What to Do When the Car Engine Oil Dipstick Standard Position Diagram is Too Low?

What Causes Three-Way Catalytic Converter Failure?

Three-way catalytic converter failure causes: leaded gasoline, lubricants or additives containing lead, silicon, phosphorus, sealants containing harmful components like lead and silicon, overheating, severe impacts, etc. Below are detailed explanations of the related causes: 1. Leaded gasoline: Tetraethyl lead in leaded gasoline causes significant pollution and harm to the environment and human health. It also deposits on the active surfaces of the oxygen sensor and catalytic converter in the catalytic device, leading to 'lead poisoning' of the oxygen sensor and greatly reducing the purification efficiency of the three-way catalytic converter until it is damaged. Long-term use of leaded gasoline can even clog the honeycomb catalytic converter in the catalytic device with tetraethyl lead. 2. Lubricants or additives containing lead, silicon, or phosphorus: Many people assume that if the exhaust pipe doesn't emit blue smoke during engine operation, no lubricant enters the exhaust system. In reality, even a well-functioning engine burns a certain amount of lubricant that passes through the cylinder walls and PCV valve in the combustion chamber. Therefore, harmful components mixed into the lubricant can also cause the three-way catalytic converter to fail if they come into contact with the catalytic conversion device. 3. Sealants containing harmful components like lead and silicon: Engine repairs often require the use of various sealants. However, if sealants containing the aforementioned harmful components are applied to areas such as the intake manifold gasket or oil pan gasket, they can poison or even disable the three-way catalytic converter. 4. Overheating: The operating temperature of a three-way catalytic converter typically should not exceed 800°C. However, if a cylinder in the engine misfires, the exhaust may contain excessive unburned fuel gases, which can cause the three-way catalytic converter to fail or be damaged due to a significant increase in operating temperature. 5. Severe impacts: Since the core of the catalytic converter is a ceramic element, vehicles equipped with three-way catalytic converters are particularly vulnerable to 'bottoming out.' Severe impacts can shatter the catalytic converter core, rendering it useless.

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How to Determine When Engine Oil Needs Replacement?

Determining whether engine oil needs replacement can be assessed from two aspects. Here are the relevant details: 1. Judge by inspecting the oil quality. First observe its transparency - if the color is clear with slight impurities, it can still be used. If the color turns black and smells acidic, it's time to replace the oil because it has deteriorated and can no longer provide protection. 2. Check the oil's viscosity with your fingers. Dip some oil on your hand and test its viscosity between two fingers. If the oil shows no viscosity at all and feels like water, this indicates the oil has reached its usage limit and needs replacement to ensure proper engine operation.

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What to Do When the Engine Start-Stop Light Keeps Flashing?

The engine start-stop light keeps flashing, possibly due to a faulty clutch switch or damaged battery negative sensor, and requires immediate inspection at a 4S shop. The engine start-stop technology is a system that automatically shuts off the engine when the vehicle comes to a temporary stop (e.g., at a red light) during driving. When using the automatic start-stop system, the following precautions should be noted: 1. Turn off the start-stop in heavy traffic. Stop-and-go traffic not only causes engine vibration but also increases fuel consumption and places a burden on the engine. 2. Turn off the start-stop when going uphill or downhill. 3. Turn off the start-stop when using air conditioning. The vehicle's electrical power may not be sufficient to maintain air conditioning, affecting comfort. 4. Turn off the start-stop when wading through water. Braking while wading may create negative pressure in the exhaust pipe, allowing water to enter. Restarting the engine under such conditions could lead to severe engine damage.

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What does it mean when the oil light turns yellow?

The yellow oil light indicates insufficient oil level. If the vehicle hasn't reached its scheduled maintenance time, it reminds the owner to promptly add engine oil. Insufficient oil typically affects the overall lubrication effectiveness of the engine, especially for components relying on crankshaft splash lubrication, leading to accelerated wear or even damage. Below is relevant information about the yellow oil light: 1. When the engine yellow light comes on, it doesn't necessarily mean low oil level. This light is called the engine malfunction indicator lamp. If it illuminates, it indicates a fault in the engine or its auxiliary components, but specific fault information can only be detected using professional diagnostic equipment. Common causes for the engine malfunction indicator include oxygen sensor failure, knocking, or severe carbon buildup. 2. In most cases, the illumination of the engine malfunction indicator is largely caused by severe carbon deposits. This shouldn't be ignored as engine carbon deposits tend to accumulate in the throttle body and combustion chamber, affecting normal engine operation.

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What Does the Battery Model Number Mean?

Automotive battery model numbers convey the following information: 2V indicates the battery voltage is 12V; 70AH represents the battery's current value of 70A (AH); SAE denotes the American standard, while EN signifies the European standard, reflecting their respective design standards. 120RC refers to the full discharge time under specific voltage conditions according to certain standards (such as Asian or American standards). 760CCA indicates the energy value under full discharge (current) at specific voltage conditions. Below is additional information about automotive battery model numbers: 1. Other numbers or model codes include: 6: indicates the battery consists of 6 cells, each with 2V, totaling a 12V battery. DZM: stands for electric vehicle (D) power-assisted sealed lead-acid battery (ZM). 14.6: the maximum charge voltage for this battery is 14.6. Additional references: A. Currently, domestic battery models are mainly categorized into: National Standard, Japanese Standard, German Standard, American Standard, etc. B. Example demonstration using the "National Standard." 2. Special identifiers: DF appended to the model number indicates low-temperature reverse connection, e.g., 6-QA-160DF; D appended denotes good low-temperature starting performance, e.g., 6-QA-120D; HD appended signifies high vibration resistance type.

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What is the function of the cruise control system?

The cruise control system has the following five basic functions: 1. Speed setting: When the speed setting switch is pressed, the current driving speed can be stored and maintained. 2. Cancel function: When the brake pedal is pressed, the above function immediately disappears. However, the set speed continues to be stored. 3. Resume function: When the resume switch is pressed, the original speed can be restored. 4. Speed fine-tuning decrease. 5. Speed fine-tuning increase. The cruise control system is not suitable for all situations. It should be used on highways or fully enclosed roads. Because on non-enclosed roads, complex road conditions are not conducive to traffic safety.

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What to Do When the Car Engine Oil Dipstick Standard Position Diagram is Too Low?

What Causes Three-Way Catalytic Converter Failure?

How to Determine When Engine Oil Needs Replacement?

What to Do When the Engine Start-Stop Light Keeps Flashing?

What does it mean when the oil light turns yellow?

What Does the Battery Model Number Mean?

What is the function of the cruise control system?

Where is the windshield wiper switch located?

What causes engine idle shaking and stalling?

What does the 'R' in tires stand for?

How to Distinguish Between Dry and Wet Dual Clutch?