Opel Omega

since 1993-1999 of release

Repair and car operation



Opel Omega
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Repair of engines
+ 4. Heating system and ventilation
- 5. Fuel, exhaust systems
   + 5.1. Petrol engines
   + 5.2. Diesel engine in volume 2,0 liters
   - 5.3. Diesel V6 2,5-liter engine
      5.3.1. Principle of operation of the diesel engine
      5.3.2. Turbokompressor
      5.3.3. System of a retsirkulyatsiya of the fulfilled gases (EGR system)
      5.3.4. Device of preheat of diesel engines
      5.3.5. System prednakala/glow plugs
      5.3.6. Relay of system of preheat
      5.3.7. Air removal from a power supply system
      5.3.8. Fuel pump of a high pressure (TNVD)
      5.3.9. Nozzles
      5.3.10. Check / adjustment of the beginning of giving of TNVD
      5.3.11. Inlet collector
      5.3.12. Main malfunctions of diesel system of injection
      5.3.13. System of production of the fulfilled gases of diesel engines
+ 6. System of start of the engine
+ 7. Ignition system
+ 8. Coupling
+ 9. Transmissions
+ 10. Main transfer, semi-axes
+ 11. Brake system
+ 12. Suspension bracket and steering
+ 13. Body
+ 14. Body electric equipment


5.3.12. Main malfunctions of diesel system of injection

GENERAL INFORMATION

Before to find out malfunctions of system of injection, should be satisfied the following conditions:

  – a mistake exception at start;
  – availability of fuel in a tank;
  – whether as it should be engine;
  – whether the battery is charged;
  – whether the starter on demanded turns rotates.


Prevention

If fuel pipelines act in film, they should be in advance cleared by a method of cold cleaning.


REASON
ELIMINATION METHOD
The engine is not got or got badly
There is no preliminary incandescence of the engine
To check preheat system.
There is no tension on the electromagnetic locking valve of supply of fuel
To connect the device of control of tension to the valve. The light-emitting diode should light up, otherwise find rupture of a wire and eliminate.
The electromagnetic locking valve is faulty
To check durability of installation and contact to the case. Alternately to switch on and off ignition, the valve thus should click.
The system of supply of fuel is faulty
To check supply of fuel.
Toplivoprovoda pognuty, littered, leaky, cracked
To clean топливопроводы.
The fuel filter is littered
To replace the fuel filter.
Tank ventilation is blocked. The fuel filter in a tank is littered
To clean.
Nozzles are faulty
To check nozzles, in turn to release cap nuts, checking operation of cylinders.
The moment of the beginning of giving is not adjusted
To check the moment began giving, to adjust.
Faulty TNVD
To establish the new pump.
Failures of operation of the engine on single turns, at start
Fuel hoses on the fuel pump and on the fuel filter are weakened
To replace fuel hoses, to fix collars, to tighten hollow bolts.
The system of supply of fuel is faulty
To check supply of fuel.
Toplivoprovoda pognuty, littered, leaky, cracked
To clean топливопроводы.
The fuel filter is littered
To replace the fuel filter.
Tank ventilation is blocked. The fuel filter in a tank is littered
To clean.
Nozzles are faulty
To check nozzles, in turn to release cap nuts, checking operation of cylinders.
The moment of the beginning of giving is not adjusted
To check the moment began giving, to adjust.
Faulty TNVD
To establish the new pump.
Fuel consumption is too high
The air filter is polluted
To replace a filter element.
The fuel system is not tight
Visually to check everything топливопроводы (submitting, returnable, injection), the fuel filter and TNVD.
The return pipeline is littered
To pump over air the return pipeline from the delivery pump to the fuel tank. To replace a throttle in a hollow bolt of the return pipeline.
The moment of the beginning of giving of TNVD is not adjusted
To adjust the moment began giving.
The control lamp of system of preheat does not burn
The filament lamp on a guard of devices is faulty
Lamp to replace.