| The starter turns, but the engine does not โget enoughโ | No fuel supply | Check the pump, filter, rail pressure |
| The engine starts and stalls | Fuel filter or injectors clogged | Replace the filter, wash the injectors |
| Engine stutters after starting | One of the injectors is faulty | Check injector resistance (11โ15 Ohm) |
| Smell of gasoline in the cabin | Fuel leakage from lines | Inspect the hoses under the hood and under the car |
How to wash injectors without removing them?
You can use special fuel additives (for example, Liqui Moly or Wynn's), but this is a temporary solution. For complete cleaning you need an ultrasonic bath or stand.
5. Immobilizer and ECU: hidden faults
If all systems are in order, but Granta stubbornly won't start, the problem may be immobilizer or electronic control unit (ECU). Typical symptoms:
- ๐ The dashboard flashes or lights up immobilizer icon (car with key).
- ๐ง The engine starts and immediately stalls (the ECU โthinksโ itโs a theft).
- ๐ถ Errors are shown on the diagnostics
P1610,P1614orP0560.
What to do:
- Try it reboot immobilizer:
- Insert the key into the lock.
- Turn to the ignition position for 10 seconds.
- Turn off the ignition, remove the key, wait 20 seconds and try again.
On Grante with ECU M74 or Itelma The immobilizer settings are often lost after disconnecting the battery. In this case, only flashing or replacing the unit will help.
โ ๏ธ Attention: If, after manipulating the immobilizer, the car starts, but after a while it stalls again, the problem is immo antenna circuit break (check the wiring around the ignition switch).
If the immobilizer prevents starting and the keys are working properly, try disconnecting the battery for 10โ15 minutes. Sometimes this resets ECU errors.
6. Sensors: small parts with big problems
On Lada Granta Several sensors are responsible for starting the engine. If at least one of them produces incorrect data, the ECU may block startup. The most โproblematicโ sensors:
- ๐ Crankshaft position sensor (CPS) - if it is faulty, the engine will not start at all.
- ๐ก๏ธ Coolant temperature sensor (DTOZH) - if it breaks down, the ECU does not prepare the mixture correctly.
- ๐จ Mass air flow sensor (MAF) - overestimates or underestimates readings, which causes the engine to flood.
- ๐ง Throttle Position Sensor (TPS).
How to check DPKV:
- Remove the sensor (it is located on the oil pump cover).
- Check the winding resistance with a multimeter - it should be 550โ750 Ohm.
- Inspect the sensor for cracks or metal shavings.
On Grante with a 16-valve engine, the DPKV often โglitchesโ due to oil ingress. If the sensor is working, but there is an error P0335 or P0336 remains - check gap between sensor and pulley (should be 1ยฑ0.4 mm).
Critical information: On Grante with ECU Itelma M74 A faulty DPKV can cause the engine to start only after 3โ5 attempts. This is a sign of imminent sensor failure!
7. Engine mechanical problems
If all electrical systems are in order, but Granta won't start, the reason may be mechanics. The most serious damage:
- ๐ง Broken timing belt (on an 8-valve engine the valves do not bend, on a 16-valve engine they do!).
- ๐ข๏ธ Seized camshaft or crankshaft (the engine does not turn over with the starter).
- ๐ฅ Cylinder head gasket failure (antifreeze in cylinders).
- ๐ฅ Hydraulic compensators (on a 16-valve engine).
How to diagnose:
- Try cranking the engine by hand (using the crankshaft pulley bolt). If it doesn't rotate, it jams.
- Remove the timing belt cover and check its integrity. On Grante the belt needs to be changed every 60โ70 thousand km.
- Check the compression in the cylinders (should be at least 10 bar). If there is โzeroโ in one of the cylinders, the gasket is broken or the piston is jammed.
If the engine Grants the starter โdoes not turnโ, but metallic knocks are heard - don't try to force him on! This can lead to even more serious damage (for example, a broken connecting rod).
On 16-valve Grante A broken timing belt almost always leads to bent valves. If you suspect this breakdown, immediately take the car to a tow truck!
8. Other reasons: from alarms to bad gasoline
Sometimes Lada Granta does not start for reasons that are difficult to diagnose immediately:
- ๐จ Alarm blocks startup (especially if a non-standard one is installed).
- โฝ Bad fuel (diluted gasoline or water in the tank).
- ๐ Oxidized contacts in the mounting block or on the computer.
- ๐ก๏ธ Frozen water in the fuel system (relevant in winter).
What to do:
- If you suspect an alarm, turn it off (usually there is an emergency button
Valet). - If you suspect bad gasoline, drain it and fill it with new one (you can add an additive to clean the system).
- Check fuses and relays in the mounting block (especially F3, F15, K12).
- Add to tank in winter antigel or "fuel dryer".
On Grante with gas cylinder equipment (GBO) The car may not start on gas due to:
- ๐ฅ Frozen gearbox.
- ๐ง Faulty valve on the cylinder.
- ๐ถ Failure in the HBO control unit.
In this case, try starting the engine on gasoline (if the system allows).
FAQ: Frequently asked questions about launching Lada Granta
The car does not start after washing the engine - what to do?
Most likely, water got on electrical contacts (starter, ignition coils, ECU). Dry the engine compartment with a hairdryer or compressor. Pay special attention to:
- ๐ Crankshaft sensor connector.
- ๐ฅ Ignition coils.
- ๐ถ Fuse box.
If the problem remains after drying, check wire insulation integrity.
Granta starts only with gas - what is the reason?
This is a sign that the engine โnot getting enoughโ fuel or air. Most often the culprits are:
- โฝ Clogged fuel filter (check the rail pressure).
- ๐จ Dirty air filter (replace).
- ๐ง Air leak through cracks in the pipes or gasket of the intake manifold.
- ๐ Faulty mass air flow sensor (check the voltage at the connector - it should be 0.99โ1.01 V).
The starter turns, but the engine does not start - what to check first?
Follow this algorithm:
- Check presence of spark (unscrew the candle and apply it to the mass).
- Make sure fuel arrives (listen to the operation of the pump, check the pressure in the rail).
- Check DPKV (without it the engine will not start).
- Inspect fuses F3, F15, K12.
- If everything is ok, remove it timing belt cover and check its integrity.
After replacing the battery, the Grant does not start - what should I do?
This is a typical problem Grants with immobilizer. When the battery is disconnected, the ECU settings are lost. Try:
- Insert the key into the lock and turn it to the โignitionโ position for 10 minutes (to โtrainโ the immobilizer).
- Remove the key, wait 20 seconds and restart.
- If it doesnโt help, disconnect the battery for 15 minutes (sometimes it clears errors).
- As a last resort, contact diagnostic tool to reset the immobilizer.
If the car starts but is unstable, you need to reset ECU adaptations (for example, via OpenDiag or Diagnostics of MMS).
Granta will not start in cold weather - how to start it?
Problems starting in cold weather Grants related to:
- ๐ Weak battery (in cold weather the capacity drops by 30โ50%).
- โฝ Thickened oil (especially if itโs filled with โsummerโ oil).
- ๐จ Suction of cold air (the engine does not warm up).
What to do:
- Try it recharge the battery or โlight upโ from another car.
- Press the clutch when starting (relieves the load on the starter).
- If it doesn't help - warm up the oil (for example, a lamp under the crankcase).
- As a last resort, pour it into the tank 100 ml acetone (will help evaporate condensation in the fuel).