How to Read an Automotive Air Conditioning Pressure Gauge?

What is the small light below the car headlight called?

The small light below the car headlight is called a fog light. Here are specific details about fog lights: Types: In addition to the front high beams, low beams, headlights, and small lights, and the rear running lights and brake lights, most cars also have a set of fog lights installed in inconspicuous locations at the rear. Rear fog lights are red signal lights installed at the rear of the vehicle to make it easier for other road traffic participants to spot the vehicle in low-visibility conditions such as fog, snow, rain, or dust. These lights have a higher luminous intensity than tail lights. Position: Fog lights are installed at the front of the car, slightly lower than the headlights, and are used to illuminate the road during rainy or foggy weather. Because visibility is low in foggy conditions, the driver's line of sight is limited. The lights can increase the visible distance, especially yellow fog lights, which have strong light penetration. They enhance the visibility for both the driver and other traffic participants, allowing approaching vehicles and pedestrians to spot each other from a greater distance.

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What does 'one gear per clutch' mean?

Press the clutch pedal all the way down, shift into one gear, then release the clutch. When the clutch is pressed down and released, only one gear can be engaged. This is called 'one gear per clutch'. Below is relevant information about vehicle gear shifting: 1. Precautions: When downshifting, the method of double-clutching plus one blip of the throttle should be used. The principle of downshifting with throttle blip is: higher speed requires a bigger 'throttle blip', lower speed requires a smaller one; lower engine speed requires a bigger 'throttle blip', higher speed requires a smaller one; flat roads require a bigger 'throttle blip', uphill requires a smaller one. 2. Techniques: Gear shifting should be timely, accurate, smooth, and quick. When starting a car, generally use the low gear (first gear). After starting, as long as road conditions permit, quickly and timely shift up through the gears to higher gears.

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What does the CAN communication fault in Auman truck engine mean?

This fault code indicates a short circuit in the engine communication line. Turn off the power and measure the resistance to check if it is 60 ohms. Below is relevant information about the CAN communication bus in vehicles: 1. Overview: CAN stands for Controller Area Network, developed by the German company BOSCH, renowned for its research and production of automotive electronic products. It has become an international standard (ISO11898) and is one of the most widely used field buses globally. 2. Advantages: CAN's high performance and reliability have been recognized, and it is widely applied in industrial automation, marine, medical equipment, industrial devices, and more. Fieldbus is one of the hotspots in the development of automation technology today, hailed as the computer local area network in the automation field. Its emergence provides strong technical support for real-time and reliable data communication between nodes in distributed control systems.

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What is the reason for the normal temperature gauge but the red light is on?

The normal temperature gauge but the red light is on is caused by a false alarm of the temperature warning light. When the owner adds antifreeze, due to the excessively low position of the vent hole on the side of the reservoir damping tube, a compressed air column forms in the damping tube, causing the liquid level in the damping tube to be much lower than that in the expansion tank and near the sensor alarm point. The vibration during driving can easily trigger a false alarm. Here is some information about the temperature gauge: Normal temperature: The temperature gauge shows the coolant temperature, typically displaying 70-90 degrees after the engine warms up, which is normal. When the water level in the coolant tank is low, the temperature will rise, and water needs to be added. If the temperature gauge approaches the H or the red danger zone, and the temperature warning light comes on in severe cases, it indicates that the engine coolant temperature is too high. Working principle: The sensor of the temperature gauge is a thermistor-type sensor, fixed with threads on the engine coolant passage. The thermistor determines the current flowing through the coil winding of the temperature gauge, thereby driving the pointer to swing.

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What Should a Vehicle Technical File Include?

Vehicle technical file refers to the historical records that document the basic information, main performance, operational usage, major component replacements, inspection and maintenance records, as well as accident handling and other related vehicle data throughout the entire lifecycle of a vehicle, from its purchase as a new car to its scrapping. The detailed contents recorded in the vehicle technical file are as follows: Basic information and main performance of the vehicle: Records the specifications, equipment, technical performance, modifications, and changes of major assemblies. Operational usage: Records the mileage, transportation turnover, fuel consumption, tire usage, and mechanical failures of the vehicle. Inspection and maintenance records: Documents the content, results, and timing of inspections, as well as the location and cause of identified faults or potential issues, solutions, historical maintenance records, and the technical condition of major assemblies. Accident handling: Mainly records the occurrence, causes, and resolution outcomes of mechanical failures or accidents involving the vehicle. The role of the vehicle technical file is to understand the vehicle's performance, technical condition, and changes, grasp the patterns of vehicle usage and maintenance, and provide a basis for vehicle maintenance, modification, and spare parts inventory. It also serves as a reference for evaluating the level of technical management and provides feedback to vehicle manufacturers to improve manufacturing quality. Therefore, it is an important foundational task in vehicle technical management. Specifically: It helps in mastering the changing patterns of vehicle performance and gaining the initiative in vehicle management, usage, upkeep, and repair. It provides reliable technical data and scientific basis for the planning of vehicle maintenance, repairs, and material procurement. It offers research and improvement materials for technical evaluations of vehicles, enhancements in vehicle structure and performance, and spare parts production. It provides analytical data for selecting vehicle models when expanding a company's fleet. It serves as a basis for evaluating the technical management practices at the grassroots level.

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Is It Normal to Drive 400 Kilometers on a Full Tank of Gas?

It is a normal situation because fuel tank sizes and fuel consumption rates vary, leading to different driving ranges. Below is relevant information about fuel consumption: 1. Fuel consumption per 100 kilometers: This refers to the amount of fuel a vehicle consumes when driving 100 kilometers at a certain speed on the road. It is a theoretical indicator for the vehicle. Manufacturers measure this value by installing a dynamometer on the vehicle chassis in controlled environments, converting the results into speed parameters, and then calculating the theoretical experimental fuel consumption data per 100 kilometers at specified speeds. 2. Road condition fuel consumption: Also known as multi-condition road cycle fuel consumption, this is a fuel indicator calculated based on repeated tests where the vehicle is driven at specified speeds and times on designated roads. The standard specifies that each cycle includes various driving conditions, recording parameters such as gear shift timing, parking duration, driving speed, acceleration, braking, and deceleration. This method yields values that are closer to real-world conditions.

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How to Read an Automotive Air Conditioning Pressure Gauge?

What is the small light below the car headlight called?

What does 'one gear per clutch' mean?

What does the CAN communication fault in Auman truck engine mean?

What is the reason for the normal temperature gauge but the red light is on?

What Should a Vehicle Technical File Include?

Is It Normal to Drive 400 Kilometers on a Full Tank of Gas?

What are the three required certificates for a motorcycle?

What does GCU-R fault mean?

Why does the motorcycle jerk when accelerating?

What is the SPN3226 fault?