Can a Dash Cam Record Conversations Inside the Car?

What is the reason for the oil pump having no pressure?

Oil pump has no pressure due to a damaged overflow valve. Below are the specific details related to fuel consumption: 1. Fuel consumption: The fuel consumption of large-displacement cars is as high as that of family cars. 2. Comparison: A fuel consumption of 6 liters per 100 kilometers, on the same route, a 1.6L car, the Octavia consumes 7 liters. Sports car drivers usually give much more throttle, consuming more fuel than street cars, resulting in higher fuel consumption. A liter-class sports car, during aggressive acceleration or high-speed runs, has fuel consumption comparable to the combined fuel consumption of a 3.0L car. 3. Fuel: Most cars use gasoline, so the energy from the fuel is the same. The relatively higher fuel consumption of the Octavia comes from high wind resistance, a compact structure leaving no room for fuel-saving technologies to be applied, and a design philosophy that emphasizes high-revving power extraction.

13

5

Share

How to Pay the Fine for Speeding Violations?

Generally, the fine for speeding can be paid at the latest before the vehicle's next annual inspection. The deadline for traffic violation fines is usually based on the date of the violation notice issued by the traffic police. After receiving the violation notice, the party involved must pay the fine at a designated bank within 15 days. If the payment exceeds 15 days, a late fee will be charged. For violations captured by electronic surveillance, the traffic management department will not issue a notice. The "Regulations on the Application and Use of Motor Vehicle Driving Licenses" effective from January 1, 2013, stipulate that driving medium-sized or larger passenger or cargo vehicles, school buses, or hazardous material transport vehicles on highways or urban expressways at speeds exceeding 20% of the limit will result in a 12-point deduction. The traffic police department will legally confiscate the driver's license. The motor vehicle driver must report to the traffic management department of the public security authority at the place where the driving license was issued or where the violation occurred within 15 days to participate in a 7-day study of road traffic safety laws, regulations, and related knowledge.

6

2

Share

What Causes the Dashboard Lights to Go Out and the Car to Fail to Start Immediately After Starting?

The reasons why the dashboard lights go out and the car fails to start immediately after starting include low-voltage system failure and high-voltage system failure. The following are detailed explanations: Common faults in the low-voltage circuit: Insufficient battery charge; poor or incorrect wiring connections; poor battery grounding; damaged distributor or Hall sensor; damaged or poorly connected ignition switch; damaged or poorly connected transistor ignition control unit. The diagnostic method for low-voltage circuit faults mostly involves using an ammeter or voltmeter to check each wire sequentially to eliminate the fault point. Common faults in the high-voltage circuit: Disconnected or leaking high-voltage wires; cracked or punctured distributor cap; burned, corroded, cracked, or punctured distributor rotor; excessive or insufficient spark plug electrode gap; excessive carbon buildup on spark plugs; damaged spark plug insulator; damaged or disconnected ignition coil. Most high-voltage circuit faults are diagnosed using the high-voltage spark test method, which involves removing the central high-voltage wire from the distributor or a cylinder's high-voltage wire, placing the wire end 3-6mm away from the cylinder block, and starting the engine to test for sparks.

1

5

Share

Will I Get Points Deducted for Stopping in a Right-Turn Lane for 30 Seconds?

Stopping for 30 seconds at a right-turn lane at an intersection, if it affects the passage of vehicles behind, is considered illegal parking but does not result in point deduction. Below is the principle of how electronic surveillance captures red-light running: 1. First photo: When the front wheels of the vehicle press over the induction coil on the ground, the electronic system captures the first photo of the vehicle. 2. Second photo: When the rear wheels of the vehicle press over the induction coil on the ground, the electronic system captures the second photo of the vehicle. 3. Third photo: When the vehicle passes through the intersection and presses over the induction coil on the opposite side of the ground, the electronic system captures the third photo of the vehicle. Below is additional related information: 1. Penalty: Running a red light is a violation of traffic signal rules. Motor vehicle drivers who pass through intersections in violation of traffic signal rules will face corresponding penalties. 2. Red-light running: Typically, if the vehicle stops after crossing the stop line, crossing the line will not result in a penalty. However, if the vehicle does not stop and continues forward, it will be penalized for running a red light.

20

1

Share

How to Determine if a Car's Oil-Gas Separator is Faulty?

If a car's engine experiences shaking after cold starts, burning engine oil, or the engine fault light comes on due to an overly rich air-fuel mixture, it can be determined that the car's oil-gas separator is faulty. It is recommended to promptly visit a 4S shop for inspection to avoid affecting driving safety. Relevant information about the oil-gas separator is as follows: Introduction: The oil-gas separator is a device that separates crude oil and associated natural gas produced from oil wells. The oil-gas separator is placed between the submersible centrifugal pump and the protector, separating free gas from the well fluid. The liquid is sent to the submersible centrifugal pump, while the gas is released into the annular space between the tubing and casing. Function: The oil-gas separator is one of the important components of the entire submersible electric pump system. Its primary function is to serve as the suction inlet for oil and gas entering the multi-stage centrifugal pump. Secondly, before the gas-liquid mixture enters the multi-stage centrifugal pump, the separator removes free gas from the well fluid, thereby reducing the impact of gas on the working characteristics of the submersible electric pump, preventing cavitation and gas lock in the centrifugal pump, and ensuring the normal operation of the multi-stage centrifugal pump.

4

0

Share

How to Drive a Manual Transmission Car for Better Fuel Efficiency?

When going uphill, the engine traction force Fe=Fz+F31, and the car maintains a constant speed; when Fe＞Fz+F31, the car accelerates, and the engine requires fuel to do work. As long as you don't stomp on the gas or brakes aggressively, the fuel consumption difference is minimal. Therefore, for cars equipped with cruise control, enabling it on good roads with light traffic to maintain Fe=Fz+F31 and keep the car moving at a constant speed can slightly improve fuel efficiency, though the effect is not significant. On flat roads, F31=0, and Fe=Fz, the car maintains a constant speed; when Fe＞Fz, the car accelerates, and the engine requires fuel to do work. Similarly, using cruise control to maintain Fe=Fz and keep the car moving at a constant speed can slightly improve fuel efficiency, though the effect is not significant. (Note: On flat roads, many taxi drivers aggressively step on the gas and then coast in neutral. Long-term observations show that fuel consumption decreases noticeably at lower speeds. However, this method can lead to loss of control at higher speeds and is not recommended.) When going downhill, Fe+F31=Fz, and the car maintains a constant speed; when Fe+F31＞Fz, the car accelerates. When F31≥Fz, the engine doesn't require any fuel to do work, and the car can move forward.

9

3

Share

Can a Dash Cam Record Conversations Inside the Car?

What is the reason for the oil pump having no pressure?

How to Pay the Fine for Speeding Violations?

What Causes the Dashboard Lights to Go Out and the Car to Fail to Start Immediately After Starting?

Will I Get Points Deducted for Stopping in a Right-Turn Lane for 30 Seconds?

How to Determine if a Car's Oil-Gas Separator is Faulty?

How to Drive a Manual Transmission Car for Better Fuel Efficiency?

How Often Should the Car Fuel System Be Cleaned?

Can the battery of Land Rover Freelander 2 be disconnected?

Can you turn right when the right-turn arrow signal is red?

Can I renew my driver's license online if it's about to expire?