How to use the navigation system in Dongfeng Fengshen AX7?

What Causes Vehicle Vibration at 120 km/h?

The causes of vehicle vibration at 120 km/h are: 1. Uneven brake disc surface with excessive radial runout; 2. Rim deformation; 3. Excessive high or low tire pressure; 4. Significant wheel alignment data deviation; 5. Abnormal tire wear; 6. Tire dynamic balance failure; 7. Damper failure; 8. Engine power failure. The solutions for vehicle vibration at 120 km/h are: 1. Inspect and adjust front wheel alignment angles and toe-in; 2. Perform wheel dynamic balance inspection; 3. Adjust tire pressure or replace tires; 4. Perform driveshaft dynamic balance inspection; 5. Choose high-quality engine oil; 6. Inspect engine ignition system.

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How Many Liters of Oil Does the Camry Transmission Need?

The amount of transmission oil required for a Camry depends on the oil change method: 1. Approximately 6 liters for conventional gravity oil change; 2. Around 12 liters for machine exchange oil change. The Camry is a mid-size sedan with the following dimensions: length 4885mm, width 1840mm, height 1455mm, wheelbase 2825mm, fuel tank capacity 60 liters, and trunk capacity 593 liters. It is equipped with a 2.0L naturally aspirated engine producing maximum power of 131kW at 6600rpm and peak torque of 210Nm between 4400-5200rpm, paired with a 10-speed continuously variable transmission.

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How to Determine if a Solenoid Valve is Damaged?

Determining whether a solenoid valve is damaged can be done through the following methods: 1. After energizing the coil, insert a metal tool directly into the coil hole and check if the metal tool can be attracted; 2. Measure the resistance of the coil with a multimeter. If the resistance shows infinity or is very small, it can be determined that the valve is damaged. A solenoid valve is an electromagnetically controlled industrial device used as an automated basic component for controlling fluids. It belongs to the category of actuators and can work with different circuits to achieve the desired control, ensuring precision and flexibility. Solenoid valves can be classified into: 1. Direct-acting solenoid valves; 2. Step-by-step direct-acting solenoid valves; 3. Pilot-operated solenoid valves.

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What Does Tire Size Represent?

Tire size represents the section width and the aspect ratio as a percentage, followed by the tire type code, rim diameter, load index, and speed rating. Taking 175/70R14 77H as an example, 175 indicates the tire width is 175mm, 70 means the tire's aspect ratio is 70%, the rim diameter is 14 inches, the load index is 77, and the speed rating is H. The method to measure tire size is: 1. Use a metal tape measure to wrap around the tire along the centerline of the tread or the highest point near the centerline to measure the outer circumference; 2. Select a sidewall area without markings, decorative lines, or scuff guards, and use a vernier caliper or calipers to measure the section width at approximately four equally spaced points around the tire; 3. Calculate the data accordingly.

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What is the situation with the car tire pressure warning?

Car tire pressure warning occurs due to the following reasons: 1. Air leakage from the tire or valve; 2. Wheel hub deformation leading to reduced tire sealing performance; 3. Long-term overloading of the vehicle causing uneven tire stress; 4. Thermal expansion and contraction resulting in insufficient tire pressure. Tire pressure refers to the air pressure inside the tire, with a normal monitoring range between 2.2 and 2.5 bar. Methods for monitoring tire pressure include: 1. Direct tire pressure monitoring; 2. Indirect tire pressure monitoring; 3. Using a smart tire monitoring system for detection. The impacts of low tire pressure are: 1. Increased contact area between the tire and the ground, leading to abnormal tire temperature; 2. Severe deformation of the tire sidewall, accelerating the aging of internal steel wires and fabric layers, which may cause a blowout; 3. Increased fuel consumption; 4. Reduced tire lifespan.

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What are the normal high and low pressures for a car air conditioner?

The normal high pressure for a car air conditioner is between 15 to 18 bar, and the low pressure is between 1.0 to 2.5 bar. Solutions for excessively high pressure in the car air conditioner include: 1. Clean the dust and dirt from the air vents and the interior of the cabin; 2. Regularly check the refrigerant level in the air conditioning system to ensure it is normal; 3. Inspect the compressor belt for proper condition; 4. Check if the refrigerant level is sufficient and replenish it in time. Solutions for excessively low pressure in the car air conditioner include: 1. Refill the air conditioning refrigerant according to the manufacturer's standards; 2. Inspect and repair any leaks in the air conditioning system, replacing any leaking components.

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How to use the navigation system in Dongfeng Fengshen AX7?

What Causes Vehicle Vibration at 120 km/h?

How Many Liters of Oil Does the Camry Transmission Need?

How to Determine if a Solenoid Valve is Damaged?

What Does Tire Size Represent?

What is the situation with the car tire pressure warning?

What are the normal high and low pressures for a car air conditioner?

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