How to Clean a Car Engine?

Annual Inspection: DMV or Testing Station?

Annual inspection requires visiting both the DMV and a testing station. After the vehicle inspection at the testing station, you need to go to the DMV to get the annual inspection stamp. The DMV primarily handles driver's license applications, replacements, renewals, inspections, and other services related to vehicles and drivers, while the testing station focuses on comprehensive performance testing for motor vehicles. Annual inspection, also known as annual check-up, refers to the safety inspection conducted every year or every two years, covering a full range of checks including the horn, brakes, axle weight, chassis, ignition system, lighting system, exhaust system, license plate installation, etc. Before the annual inspection, you should check if there are any traffic violations on your vehicle. If there are, you must settle them before proceeding with the annual inspection, as unresolved violations will prevent you from completing the process.

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What Causes Car Idle Shaking?

Reasons for car idle shaking: 1. The throttle is dirty or the fuel injector has excessive carbon deposits. The solution is to clean the fuel system and check if the idle control valve has carbon buildup that needs cleaning; 2. Issues with the ignition system. The solution is to check if the spark plugs have excessive carbon deposits and replace them if necessary; 3. Unstable oil pressure. The solution is to check the oil pressure and replace components if needed; 4. Aging engine components. The solution is to replace the parts. Idle shaking refers to the engine shaking when idling and not functioning properly. In this case, the idle speed should be adjusted slightly higher. Idle state refers to a working condition when the engine is running without load. When the accelerator pedal is fully released while the engine is running, the engine enters idle state. When adjusting the idle speed, the RPM should not fluctuate abruptly, as this may cause premature engine wear. It is recommended to have the adjustment performed at an automotive repair facility.

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What does SEL in the car represent?

SEL in the car stands for "Select", which is displayed in abbreviated form on the car dashboard as a menu selection confirmation button. Some vehicle models may also have SEL or RESET buttons, primarily controlling functions such as tire pressure monitoring, odometer, trip mileage, average speed, remaining range, elapsed driving time, distance to next maintenance, etc. Generally, a short press switches between items, while a long press resets the data. Functions of various buttons in the car: 1. The SEL button is the menu selection confirmation button, usually located on the multifunction steering wheel; 2. The AC button is the compressor switch, which is the air conditioning cooling switch, as the car's heating system doesn't require the compressor; 3. MUTE is the mute button for instant silencing; 4. MODE is the mode switching button.

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How to Obtain Physical Examination Information for Driver's License Renewal on Traffic Management 12123

Go to the designated hospital for a physical examination, and the hospital will upload the examination information. Enter "physical examination" in the search field and search. Click to submit the physical condition certificate and select the driver's license type to obtain the physical examination information.

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How to Generally Solve Shock Absorber Abnormal Noise?

Check whether the shock absorber is leaking oil, listen for any very dull noises during low-speed driving, and press the upper part of the suspension of each wheel by hand to see if it is too hard. Currently, whether in 4S shops or repair shops, the solution to various faults of shock absorbers is generally to replace them with new parts.

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What is the vehicle color change application process on Traffic Management 12123?

Clear all traffic violation records before filing the application. Log in to Traffic Management 12123, select the "Motor Vehicle" option, and enter the license plate number for registration. Bring your ID card, vehicle license, and vehicle registration certificate to the DMV for processing, and fill out the "Vehicle Modification Application Form". Pay the fee, wait for the traffic police to inspect the vehicle. After passing the inspection, you can collect the new vehicle license at the designated window, completing the registration process.

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