Diesel engine power system Opel Vectra A

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

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

Checking the preheating system
1.7L turbocharged TC4EE1 engine The preheating system constantly monitors itself and provides information about any malfunctions of the glow plugs in the form...

Removal air from the fuel system
It is necessary to remove air from the fuel system if it has been opened or the car has been driven with an almost empty tank. Check the presence of fuel in...

Checking and adjusting idle speed
To regulate the idle speed, a tachometer specially designed for diesel engines is used, which operates on photocells. For example, the Zikomat tachometer from...

Removal and installation injectors
Faulty injectors can cause a loud knocking noise when the engine is running and damage the bearings. If the injectors are faulty, start the engine and loosen...

Checking fuel injection advance
Fuel injection advance can be checked both with the engine installed and with it removed. The option for checking with the engine installed is described below....

Fuel filter heating
When the ambient temperature drops, the viscosity of diesel fuel increases due to the hardening of the paraffin contained in it. Therefore, companies selling...

Maintenance of the fuel system of diesel engines
The high-pressure fuel pump does not require maintenance; if a malfunction occurs, it can be replaced in a specialized repair shop.

Replacing the air filter element
The paper filter must be replaced every 30,000 km. If it is heavily contaminated, the filter must be cleaned or replaced. Disconnect the hose from the filter...

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

Malfunctions of the fuel system of diesel engines
Before troubleshooting using the table below, the following conditions must be met: improper engine starting has been ruled out, there is fuel in the fuel...

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