How to Break in an Automatic Transmission?

What are the functions of the various gears in a manual transmission car?

Manual transmission gear functions are introduced as follows: 1. First gear is the starting gear, used when the car begins moving from a complete stop. Another meaning of the starting gear is that it's only used for starting - once the car starts moving, you need to shift to second gear. 2. Second gear is the driving gear, used when the car is moving at very low speeds. This means as long as the car is moving slowly without stopping, you can use this gear (not for high-speed driving). Some vehicles with higher idle speeds can even start moving in second or third gear by pressing the accelerator, though this operation is not recommended. 3. Third gear is the acceleration gear. Starting from this gear, you can use the accelerator to increase speed and bring the car to a certain velocity. 4. Fourth gear is the medium-high speed driving gear. On most urban roads (excluding elevated roads), this is generally the highest gear needed. Depending on the vehicle, it's typically used when maintaining speeds around 60-70 km/h. 5. Fifth gear is the high-speed gear, used only on elevated roads or highways, generally at speeds of 80 km/h or above. 6. R gear is the reverse gear, used when backing up the car.

9

4

Share

Is Replacing the Valve Cover Gasket Considered a Major Overhaul?

Replacing the valve cover gasket is not considered a major overhaul. The valve cover gasket is a wearable component of a car, and due to aging or other reasons, it may become loose or detached, leading to oil leakage from the valve cover. Therefore, it is essential to inspect the valve cover gasket regularly. The engine valve cover primarily serves a sealing function to prevent oil leaks. It should be inspected every 20,000 kilometers, and if worn, it should be replaced promptly. A faulty valve cover gasket can easily cause oil leakage from the valve cover, posing safety hazards. There are two main reasons for valve cover oil leakage: poor assembly process and aging of the valve cover gasket. 1. Poor assembly process: If there are issues during the assembly of the valve cover, it can easily deform under pressure, leading to oil leakage. In such cases, the valve cover should be reassembled, and if necessary, replaced with a new one. 2. Aging of the valve cover gasket: When a car has been owned for too many years or has been driven for an extended mileage, the aging of the valve cover gasket is a normal occurrence. In this situation, simply replacing the valve cover gasket and sealing ring will suffice.

18

4

Share

What are the criteria for choosing between recirculation and fresh air mode in car air conditioning?

Car air conditioning recirculation and fresh air mode selection criteria are: when turning on the air conditioning for cooling or heating, first activate recirculation mode to quickly lower or raise the interior temperature. Once the temperature stabilizes, appropriately switch to fresh air mode to exchange air with the outside. The difference between recirculation and fresh air mode lies in the air intake source - recirculation draws air from inside the vehicle. The choice between recirculation and fresh air mode can be determined based on the following three situations: 1. If the car has been exposed to intense sunlight and the interior feels like a sauna, first activate fresh air mode for ventilation and heat dissipation after entering the vehicle, while also opening windows and sunroof to accelerate cooling. After 3-5 minutes when the interior temperature stabilizes, close all windows, turn on cooling, and switch to recirculation mode. 2. In extremely cold winters, delay turning on the heater until the engine reaches normal operating temperature. Then activating heater with recirculation mode can rapidly increase interior warmth. 3. During traffic congestion, it's best to use recirculation mode to prevent circulation of polluted outside air into the cabin.

13

0

Share

Can I continue driving if the front wheels cross the line during a yellow light that turns red?

If the vehicle has already crossed the stop line when the light turns yellow, it can continue driving and it is not considered running a red light. According to regulations, when the yellow light is on, vehicles that have already crossed the stop line can continue to pass. Running a red light is determined by three photos: one showing the front of the vehicle crossing the stop line during the red light, one showing the rear of the vehicle crossing the stop line, and one showing the entire vehicle completely passing the crosswalk. All three conditions must be met to be considered running a red light. According to Article 38 of the 'Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China': 1. When the green light is on: vehicles are allowed to pass, but turning vehicles must not hinder the passage of straight-moving vehicles and pedestrians; 2. When the yellow light is on: vehicles that have already crossed the stop line can continue to pass; 3. When the red light is on: vehicles are prohibited from passing.

9

5

Share

How many hours does it take to replace a timing belt?

Generally, it takes about 2-3 hours to replace a timing belt. The cost for replacing a timing belt, an alternator belt, and a tensioner pulley is usually around 600-800 RMB. If the water pump has issues and needs to be replaced together, including maintenance and labor fees, the total cost would be around 1000-1500 RMB. Once the timing belt shows signs of aging or cracking, it must be replaced immediately. It is recommended to replace the timing belt every 80,000-100,000 kilometers. Replacing a timing belt requires certain technical skills and methods. For those who are skilled and wish to replace the timing belt themselves, here is a brief introduction to the replacement process: 1. Rotate the crankshaft pulley to align the pulley notch with the protrusion on the oil pump housing, adjusting the timing point. 2. Remove the crankshaft pulley bolt and the crankshaft pulley. 3. Remove the timing belt lower cover and the guide pulley. 4. Remove the timing belt tensioner pulley and the belt; Installation: When installing the belt, ensure it is tight and not loose. After aligning the timing point, use a hex wrench to adjust the pointer and tighten the tensioner pulley. Use a socket to rotate the crankshaft clockwise twice to ensure the timing points are accurately aligned.

19

3

Share

Is a car that has been in stock for over 4 months considered a stock car?

From the perspective of stock cars, yes! However, due to factors such as 4S store warehousing or transportation, most consumers receive new cars that have been sitting for some time after the production date. Of course, the closer the production date, the better. The term "stock car" has no legal definition; it is an industry term in automotive sales referring to new cars that remain unsold for an extended period after production. So, how long after production does a car qualify as a stock car? There is no absolute standard. Generally, in the industry, domestically produced brands and joint-venture cars are considered stock cars if they have been in stock for over three months or even half a year. For imported cars, due to the lengthy processes involved in transportation, customs clearance, and entry, the timeframe is more lenient—typically, cars over six months or a year old are classified as stock cars. There are no specific regulations on whether consumers purchasing stock cars can enjoy extended warranties or special after-sales services. However, if a 4S store intentionally conceals information or falsely claims the car is less than a year old when it is actually older—even significantly so—this constitutes fraud. In such cases, the store should compensate the consumer for their losses as per the consumer's request, with the compensation amount being three times the price of the purchased product or service.

19

3

Share

How to Break in an Automatic Transmission?

What are the functions of the various gears in a manual transmission car?

Is Replacing the Valve Cover Gasket Considered a Major Overhaul?

What are the criteria for choosing between recirculation and fresh air mode in car air conditioning?

Can I continue driving if the front wheels cross the line during a yellow light that turns red?

How many hours does it take to replace a timing belt?

Is a car that has been in stock for over 4 months considered a stock car?

Do I need to pay again when changing driving schools?

How many cylinders does the Civic 220 engine have?

Can I drive if I haven't received my new driver's license yet?

Can I still renew my driver's license if I fail the vision test during the medical examination?