What is the reason why the car is not strong?

The oil system is a place where cars are prone to problems. The insufficient amount of fuel entering the combustion chamber may be caused by the blockage of fuel nozzle, oil leakage from oil pipe, reduced power of gasoline pump or blockage of gasoline filter. The powerlessness of the car is mainly caused by the sudden lack of oil in the engine. The gasoline filter is blocked, and the car may not be able to eat oil if it tilts. If the fuel nozzle is blocked or the gasoline pump fails, if the fuel cannot be injected at high pressure, the fuel cannot be atomized effectively, the combustion efficiency will decrease and the horsepower will not reach the expected goal.

If the car body suddenly weakens when leaning, it is likely that there is something wrong with the gasoline filter in the fuel system. Check whether the fuel pipeline has a special pressure gauge, and whether the engine has a valve interface reserved for checking the fuel pressure. If you buy a used car, you might as well replace it at the beginning to prevent future troubles. And if it doesn't improve after replacement, you need to check other oil circuit components.

2. Find the air intake system

The engine of a car must be able to run, except oil and air, otherwise the engine will not run smoothly. The most likely air intake problem is the blockage of the air filter or throttle system. If there is something wrong with these small parts, it will cause insufficient air intake. If there are problems with these parts, just repair or replace them in time.

3. Find the circuit system

The circuit system here mainly indicates the electricity consumption of the fire system. The high-voltage electricity generated by the circuit system is supplied to the spark plug through the wire, and the spark plug ignites the mixture in the combustion chamber. So wires and spark plugs are most likely to cause poor ignition. Spark plugs are consumables and need to be replaced after tens of thousands of kilometers of repair. As for the electric wire, it may also lead to poor conductivity due to its service life. Note: There are many cars without conductor design.

Extended data:

Engine is the power device of automobile, which consists of crank-connecting rod mechanism, valve train, cooling system, oil supply system, lubrication system, ignition system and starting system and five systems, but diesel engine has one less ignition system than gasoline engine.

1. cooling system: generally composed of water tank, water pump, radiator, fan, thermostat, water thermometer and drain switch. There are two cooling methods for automobile engines, namely air cooling and water cooling. Generally, automobile engines are mostly water-cooled.

2. Lubrication system: The engine lubrication system consists of oil pump, filter screen, oil filter, oil circuit, pressure limiting valve, oil gauge, pressure sensitive plug and dipstick.

3. Fuel supply system: The fuel system of a gasoline engine includes a gasoline tank, a gasoline meter, a gasoline pipe, a gasoline filter, a gasoline pump, a carburetor and an air filter. The fuel system of diesel engine includes main components such as fuel injection pump, fuel injector and governor, and auxiliary devices such as diesel tank, fuel transfer pump, oil-water separator, diesel filter, fuel injection advance device, high and low pressure oil pipes, etc.

4. Starting system: starter, battery, etc.

5. Ignition system: spark plug, high voltage wire, high voltage coil, distributor, ignition switch, etc.

6. Crank-connecting rod mechanism: connecting rod, crankshaft, bearing bush, flywheel, piston, piston ring, piston pin, crankshaft oil seal, etc.

7. Valve mechanism: cylinder head, valve cover camshaft, valve intake manifold, exhaust manifold, air filter, muffler, three-way catalytic supercharger, etc.

Chassis: Chassis consists of transmission system, running system, steering system and braking system. The function of the chassis is to support and install the assembly of the automobile engine and its components, form the overall shape of the automobile, and accept the power of the engine to make the automobile move and ensure the normal running. The chassis consists of five parts: transmission system, running system, steering system, suspension system and braking system.

References:

Automobile _ Baidu Encyclopedia