Except for a few important electrical connectors on Changan Car that use gold contacts, most other connectors use copper-zinc alloy. Under normal circumstances, its reliability is guaranteed, but if the car is operated for a long time in a high temperature, high humidity, and fluctuating environment, these connectors may become loose, rusted, have poor contact, and some strange electrical problems are mostly caused by this.
Therefore, during routine maintenance, you should focus on checking the connectors of the computer, sensor, fuel injector and other components on the car.
Chassis components-from the perspective of use, chassis components are actually more prone to problems than engines, but during routine maintenance, many people often ignore the inspection of chassis components. The parts of the chassis that are prone to failure are mainly concentrated in:1. Shock absorber: Oil leakage is a precursor to shock absorber damage. In addition, a significant increase in driving fluctuations or a longer braking distance on bad roads is also a sign of shock absorber damage.
2. Rubber sleeve of suspension control arm: If the rubber sleeve is damaged, the vehicle will have a series of problems such as deviation and swinging, and even four-wheel alignment will be useless. If you carefully check the chassis, the damage of the rubber sleeve is easy to find.
3. Steering rod of Petrol Car: Loose steering rod is a serious safety hazard. Therefore, during routine maintenance, you must carefully check this part. The method is very simple: grab the rod and shake it hard. If there is no shaking, it means that everything is normal. Otherwise, the ball head or rod assembly should be replaced.
4. Clean the exhaust pipe: The exhaust pipe is one of the most easily damaged parts under the car. Don't forget to take a look during maintenance. Especially the exhaust pipe with a three-way catalytic converter should be carefully checked.
5. Universal joint dust cover: Don't underestimate the dust cover outside the universal joint. It not only has a dustproof effect, but also prevents the loss of grease around the universal joint. Once the dust cover is damaged, the grease will be lost quickly. Due to dry grinding, the universal joint is easy to be damaged.
Petrol Car tires - pay attention to replacing Petrol Car tires regularly. No matter how durable a set of Petrol Car tires is, they cannot be used for a lifetime. Some people have an easy job and use their cars less frequently. After a set of Petrol Car tires have been used for a few years, the tread pattern may appear to be intact, but in fact, the performance of Petrol Car tires will gradually age and the quality will gradually decline with the increase of years. If you don't know this, it is a wrong view to think that "the surface looks good" means that the Petrol Car tires are fine.