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What Causes Battery Cable to Overheat?

1 Answers

MacVera

09/01/25 8:00am

Car battery cable overheating is caused by the positive terminal heating up. More extended information is as follows:1、Overview: The car battery, also known as a storage battery, is a type of battery that works by converting chemical energy into electrical energy. Typically, the battery referred to is a lead-acid battery, which is mainly made of lead and its oxides, with sulfuric acid solution as the electrolyte.2、Others: Loose battery cable connections can cause overheating; simply reconnect them properly. Alternatively, remove the terminal, clean the contact surfaces on both sides, apply grease, and tighten the battery cable. This usually fixes the issue. If the battery itself is faulty, replacing the battery is necessary. Another possible cause is high engine idle speed. First, clean the throttle body and idle valve, as excessive carbon buildup or a stuck idle valve can lead to high idle speed or shaking.

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How to cancel the maintenance reminder on the Lavida?

Methods to cancel the maintenance reminder on the Lavida: 1. Press and hold the small protruding button on the dashboard without releasing it, then use the other hand to turn on the car's ignition switch; 2. Release the small button on the dashboard and press the minute adjustment button for the time setting; 3. Then turn off the ignition switch while also releasing the hand that was pressing the time adjustment button; 4. Restart the ignition switch, and the maintenance light on the dashboard will turn off. The Lavida is a sedan produced by Shanghai Volkswagen, with dimensions of 4605mm in length, 1765mm in width, and 1460mm in height, a wheelbase of 2610mm, and a top speed of 200km/h.

What is the difference between red antifreeze and green antifreeze?

There is essentially no difference between red antifreeze and green antifreeze. Antifreeze itself is a colorless and transparent liquid, and the different colors are formed by adding dyes to the liquid to create bright colors, which are only meant to distinguish it from other liquids and prevent accidental ingestion. This helps users differentiate when selecting antifreeze, preventing the mixing of different antifreeze types and potential damage to the engine. Antifreeze is a coolant containing special additives, primarily used in liquid-cooled engine cooling systems. It has excellent properties such as preventing freezing in winter, boiling in summer, and protecting against scale and corrosion throughout the year. Generally, the freezing point of antifreeze should be selected based on the local winter minimum temperature, typically between -10°C and 5°C.

Why is the car heater not very hot?

The reasons why the car heater is not very hot are: 1. The thermostat is always open or opens too early, causing the cooling system to start the large circulation prematurely. When the external temperature is very low, especially when the car is moving, the cold wind quickly cools the antifreeze, preventing the engine water temperature from rising; 2. The water pump impeller is damaged or slips, resulting in insufficient flow through the heater core, and the heat cannot rise; 3. There is airlock in the engine cooling system, which leads to poor circulation of the cooling system, causing high water temperature and the heater not being hot. If there is always air in the cooling system, it is due to the cylinder gasket being damaged and allowing air into the cooling system. If the inlet pipe of the heater core is very hot while the outlet pipe is relatively cool, this indicates that the heater core is clogged and needs to be replaced.

What are the differences between the Civic JinDong version and RanDong version?

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How to Properly Shut Down a Keyless Automatic Transmission Vehicle?

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Where should the jack be placed to lift a car?

A jack should be placed on the raised position of the chassis near the tire. A jack is a lightweight lifting device that uses a rigid lifting component as its working mechanism to lift heavy objects within a small stroke range through a top support seat or bottom support claw. Jacks are primarily used in factories, mines, transportation sectors, and other industries for vehicle repairs, lifting, and support tasks. Steps for using a jack: 1. Before using the jack, ensure the car is parked and the engine is turned off. Place a safety warning triangle 50 to 150 meters behind the vehicle. 2. Align the jack with the support point under the car's chassis. 3. Connect the accompanying wrench and sleeve to the back of the jack, then rotate it to adjust the jack's height. Avoid applying excessive force during operation, as this may cause the jack to deform.

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