1. Abnormal noise from the car body
Abnormal noise from the car body is the most common. It is usually caused by insufficient rigidity of the car body or long-term intense driving. walking on bumpy roads will cause slight deformation of the car body steel frame, the most direct impact is abnormal impact or friction between the door and the car, or abnormal friction in some welding parts or of screws, which may also cause abnormal noise. ; and some cars have more wind noise, which is different from the shape-related car to a certain extent.
Solution:
These abnormal noises aren't terrible and won't have a big impact on the vehicle's overall performance, but they are annoying to deal with and difficult to cure. can only be caused by abnormal conditions. Add stampsrubber or sponges to areas of friction or impact.
2. Abnormal noises in the car
Abnormal noises in the car are the most common, and there are many places where abnormal noises occur, such as improperly installed decorative panels and the glove box. of the driver Loosening, impact of seat belt buckle, etc.
Solution:
Reset it automatically or fill it with soft objects.
3. Abnormal brake noise
If there is a “squealing” sound when applying the brakes, it is most likely caused by excessive wear of the brake pads, resulting in excessive gaps. Of course, improper use or deformation of the brake disc material, as well as unqualified hardness, porosity, friction characteristics and compression characteristics of the brake pads may cause abnormal noise.
Generally speaking, the duration ofThe life of the front brake pads is 30,000 kilometers and that of the rear brake pads is 120,000 kilometers.
Solution:
Abnormal brake noise can usually be resolved by replacing the brake pads. If the brake disc is damaged, it must also be replaced. When replacing, be careful. Model and other issues, otherwise the disparity will always persist. There will be an abnormal noise.
4. Abnormal suspension noise
The suspension system continues to operate while driving and the rubber bushings between the shock absorbers and each connecting rod inevitably wear out as the bushing ages or. falls, there will be abnormal metal impact sounds. If the shock absorber is broken, there will be a "dong dong" or "click" sound on bumpy roads.
Solution:
Generally, abnormal suspension noise cannot be solved by yourself. You must go to a repair workshoprepair or a 4S workshop for a specialized master to replace the parts. If this occurs, it must be resolved as quickly as possible. It is best to strengthen inspections during daily maintenance to avoid the occurrence of abnormal noises.
5. Abnormal noise from tires
Abnormal noise caused by tires is generally tire noise. The noise generated will also depend on the car's driving speed, tire type, tire pressure and road surface. conditions, etc. Factors produce various noises of different strengths and weaknesses. When there is a faint “pop” noise, it is mainly due to tire tread deformation, bagging, heavy wear, or insufficient air pressure. If there is a “clicking” sound, the tread may be mixed with small stones or nails. .
If the wheels make a colliding noisesion and metal friction while driving, it is likely that the shock absorbers and bearings will be damaged. Car owners should be careful when encountering these problems, even just driving nails can be dangerous.
Solution:
It was found that the tread was mixed with small stones.Wait, you can clean it yourself. Other issues should be brought to the attention of the car owner and handled by professionals.
6. Abnormal noise from steering wheel
Abnormal noise will be detected when the steering wheel is turned left and right. When an abnormal noise occurs halfway, it may be. essentially considered an abnormal noise coming from the steering gear. If it is difficult to determine the source of the abnormal noise after the steering wheel is rotated, the most common answer obtained by going to a 4S store for testingis the friction of the rubber sleeve of the steering wheel. the steering rod ball joint.
In addition, abnormal noises may also be caused by oil leakage from the steering gear cover, insufficient tightening of the power assist belt, or aging.
Solution:
The tie rod ball joint is getting old and the steering gear has problems and needs to be replaced in time.
7. Abnormal noises in the engine compartment
The situation of abnormal noises in the engine compartment is complicated and requires careful investigation.
If the belt squeaks or whistles, it is usually due to belt slippage. If it is an air leak noise, it may be caused by a blockage or breakage in the exhaust system or vacuum tubes; If there is friction and abnormal noise from external metal parts when the engine is running, this can usually be caused bys damage to the generator, water pump, etc.
Solution:
Find a professional to repair it as soon as possible
8 Abnormal noise in the gearbox
If the gearbox gear is broken. is moving while the car is driving If there is a "rustling" sound inside and a whistling sound when changing gears, this may be caused by worn gearbox bearings or gears or by rolling points.
If the gearbox makes an abnormal noise when accelerating and changing gears, the gearbox oil may contain metal powder, indicating excessive gear wear. the brake belt of the gearbox, clutch and other components.
Solution:
The gearbox is precision equipment, so no matter what abnormal noise occurs, it should be repaired in time.
I hope to adopt him!
What to do if the carre breaks down while driving
When using the diesel generator set, you should pay attention to the following:
1. pay attention to the occasion of use
1) When the generator is used, it should be placed outdoors or in a well-ventilated place in the engine room. It should not be near doors, windows and air vents. prevent carbon monoxide from entering the room.
2) Do not use generators near flammable and explosive materials.
3) The generator must be placed in a dry place. If it must be installed in the open air, it must be protected by a canopy type building to avoid contact accidents due to humidity.
