Cause | Method of elimination |
The engine starts poorly or does not start at all | |
| No spark. Distributor cap is wet and dirty | Clean and dry the distributor cap and spray the inside with a spray for starting a damp engine |
| Cracks in the distributor cap, traces of burning | Replace the distributor cap |
| The graphite sliding contact in the distributor cap is worn out | Replace the graphite sliding contact |
| The distributor rotor is faulty | Replace the distributor rotor |
| Distributor rotor resistance too high | Replace the distributor rotor |
| Too much resistance in high voltage wires and spark plug plugs | Replace high voltage wires and spark plug plugs |
| Spark plugs are not connected in the order of cylinder firing | Install spark plug plugs in the firing order of the cylinders: 4-cylinder engine: 1-3-4-2, 5-cylinder engine: 1-2-4-5-3 |
| The spark plugs are flooded with fuel as a result of multiple starting attempts | Remove and dry the candles |
| The candles are damp and dirty on the outside | Clean and dry the spark plugs. Put silicone protective caps on the spark plugs and plugs |
| Ignition coil voltage is insufficient | Check the wiring of the high voltage transformer (ignition coils) for reliable fastening and good contact |
| Cracks on the ignition coil, traces of burning | Replace high voltage transformer |
| Loss of voltage due to electrical connections or wiring coming into contact with engine hoses | Place the wiring correctly |
| No power supply to the control unit | Check the wiring according to the wiring diagram (see subsection 10.20.8) |
Ignition system fault diagnostics (VW Transporter T4)
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The text has been checked: Orlov Dmitry
Previous articles
Selecting spark plugs for gasoline engines
Installing spark plugs
Spark plugs — general information
Checking and adjusting the ignition timing
Checking the Hall sensor
Checking the high voltage transformer
Selecting spark plugs for gasoline engines
Installing spark plugs
Spark plugs — general information
Checking and adjusting the ignition timing
Checking the Hall sensor
Checking the high voltage transformer
Next articles
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Transporter T4
Transporter T3
- General information
- User manual
- Maintenance
- Power unit
- Engine repair
- Ignition system
- Lubrication system
- Cooling system
- Fuel system (petrol)
- Fuel system (diesel)
- Injection system (petrol)
- Exhaust system
- Transmission
- Clutch
- Car gearbox
- Chassis
- Car suspension
- Steering
- Brake system
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- General information
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- Carburetor 34 PICT
- Carburetors 2E3 and 2E4
- Fuel injection system
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- Diesel engines
- Engine repair
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- Electrical equipment
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- Equipment and devices
- Power devices (diesel)
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