1. Engine does not rotate when trying to start
- 1. Loose fastening or damage due to corrosion of the connection of the battery terminals (Chapter 1).
- 2. The battery is low or defective (Chapter 1)
- 3. Position P is not included in the automatic transmission (chapter 7).
- 4. Rupture, disconnection or loosening of the starting circuit wiring (chapter 5 and 12).
- 5. Seizure of the starter gear in the ring gear of the flywheel (chapter 5).
- 6. Faulty starter solenoid (chapter 5).
- 7. Starter failure (chapter 5).
- 8. Faulty ignition switch (chapter 12).
- 9. Worn or broken starter gear teeth or flywheel ring gear (chapter 5).
2. Engine turns over but does not start
- 1. Empty fuel tank.
- 2. The battery is empty (motor rotates slowly) (chapter 5).
- 3. Loose fastening or damage due to corrosion of the connection of the battery terminals (Chapter 1).
- 4. Nozzle leak (Oh), malfunction of the fuel pump, pressure regulator, etc. (chapter 4).
- 5. Fuel does not enter the fuel rail (chapter 4).
- 6. Elements of the ignition system are wet or damaged (chapter 5).
- 7. Worn, defective, or misadjusted spark plug spark plugs (Chapter 1).
- 8. Rupture, disconnection or loosening of the starting circuit wiring (chapter 5).
- 9. Broken, disconnected or loose coil wiring harness (ek) ignition or coil failure (ek) ignition (chapter 5).
- 10. Malfunction of the camshaft or crankshaft position sensor (chapter 6).
3. Starting a cold engine is difficult
- 1. The battery is discharged or weakly charged (chapter 5).
- 2. Fuel system malfunction (chapter 4).
- 3. Faulty cold start injector (chapter 4).
- 4. Nozzle leak (Oh) (chapter 4).
- 5. Faulty coolant temperature sensor (chapter 6).
4. Starting a warm engine is difficult
- 1. Air filter clogged (Chapter 1).
- 2. Fuel does not enter the fuel injection system (chapter 4).
- 3. Violation due to corrosion of the connections of the battery terminals, especially the connections of the mass wire (Chapter 1).
5. Increased noise or uneven starter stroke when on
- 1. Worn or broken starter gear teeth or flywheel ring gear (chapter 5).
- 2. Loose or missing starter mounting bolts (chapter 5).
6. Engine starts but dies immediately
- 1. Loose or faulty electrical connections in ignition coil or alternator circuits (chapter 5).
- 2. Insufficient amount of fuel enters the fuel injector) (Chapter 1 and 4).
- 3. Loss of vacuum through the gasket between the intake manifold / storage chamber and the throttle body (Chapter 1 and 4).
7. Oil leaks under the engine
- 1. Leakage through oil pan gasket and/or drain plug gasket (chapter 2).
- 2. Leak at the oil pressure sensor installation site (chapter 2).
- 3. Leaks through the cylinder head gasket (chapter 2).
- 4. Leaks through engine seals (chapter 2).
- 5. Leak in oil pump housing (chapter 2).
8. Violation of the stability of the idle
- 1. Loss of vacuum (chapter 2 and 4).
- 2. Leakage through the EGR valve (chapter 6).
- 3. Clogged air filter (Chapter 1).
- 4. The fuel pump does not provide the required fuel flow (chapter 4).
- 5. Leak through head gasket (chapter 2).
- 6. Wear of the timing belt or toothed pulleys (chapter 2).
- 7. Camshaft lobes wear (chapter 2).
9. Misfire at idle
- 1. Worn or defective spark plugs (Chapter 1).
- 2. Faulty spark plug wires (Chapter 1).
- 3. Loss of vacuum (chapter 4).
- 4. Malfunction in the engine management system (chapter 6).
- 5. Inequality or low compression value in the cylinders (chapter 2).
10. Misfires during engine operation over the entire speed range
- 1. Clogged fuel filter and/or presence of dirt in the fuel system (Chapter 1).
- 2. Poor fuel injector performance (OK) (chapter 4).
- 3. Faulty or worn spark plugs (Chapter 1).
- 4. Malfunction in the engine management system (chapter 6)
- 5. Malfunction of elements of systems for reducing the level of harmful emissions (chapter 6).
- 6. Inequality or low compression value in the cylinders (chapter 2).
- 7. Worn or damaged coil (ek) ignition (chapter 5).
11. Engine runs erratically when accelerating
- 1. Contaminated spark plugs (Chapter 1).
- 2. Malfunction of the fuel injection system (chapter 4).
- 3. Clogged fuel filter (chapter 1 and 4).
- 4. Malfunction in the engine management system (chapter 6).
- 5. Air leakage in the intake manifold or storage chamber (chapter 2 and 4).
12. Violation of the stability of the engine when driving at a constant speed
- 1. Leak in the air intake system (chapter 4).
- 2. Malfunction of the fuel pump (chapter 4).
- 3. Loose fuel injector harness connectors (chapter 4).
- 4. Malfunction of the engine control unit or sensor (chapter 6).
13. Engine stalls
- 1. Clogged fuel filter and/or presence of water and dirt in the fuel system (chapter 1 and 4).
- 2. Elements of the ignition system are wet or damaged (chapter 5).
- 3. Malfunction of elements of systems for reducing the level of harmful emissions (chapter 6).
- 4. Malfunction or incorrect adjustment of the spark gap of the spark plugs (Chapter 1).
- 5. Loss of vacuum in the fuel injection system, intake manifold or vacuum hoses (chapter 2 and 4).
- 6. Incorrect valve clearance adjustment (Chapter 1).
14. Insufficient engine power
- 1. Malfunction in the engine management system (chapter 6).
- 2. Faulty or worn ignition (Chapter 1).
- 3. Malfunction in the fuel injection system (chapter 4).
- 4. Coil failure (Oh) ignition (chapter 5).
- 5. Sticky brakes (chapter 9).
- 6. Incorrect transmission fluid level in automatic transmission (Chapter 1).
- 7. Clogged fuel filter and/or presence of water and dirt in the fuel system (Chapter 1 and 4).
- 8. Improper operation of emission reduction systems (chapter 6).
- 9. Inequality or low compression value in the cylinders (chapter 2).
- 10. Clogged exhaust system (chapter 4).
15. Pops in the engine
- 1. Improper operation of emission control systems (chapter 6).
- 2. Malfunction in the engine management system (chapter 6)
- 3. Faulty spark plug insulator (Chapter 1).
- 4. Malfunction in the fuel injection system (chapter 4).
- 5. Loss of vacuum in the fuel injector (Oh), intake manifold, air control valve or vacuum hoses (chapter 2 and 4)
- 6. Incorrect valve clearance adjustment and/or valve sticking (Chapter 1).
16. Knocks caused by too early ignition or detonation when accelerating or moving «uphill»
- 1. Wrong brand of fuel.
- 2. Malfunction in the engine management system (chapter 6).
- 3. Malfunction in the fuel injection system (chapter 4).
- 4. Wrong type or damaged spark plug (to her) ignition (Chapter 1).
- 5. Loss of vacuum (chapter 2 and 4).
- 6. Faulty knock sensor (chapter 6).
17. The oil pressure warning lamp lights up when the engine is running
- 1. Low oil level (Chapter 1)
- 2. Short circuit in the electrical circuit (chapter 12)
- 3. Malfunction of the oil pressure sensor (chapter 2).
- 4. Worn motor bearings and/or oil pump (chapter 2).