Diagnostics of car malfunctions and methods of their elimination (Granta 2190)

1. When trying to start the engine, the crankshaft does not rotate

1. The terminals on the battery terminals are not tightened sufficiently or are oxidized ("Battery - Maintenance").

2. The battery is discharged or faulty ("Battery - Maintenance").

3. The starter electrical circuit is faulty ("Starter").

4. The starter drive components are faulty ("Starter - repair").

5. The starter traction relay is faulty ("Starter - repair").

6. The electric motor is faulty (anchor, windings, brush assembly) starter ("Starter - repair").

7. The ignition switch (lock) is faulty ("Ignition Switch (Lock) - Check").

8. The flywheel ring gear is damaged or worn ("Flywheel - removal and installation").

2. The crankshaft rotates, but the engine does not start

1. There is no fuel in the tank (fill the tank with fuel).

2. The crankshaft does not rotate fast enough to start the engine due to a low battery charge ("Battery - Maintenance").

3. The terminals on the battery terminals are not tightened sufficiently or are oxidized ("Battery - Maintenance").

4. Leakage in fuel system components, faulty fuel module or fuel pressure regulator ("Power supply system").

5. The timing belt is broken ("Timing Belt - Checking Condition").

6. The engine management system is faulty ("Checking the technical condition of the engine management system").

7. The electrical circuit of the ignition coils is faulty ("Ignition Coils - Checking and Replacing").

8. The crankshaft position sensor or its electrical circuit is faulty ("Crankshaft Position Sensor - Removal, Checking and Installation").

3. Difficulty starting a cold engine

1. The battery is discharged or the electrolyte level is insufficient ("Battery - Maintenance").

2. The power system is faulty ("Checking the technical condition of the power supply system").

3. The engine management system coolant temperature sensor is faulty ("Coolant Temperature Sensor - Removal, Checking and Installation").

4. Fuel injectors are leaky ("Fuel rail - removal, disassembly, assembly and installation").

5. The engine management system is faulty ("Checking the technical condition of the engine management system").

4. Difficulty starting a warm engine

1. The air filter is clogged ("Air filter - replacing the filter element").

2. The power system is faulty ("Checking the technical condition of the power supply system"),

3. The terminals on the battery terminals are not tightened enough or are oxidized, poor contact in the battery connection to the ground ("Battery - Maintenance").

4. The engine management system coolant temperature sensor is faulty ("Coolant Temperature Sensor - Removal, Checking and Installation").

5. The starter operates with a loud noise (grinding)

1. The flywheel ring gear is damaged or worn ("Flywheel - removal and installation").

2. The starter mounting bolts are loose ("Starter - removal and installation").

6. The engine starts but stops immediately

1. The electrical connections of the ignition coil are loose or damaged ("Ignition Coil - Checking and Replacing").

2. Insufficient pressure in the engine fuel system ("Checking the technical condition of the power supply system").

3. The connections of the intake tract parts are not tight ("Catalytic collector - removal, gasket replacement and installation" and "Intake manifold receiver - removal, replacement of seals and installation").

4. The engine management system is faulty ("Checking the technical condition of the engine management system").

7. Oil stains appear under the engine

1. The oil pan gasket is leaking or the drain plug is not tightly tightened ("Engine Oil Pan - Removal, Gasket Replacement and Installation").

2. The seal of the emergency oil pressure sensor is damaged ("Oil Pressure Sensor - Replacement").

3. The cylinder head cover seal is not tight ("Cylinder Head Cover Gasket - Replacement").

4. The crankshaft seals are worn or damaged ("Front Crankshaft Oil Seal - Replacement" and "Rear Crankshaft Oil Seal - Replacement").

