What will happen to the oil pump without electricity in the high-voltage line of the car

1. The throttle body and idle motor are dirty.

Symptoms: Generally, you drive about 25,000 kilometers. Due to air quality problems, a lot of dirt will accumulate on the shut-off valve and idle valve of throttle body. The engine will appear when the engine is seriously dirty, the idle speed is too low, the idle speed stability is poor, and it is stuck when refueling. At this time, it is necessary to clean the throttle.

Solution: Clean the dirt on the stop valve and idle valve of throttle body, and it can meet the standard.

2. The nozzle is poorly atomized.

Symptoms: working for a long time will cause poor atomization of fuel injection, which is linear or dripping, and even lead to the phenomenon that the needle valve is not tightly closed and often drips oil or is stuck without fuel injection. When driving, the engine will feel weak, trembling and unstable, and the exhaust gas will exceed the standard. In severe cases, the engine will not start.

Solution: When the above faults occur, it is necessary to clean the fuel injector without disassembly. At the same time, the carbon deposit on the top of the combustion chamber and piston can be cleaned together and discharged with the exhaust gas. So as to restore the power and fuel economy of the automobile. Please note that after cleaning the fuel nozzle, you need to drive at a high speed above 100km/h, and the mileage is about 100km. It is generally recommended to clean the vehicle every 20,000 kilometers, and always keep the fuel nozzle, air intake system and combustion chamber clean.

3. The oil seal of the left axle shaft leaks oil.

Symptoms: Because the semi-axle oil seal is located in the lower part of the chassis, the working environment is extremely bad, and the semi-axle oil seal often damages and leaks oil during use. Because the axle shaft oil seal is damaged, there will be a lot of oil stains under the car, which can be visually detected by eyes.

Solution: When the oil seal of the axle shaft is found to leak oil, it should be replaced in the repair shop in time to avoid damaging the transmission and bringing you greater losses when the oil leakage is serious.

4. The four-wheel alignment values are not aligned.

Symptoms: After the four-wheel alignment value is inaccurate, the handling performance of the vehicle will be reduced. When the vehicle turns, it will feel the direction is heavy, the sensitivity will be reduced, and the phenomenon of running deviation and tire eccentric wear will appear.

Solution: When the above phenomenon occurs in the driving process of your vehicle, you must go to the repair shop to check and calibrate the four-wheel alignment value in time to restore the normal alignment angle of the wheels.

5. Poor replacement of spark plug

Symptoms: After the spark plug is damaged, you can obviously feel that the engine power is insufficient, the fuel is slow or clumsy when driving, the exhaust pipe will make a "sudden" sound, and the HC in the exhaust gas is seriously exceeding the standard.

Solution: When you find that your car has the above symptoms, you should immediately go to the repair shop to check the spark plug and replace it if necessary. It is recommended to check and replace the spark plugs every 30,000 kilometers.

6.20 12 2.0L impact of Buick Regal transmission during gear shifting.

Symptoms: When the PC valve fails, the main oil pressure of the transmission can't adjust the oil pressure in time, which leads to the impact when shifting gears.

Solution: When the above faults occur, you must go to the repair shop to replace the PC valve in time to avoid further damage to the transmission.

7. Damage and leakage of high-voltage lines

Symptoms: When the high-voltage line is aging and leaking, you can obviously feel that the engine power is insufficient, the car is accelerating while driving, the exhaust pipe will make a "sudden" sound, and the HC in the exhaust gas is seriously exceeding the standard. After opening the hood at night, you can start the engine to accelerate quickly, and blue sparks can be seen next to the high-voltage line.

Solution: When the above phenomenon occurs, the high-voltage line should be replaced in time.

8. Abnormal sound fault of fuel pump

Symptoms: Generally, the fuel pump of Buick Regal will make a "buzzing" sound before it is damaged. When the fuel pump is damaged, the fuel cannot be injected into the engine, and the engine will stop working.

Solution: When the fuel pump makes abnormal noise, it should be replaced in time to avoid the car breaking down.

9. Coolant circulating pump leakage and abnormal noise

Symptoms: Buick Regal's water pump has two common faults: First, the water seal of the water pump leaks. Two. The sound of the water pump is abnormal.

Solution: When the above phenomenon occurs, you should go to the repair shop to replace the water pump in time.

10. The EGR valve leaks, causing the engine fault light to light up.

Symptoms: Due to the air quality, a large amount of carbon remained in the EGR valve during long-term operation, resulting in the EGR valve being stuck. When the combustion chamber doesn't need waste gas dilution, the EGR valve can't be closed in time, which leads to engine idling jitter and lights the engine fault lamp. In severe cases, there may be a collision or not idling.

Solution: If the above phenomenon is found during driving, you should go to the repair shop to replace the EGR valve in time. After replacement, the electronic control unit is programmed and the engine state will return to normal.

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