Diesel engine power system Opel Vectra A

Working principle of diesel engine
In a diesel engine, clean air is sucked into the cylinders and compressed to a high pressure, reaching the ignition temperature of diesel fuel. When the piston...

Checking glow plugs
Test conditions: cold engine, fully charged battery (voltage not less than 11.5 V). Disconnect wires from glow plugs. Connect one lead of the voltmeter to the...

Checking the preheating system
TC4EE1 1.7L turbocharged engine The pre-heating system performs continuous self-monitoring and provides information on emerging malfunctions of the glow plugs...

Bleeding air from the fuel system
It is necessary to remove air from the fuel system if it was opened or the car was driving with an almost empty tank. Check for fuel in the fuel tank. Start...

Checking and adjusting idle speed
To regulate the idle speed, a tachometer specially designed for diesel engines, powered by photocells, is used. For example, Gossen's Zikomat tachometer has a...

Removal and installation of nozzles
Faulty injectors can cause a loud knocking sound when the engine is running and damage the bearings. In the event of a malfunction of the injectors, the engine...

Fuel Injection Advance Check
The fuel injection advance can be checked both with the engine installed and with the engine removed. The test option with the motor installed is described...

Fuel filter heater
When the ambient temperature drops, the viscosity of diesel fuel increases due to the solidification of the paraffin contained in it. Therefore, firms trading...

Maintenance of the diesel engine power supply system
The high-pressure fuel pump is maintenance-free and should be replaced by a specialized repair shop if it malfunctions.

Replacing the air filter element
The paper filter must be replaced every 30,000 km. If heavily soiled, the filter must be cleaned or replaced. Disconnect the hose going to the intake manifold...

Draining the water from the fuel filter and replacing it
The fuel filter must be drained every 12 months and replaced every 30,000 km. Draining Place a container under the fuel filter to collect water. Unscrew the...

Malfunctions of the power supply system of diesel engines
Before troubleshooting using the table below, the following conditions must be met: the engine is not started incorrectly, there is fuel in the fuel tank,...