8. Engine speed at idle speed decreases and then increases

1. Vacuum hose connections are not tight (check the tightness of the fittings).

2. The air filter is clogged ("Air filter - replacing the filter element").

3. Insufficient fuel pressure in the engine fuel system ("Checking the technical condition of the power supply system").

4. The cylinder head gasket is damaged ("Cylinder head - removal and installation").

5. Wear of the timing belt and/or tension roller ("Timing Belt - Checking Condition").

6. Wear of the camshaft cams ("Camshaft - Removal and Installation").

9. Misfiring at idle

1. The spark plugs are faulty or the gap between the electrodes is set incorrectly ("Spark plugs - replacement").

2. High-voltage wires are faulty ("High Voltage Wires - Checking and Replacing").

3. Vacuum hose connections are not tight (check the tightness of the fittings).

4. The ignition coil is faulty ("Ignition Coils - Checking and Replacing").

5. Insufficient compression in the engine cylinders ("Compression in engine cylinders - check").

6. The fuel injectors are faulty ("Fuel rail - removal, disassembly, assembly and installation").

10. Misfires when the engine is running under load (while the car is moving)

1. The fuel filter and/or engine fuel system lines are clogged ("Power supply system").

2. The fuel injectors are faulty ("Fuel rail - removal, disassembly, assembly and installation").

3. The spark plugs are faulty or the gap between the electrodes is set incorrectly ("Spark plugs - replacement").

4. The insulation of high-voltage wires is damaged ("High Voltage Wires - Checking and Replacing").

5. The engine management system is faulty ("Checking the technical condition of the engine management system").

6. Insufficient compression in the engine cylinders ("Compression in engine cylinders - check").

7. Leakage (burnout) of the valves of the gas distribution mechanism ("Cylinder head - checking and grinding valves").

8. The ignition system is faulty ("Checking the technical condition of the engine management system").

9. Vacuum hose connections are not tight (check the tightness of the fittings).

11. The engine does not develop full power

1. Wear of the camshaft cams ("Camshaft - Removal and Installation").

2. Leakage (burnout) of the valves of the gas distribution mechanism ("Cylinder head - checking and grinding valves").

3. Incorrect installation of valve timing ("Timing Belt - Replacement").

4. The ignition system is faulty ("Checking the technical condition of the engine management system").

5. The engine power supply system is faulty ("Checking the technical condition of the power supply system").

6. The air filter is clogged ("Air filter - replacing the filter element").

7. Sticking of the brake mechanism working cylinders ("Checking the technical condition of the brake system").

8. The clutch slips ("Checking the technical condition of the clutch").

9. The fuel filter and/or engine fuel system lines are clogged ("Checking the technical condition of the power supply system").

10. The engine management system is faulty ("Checking the technical condition of the engine management system").

11. Insufficient compression in the engine cylinders ("Compression in engine cylinders - check").

12. The exhaust system is faulty ("Checking the technical condition of the exhaust system").

12. When the engine is running, the oil pressure warning light comes on

1. Insufficient oil level ("Oil level - check").

2. Idle speed is below normal ("Checking the technical condition of the engine management system").

3. Short circuit in the "sensor - control lamp" circuit ("Electrical equipment diagrams").

4. The oil pressure warning light sensor is faulty ("Engine Oil Pressure Sensor - Replacement").

5. Wear of the crankshaft main bearings and/or oil pump ("Checking the technical condition of the engine", And "Oil pump - removal, inspection and installation").

13. Glow ignition (the engine continues to run for some time after the ignition is turned off)

1. High idle speed ("Checking the technical condition of the engine management system").

2. Engine overheating ("Checking the technical condition of the cooling system").

3. Carbon deposits on valves and in combustion chambers ("Cylinder head - checking and grinding valves").

14. Increased fuel consumption

1. The air filter is clogged ("Air filter - replacing the filter element").

2. The engine management system is faulty ("Checking the technical condition of the engine management system").

3. The fuel injectors are faulty ("Fuel rail - removal, disassembly, assembly and installation").

4. Insufficient air pressure in the tires ("Tires - Checking Pressure").

15. Fuel leaks and/or the smell of gasoline

1. Leaky fuel lines ("Checking the technical condition of the power supply system").

2. The fuel tank is overfilled (remove excess fuel).

3. Leaky fuel injectors ("Fuel rail - removal, disassembly, assembly and installation").

16. Engine overheating

1. Insufficient coolant level in the cooling system ("Checking the technical condition of the cooling system").

2. Coolant pump malfunction ("Coolant Pump - Replacement").

3. The engine cooling system radiator is clogged ("Engine cooling system radiator - removal and installation").

4. Thermostat is faulty ("Checking the technical condition of the cooling system").

5. The electric fan of the engine cooling system is faulty ("Electric fan - removal, disassembly and installation").

6. The valves in the expansion tank cap are faulty (replace the lid).

17. The battery does not charge

1. The alternator drive belt is worn out or not sufficiently tensioned ("Generator Drive Belt - Replacement").

2. Low electrolyte level in the battery ("Battery - Maintenance").

(Taken from the website: LADAMAN.ru)

3. The terminals on the battery terminals are not tightened sufficiently or are oxidized ("Battery - Maintenance").

4. The generator is faulty ("Generator - check").

5. The battery charging circuit is faulty ("Electrical equipment diagrams").

6. Short circuit in one of the electrical equipment circuits ("Electrical equipment diagrams").

7. The battery is faulty ("Battery - Removal and Installation").

18. The battery charge indicator lamp does not go out after starting the engine

1. The generator is faulty ("Generator - check").

2. The battery charging circuit is faulty ("Electrical equipment diagrams").

3. The alternator drive belt is worn out or not sufficiently tensioned ("Generator Drive Belt - Replacement").

4. The voltage regulator is faulty ("Voltage Regulator - Replacement").

19. The battery charge indicator lamp does not light when the ignition is turned on

The electrical circuit of the generator excitation winding is faulty ("Electrical equipment diagrams").

