What is the difference between a left turn and a left lane change?

What Causes Engine Vibration at Idle When Warm?

The causes of engine vibration at idle when warm are as follows: 1. Leaks in the intake pipe and various valves: Common issues include cracked intake manifolds or poor intake manifold sealing. When there is an air supply system leak, the engine's electronic control unit (ECU) receives inaccurate intake air volume signals, leading to misjudgment and resulting in unstable engine idle. 2. Excessive carbon buildup on valves and intake pipes: This causes the ECU to make incorrect judgments, failing to achieve sufficient power and resulting in idle vibration. 3. Malfunctions in idle control sensors and related circuits: For example, if the idle switch fails to close, the ECU mistakenly assumes the engine is under partial load, leading to incorrect air intake control. The idle control valve may respond slowly or get stuck due to oil contamination or carbon buildup, or the throttle valve may not close properly, preventing the ECU from making accurate idle adjustments. Additionally, issues such as short circuits or open circuits in sensors like the intake air temperature sensor, air flow sensor, coolant temperature sensor, and their circuits can also cause unstable engine idle. 4. Ignition system: Generally, spark plugs are a key component that can cause unstable engine idle. If a spark plug fails to ignite, it directly affects cylinder combustion, causing uneven power output among cylinders and leading to unstable engine idle.

11

4

Share

What to Do When Rearview Mirrors Are Unclear in Rainy Weather?

Solutions for unclear rearview mirrors in rainy weather are as follows: 1. Install rain visors or covers on the rearview mirrors. Rain visors are easy to install and inexpensive, effective in light rain without obstructing the view, but they are less effective in heavy rain and may affect aesthetics. 2. Apply soap to the mirror surface. Rub a wet cloth with soap and then wipe the mirror. After the mirror dries, gently remove any residue with a tissue. 3. Use water repellent. Water repellents mainly contain silicone oil, which alters the surface tension of water on glass to prevent droplets from sticking, similar to soap. However, the effect is not long-lasting. 4. Install heated rearview mirrors. Heated rearview mirrors are high-tech anti-fogging products, offering the best rain-clearing effect, but the modification cost is relatively high.

3

1

Share

When will Sichuan implement China VI emission standards?

Sichuan implemented the China VI emission standards on July 1, 2019. Additional information about China VI standards is as follows: 1. The China VI standard is an upgrade from China V, formulated based on international standards. It represents one of the strictest emission standards globally, matching the current EU vehicle fuel standards with some indicators even exceeding EU requirements. 2. Compared to China V, China VI fuel reduces carbon monoxide emissions by 50%, decreases total hydrocarbon and non-methane hydrocarbon emission limits by 50%, and tightens nitrogen oxide emission limits by 42%.

12

2

Share

What is the best location to install an ETC device in a car?

For small cars, the ETC device is generally installed in the upper middle part of the front windshield. For large vehicles such as trucks and buses, the installation location is in the lower middle part. The appropriate installation position should be at a height of no less than 1.2 meters and no more than 2.5 meters, with an installation angle between 30 to 90 degrees. If the vehicle has or will have a blast-resistant film, it may affect the signal transmission of the microwave communication link, so the device should be installed in the microwave sunroof strip. ETC stands for Electronic-Toll-Collection, which is an electronic toll collection system. To apply for an ETC device, you need to provide the original and photocopies of the vehicle owner's valid ID card and vehicle registration certificate. If the application is not made by the owner, the agent's valid ID card is also required. The photocopy of the vehicle registration certificate should include the page with the most recent annual inspection stamp. Additionally, a bank card for deducting highway tolls is required, and the vehicle must be registered under the name of an individual aged between 18 and 60. Here are some precautions for installing an ETC device: Do not obstruct the driver's view; it is best to install it behind the rearview mirror: Many car models have windshields with a large rearward tilt, which can reduce the driver's field of vision. If this is not considered during ETC installation, it may increase the driver's blind spots. Installing it behind the rearview mirror on the right side can help avoid obstructing the view. Do not interfere with charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement because it has a solar panel on the back that can charge itself. Therefore, during installation, avoid the blackened areas on the windshield and positions that may block the solar panel. Once installed, do not remove it arbitrarily: The button in the middle of the adhesive is an anti-tamper lever connected to a switch. After installation, the windshield will press the anti-tamper lever in. If the device is removed arbitrarily, the lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. In such cases, you will need to visit an ETC service point to unlock it. This mechanism is designed to prevent multiple vehicles from sharing one device. When using ETC, note the following: The ETC transaction sensing range is 8 meters. To prevent the ETC device of the vehicle in front from malfunctioning, maintain a distance of more than 10 meters from the vehicle ahead to avoid automatic toll deduction for the wrong vehicle. The recognition speed for ETC lanes is 20 kilometers per hour; driving too fast may result in failure to read the vehicle's device information, leading to toll deduction failure. If a debit card is bound to the ETC, insufficient balance may also cause toll deduction failure.

18

4

Share

Can a Car Be Equipped with a Rearview Camera?

It is possible to install a rearview camera in a car. More information about rearview cameras is as follows: 1. The rearview camera, also known as a parking assist system, reverse visual system, or vehicle monitoring system, is referred to in English as a vehicle-backup-camera. This system is widely used in various large, medium, and small vehicles for reversing or driving safety assistance. 2. After years of development, the rearview camera system has upgraded its technology, improved performance, and been applied to various vehicle types, such as trucks, buses, school buses, combine harvesters, corn harvesters, coaches, and construction machinery.

4

0

Share

What does MAP mean in a car?

MAP in a car refers to the GPS navigation function, which can display road conditions on the car's central control screen via satellite. More information about the GPS navigation function is as follows: 1. Car GPS navigation is a vehicle tracking system that uses satellite positioning to navigate vehicles, solving the problem of drivers getting lost due to unfamiliar road conditions. 2. Car GPS navigation has functions such as positioning, anti-theft, emergency rescue, car phone, and dispatch management. 3. Car GPS navigation can determine the vehicle's position via satellite positioning. Drivers can use GPS navigation to find their way in unfamiliar environments. If the vehicle is lost, it can also be located using GPS navigation.

7

1

Share

What is the difference between a left turn and a left lane change?

What Causes Engine Vibration at Idle When Warm?

What to Do When Rearview Mirrors Are Unclear in Rainy Weather?

When will Sichuan implement China VI emission standards?

What is the best location to install an ETC device in a car?

Can a Car Be Equipped with a Rearview Camera?

What does MAP mean in a car?

Can the rear seats of the BMW X1 be adjusted forward and backward?

How to Control the Ignition Advance Angle?

Is 15w40 engine oil suitable for winter use?

Can a C1 License Drive a Motorcycle?