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what does a bad speedometer cable sound like
What does a bad speedometer cable sound like: The strands of the cable are not tightly hinged, but loose. After electrification, under the action of electromagnetic force, it will vibrate at a frequency of 50HZ.After the car has been used for a certain maintenance period, there will be more or less problems. When a car breaks down, it is important to be able to accurately judge the damaged part and troubleshoot as soon as possible, especially for some simple car alarms, which the car owner should pay more attention to.
Car maintenance engineers teach you a few tricks, so that car friends can identify and prevent common alarms of car failures from the different sounds from the car.
1. Impact sound: A heavy metal iron shock is likely the result of long-term severe wear of the engine mounts, which can occur when the engine speed changes. But it is also possible that the front and rear suspension of the car is damaged, or the transmission fluid is too low.
2. Knocking sound: The sound is similar to a heavy knock, but much quieter. When this sound occurs, the car mainly considers whether low-quality gasoline is used. If low-quality oil is used, there may be a popping sound.
3. Tick: It could be that the drive shaft universal joint is broken, it could be that a small stone in the tire hit the tire or the fan blade is bent and loose.
4. Hiss: Like a balloon leaking, most of it is empty or there is a problem with the cooling system. If the cooling system fails, fluid can be seen on the underside of the car. In addition, this sound can also occur when the tire is severely flat or the vacuum chamber of the engine is leaking.
5. Thump: Like a dull knock on the door. This kind of situation is mostly caused by internal reasons of the engine, it is likely to be caused by the aging of the vehicle, and damage to bearings or engine valves can also be caused.
6. Howling: It mostly occurs when the car is turning. It could be that the fan drive belt is loose or worn. Sometimes the air volume of the tire is insufficient, and this sound will also appear.
7. hmm: The sound is like a bee, and it's most likely due to some loose parts. Plastic or metal parts on the underside of the engine and mounting brackets for the air conditioner or compressor are the most common.
8. Transpose: The uncoordinated sound of the aging main motor.
9. Screaming: Very jarring. Usually there is a problem with the brakes. Listen to the position of the voice debate, and you will know the trouble in the car. As a rider, how can you not master such a simple and practical skill?
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