20. The clutch is slipping (the engine speed increases, but the car does not accelerate)

1. Oil getting on the working surfaces of the driven disk ("Checking the technical condition of the clutch").

2. Severe wear, warping and burning of the driven disk linings ("Checking the technical condition of the clutch").

21. Gear shifting is difficult or impossible

1. The gear shift drive adjustment is disturbed ("Gearshift Drive - Removal, Repair and Installation").

2. The tightening of the nuts securing the gear shift lever support has become loose ("Gearshift Drive - Removal, Repair and Installation").

3. The gear shift drive rod is deformed ("Gearshift Drive - Removal, Repair and Installation").

4. Breakage or wear of plastic parts of the shift mechanism ("Gearshift Drive - Removal, Repair and Installation").

22. Knocking (clicking) when turning the car at low speed

1. Wear of external constant velocity joints ("Checking the technical condition of the front wheel drives").

2. Loosening of front suspension fasteners ("Checking the technical condition of the front suspension").

3. Loosening of steering fasteners ("Checking the technical condition of the steering").

4. Failure of differential components ("Checking the technical condition of the gearbox").

23. Vibration when driving a car at high speed (over 90 km/h)

1. The front wheels of the car are out of balance ("Checking the technical condition of wheels, tires and hubs").

2. The geometry of the tires or wheel disks is damaged due to deformation ("Checking the technical condition of wheels, tires and hubs").

3. Wear of constant velocity joints of front wheel drives ("Checking the technical condition of the front wheel drives").

24. Deviation of the vehicle from straight-line movement

1. Different tire pressures on the front wheels ("Tires - Checking Pressure").

2. Different degrees of wear of the front tires ("Checking the technical condition of wheels, tires and hubs").

3. Breakage of one of the front suspension springs ("Checking the technical condition of the front suspension").

4. The front wheel alignment angles are out of adjustment ("Front Wheel Alignment Check").

5. Braking of one of the car's wheels ("Checking the technical condition of the brake system").

25. Car drifting when braking

1. Tire pressure difference between the front wheels ("Tires - Checking Pressure").

2. One of the brake mechanisms is faulty ("Checking the technical condition of the brake system").

3. The hose or pipeline of one of the brake mechanisms is pinched ("Checking the technical condition of the brake system").

4. Different degrees of wear of the brake mechanism parts of one of the vehicle axles ("Checking the technical condition of the brake system").

26. Uneven tire wear

1. Wheel alignment is out of adjustment ("Front Wheel Alignment Check").

2. Suspension springs failure ("Checking the technical condition of the front suspension" and "Checking the technical condition of the rear suspension").

3. The balance of one or more wheels is disturbed ("Checking the technical condition of wheels, tires and hubs").

4. The vehicle is overloaded or unevenly loaded (unload the car).

27. Excessive steering play

1. Wear of hub bearings ("Checking the technical condition of wheels, tires and hubs").

2. Failure of the steering rod ends ("Checking the technical condition of the steering").

3. Play in the steering mechanism ("Checking the technical condition of the steering").

28. Some headlights or taillights do not turn on

1. The lamp filament has burned out ("Lighting, light and sound signaling").

2. The lamp contact in the socket is oxidized ("Lighting, light and sound signaling").

3. The wires are damaged or the tips in their connections are oxidized ("Electrical equipment diagrams").

29. Individual headlights or taillights burn at half power

1. Poor contact or damage to the wire connecting the lamp (flashlight) to the ground ("Lighting, light and sound signaling").

2. Darkening of the lamp bulb ("Lighting, light and sound signaling").

30. The car door does not unlock

1. The water in the lock cylinder froze (in winter) ("Body maintenance").

2. The lock cylinder is dirty ("Body maintenance").

3. Damaging the lock cylinder mechanism ("External door handle - removal and installation", and "Trunk lock - replacement and adjustment").

31. Water penetrates into the cabin

1. The door opening seal is not tightly fitted or is damaged (correct or replace the seal).

2. The doors do not close tightly ("Door lock removal, installation and adjustment", and "Trunk lock - replacement and adjustment").