2. Pay attention to fuel storage and use
1) Generator fuel should be stored in a dedicated warehouse, and the warehouse facilities should comply with regulationsof the firefighters.
2) The type of fuel used must comply with the requirements listed on the generator's instruction manual or label.
3) Before adding fuel, the generator should be turned off first, then added after the generator has cooled to prevent the fuel from gradually reaching the higher temperature parts and taking fire, causing disaster.
3. Pay attention to the connection of the generator line
1) The specifications of the outside line must be met.Requirements for the electrical loads used.
2) When using an extended wire, make sure it is well insulated from earth.
3) The generator output wire cannot be directly plugged into the residence's original electrical outlet to supply electricity. This will cause feedback and could cause electric shock accidents to users powered by the samee transformer. The correct connection is for an electrician to install a power transfer switch.
4. Keep diesel fuel clean.
Before using oil barrels to fill diesel fuel, the diesel fuel must undergo sufficient sedimentation, and the sedimentation time is preferably more than 3 days. When refueling, it must also be carefully filtered to avoid mixing of mechanical impurities. The oil storage container and refueling tools should also be kept clean during operation.
5. Other fuels cannot be mixed with the unit's diesel.
If there are other fuels in the diesel, the combustion performance will be significantly worse, resulting in starting difficulty or even starting failure. Any other fuel entering the cylinder will also remove the lubricating oil film from the cylinder and accelerate thecylinder wear.
6. Try to use high quality diesel.
The quality of diesel is directly related to the ability of the diesel engine to operate normally. If you use poor quality diesel, on the one hand, it will reduce the power of the diesel engine due to poor combustion, making it insufficient in power, on the other hand, if used for a long time, it will accelerate; wear of various parts of the fuel system and reduce the life of the diesel engine. Therefore, try to choose a diesel of good quality and appropriate brand.
When a car breaks down while driving, we often encounter situations where normal repairs cannot be carried out due to lack of spare parts and tools, leaving us often powerless. If we master emergency methods for common car breakdowns, we can eliminate car breakdowns.es in time and allow the car to continue driving.
1. Keep enough spare parts for emergency replacement.
When you get out of the car, try to bring as many accessories that are most easily damaged while driving so that they can be replaced in an emergency.
2. Use local materials and replace them temporarily.
When a part is damaged during driving and cannot drive normally, it can be replaced with parts on the car that do not affect driving, or it can be temporarily replaced with parts homemade from local materials. For example, use backpack belts or straps to replace damaged cooling fan drive belts.
3. In the event of a leak, block emergency response.
When driving, if you encounter oil leak, water leak oran air leak, you can use emergency blocking methods to remedy it. For example, a leak in a fuel tank can be repaired with glue or soap. If there is a hole, it can be plugged with a wooden plug and then repaired with glue.
4. Use adjustments to eliminate defects.
When some adjustable components fail, adjustment methods can be used to eliminate the fault and restore its performance. For example, if the clutch slips, the valve makes abnormal noise or the ignition timing is not even, the working performance can be restored through adjustment. .
5. Restore firmly, apply and bandage.
During driving, when it is necessary to stabilize and restore a defect, ropes, iron wires, wooden sticks, etc. are used. can be applied and attached. For example, if the steering tie rod is broken, you can useRead a wooden or iron rod to apply it then tie it with iron wire and tie both ends firmly before maintaining it..
6. If conditions permit, repair and use.
During driving, defective parts can be repaired for emergency treatment provided that they are in good condition and can operate reliably after repair and ensure safe driving. For example, if the crankshaft is burnt out and burn marks form on the surface of the journal, you can first use a sharpening stone to carefully grind the surface of the journal, and then use fine sandpaper of the same width than the bearing for grinding and polishing, and Finally, use the back of the emery cloth to repeatedly polish the surface of the log. The surface is very smooth and can be used temporarily in an emergency.
7. If parts are damaged, remove themfor emergency use.
During driving, damaged parts can be removed without affecting driving. For example, if the generator is damaged, it can be removed, the path between the regulator and the power supply can be cut and only the battery can be used to power the ignition system for short-term emergency treatment .
8. If it affects use, disconnect the emergency.
During driving, when a certain conductor is grounded and discharged, and it cannot be ruled out for a period of time and it affects the use, you can remove the cord. power supply, stop energizing the line, and only energize the ignition system.
9. If the machine parts are damaged, catch up urgently.
If any part of the machine is damaged while driving, you can also take emergency repair measures by repairing or repairing it.filling with other materials. For example, if the tire inner tube is punctured and leaking, it can be repaired by gluing.
10. Electrical components, emergency in case of short circuit.
During driving, when a circuit component is damaged and cannot be repaired or replaced with new parts, it can be short-circuited for temporary treatment (short-circuit method) if this is allowed. For example, if the switch is damaged and the electrical appliance cannot work, you can short circuit the two poles of the switch with wires so that the electrical appliance can work in an emergency. After arriving at a place with conditions, replace the damaged components in time.