Car troubleshooting Chevrolet Lanos 1

Table of malfunctions of the engine and its systems
The crankshaft does not rotate with the starter List of possible malfunctions Diagnostics Elimination Methods The battery is empty The voltage at the battery...

Compression test
We carry out a compression test for a general assessment of the technical condition of the parts of the cylinder-piston group and the valve mechanism of the...

Checking the starter enable circuit
If the starter does not work when the key in the ignition switch is turned to the "START" position, there may be a malfunction of both the starter itself and...

Checking the ignition coil and its circuits
Relieve pressure in the engine power system. We remove the tip of the high-voltage wire from the spark plug and insert a working spark plug into it. We arrange...

Checking the crankshaft position sensor and its circuits
If the crankshaft position sensor or its circuits are faulty, the engine will not start or run. With the ignition off, disconnect the engine management system...

Checking the throttle position sensor and its circuits
A malfunction of the throttle position sensor leads to unstable operation of the engine, a decrease in its power, jerks and failures when the vehicle is...
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Checking the phase sensor and its circuits
In the event of a malfunction of the phase sensor or its electrical circuits, the electronic unit of the engine control system switches the system into the...

Checking the coolant temperature sensor and its circuits
With the ignition off, disconnect the block of the engine management system wiring harness from the coolant temperature sensor (see Removing the coolant...

Checking the air temperature sensor in the intake manifold
With the ignition off, disconnect the block of the wiring harness of the engine management system from the air temperature sensor (see Removing the air...

Checking the speed sensor
With the ignition off.. ... disconnect the block of the wiring harness of the engine control system from the speed sensor. We connect the tester probes to the...

Checking the absolute pressure sensor in the intake manifold
With the ignition off, disconnect the block of the engine management system wiring harness from the intake manifold absolute pressure sensor (see Removing the...

Checking the injectors and their control circuits
We check the performance of the injectors when a malfunction is detected in the engine. We start checking the injector control circuits by checking the...

Checking the pressure in the engine power system
To check the pressure in the engine power system, you need a device that you can make yourself. To do this, you need a pressure gauge with a measurement range...

Check of a chain of inclusion of the fuel pump
If the fuel pump does not turn on when the ignition is turned on (its operation can be monitored by ear) - a malfunction of both the fuel pump itself and its...

Transmission, running gear, steering and braking system
Cause of malfunction Elimination Methods Clutch slips (when the pedal is pressed hard «gas» the engine revs up, but the car hardly accelerates) Lubrication of...

Table of electrical faults
Accumulator battery Cause of malfunction Elimination Methods The battery is empty. The starter does not crank the engine or cranks slowly. Lamps burn dimly The...