Traditional Culture Encyclopedia - The 24 Solar Terms - Nissan pickup truck engine wobbles and the exhaust smells bad.
Nissan pickup truck engine wobbles and the exhaust smells bad.
1. The engine has serious carbon deposition.
The most common cause of automobile jitter is that the throttle valve is too dirty or the fuel injector has too much carbon deposit. When there is too much carbon deposit in the engine, the gasoline sprayed by the fuel injection head will be absorbed by the carbon deposit during cold start, which leads to the lean mixture during cold start and makes it difficult to start. In this case, only when the gasoline adsorbed by carbon deposits is saturated, it is easy to run into the car. After running into the car, the gasoline adsorbed on carbon deposits will be sucked into the cylinder by the vacuum suction of the engine for combustion, which will thicken the mixture and dilute the combustible mixture of the engine, resulting in idling jitter after cold start. The lower the temperature, the more oil is needed for cold start, and the existence of carbon deposit will affect the smooth start.
Solution: clean the oil circuit, check whether there is carbon deposit in the idle motor, and clean it.
2. Ignition system problem
Check the working conditions of spark plugs, high-voltage lines and ignition coils. The ignition system is not easy to use, and the spark plug is not in good condition, which will also lead to this failure.
Solution: Check whether there is too much carbon deposit in the spark plug and replace the spark plug.
3. The oil pressure is unstable
If you clean up the engine carbon deposit, clean the throttle, change the oil pad and spark plug, etc. You still find the car body shaking at idle speed. I suggest you go to the 4S shop to check whether the oil supply pressure and intake pressure sensors are normal. If the oil supply pressure of the oil pump is abnormal, or the intake pressure sensor has an incorrect value or works poorly, it will cause the body to shake.
Solution: Check the oil pressure and replace parts if necessary.
4, engine parts aging
Car jitter is also related to the aging of engine feet (also known as claw pads). The engine foot is actually the damping system of the engine. The engine foot is responsible for absorbing slight vibration when the engine is running. If there is something wrong with the engine foot, these vibrations will be transmitted to the steering wheel and cab, causing idling jitter.
Solution: Replace parts.
- Related articles
- Can you still cook bacon in spring? Boiling bacon in spring is not recommended.
- What does AMT mean in Chinese? Thank you.
- What to do on Lantern Festival?
- What is the name of the festival celebrated in some places on the sixth day of the sixth lunar month? What is its origin?
- Where do you go for a spring outing around Chengdu to enjoy flowers?
- How to draw a giant panda stick figure
- 1935 what is the 65438+ February 4th? When is the solar calendar?
- Idle egr opening is large.
- Look at the picture and answer the following questions (1). This day is the _ _ _ _ solar term in the northern hemisphere. (2) At this time, the geographical coordinates of the direct point of the sun
- What are the proverbs of summer fever?