What Are the Causes of Excessive Engine Noise?

How to Clean Dirt from Car Air Vents?

Use a small brush to remove dust from the air vents. While cleaning the dust, wipe the surrounding areas with a damp cloth to catch any falling particles. For hard-to-reach corners on the air vent grilles, use a damp cotton swab for cleaning. Additional tips: 1. Cleaning the vehicle headliner: Over time, the headliner tends to accumulate a lot of dust. Use a neutral cleaning solution to focus on heavily soiled areas, then perform a thorough cleaning. Note that the headliner's padding is made of heat-insulating and sound-absorbing material, which absorbs water easily. Ensure the cloth is relatively dry during cleaning, as a wet cloth can saturate the headliner material, making it difficult to dry completely. 2. Cleaning the seals: Seals are crucial for sound insulation and waterproofing in cars. Most car seals are made of rubber. Start by wiping the tracks and grooves with a clean, damp sponge to remove dust, then follow up with a dry sponge to maintain seal cleanliness. It's essential to promptly clean dust from the seals, as accumulated dust in the seal tracks can impair their sealing function. Clean them quarterly or even more frequently.

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How early can a vehicle's annual inspection be conducted?

Annual inspection applications can be submitted three months prior to the annual review date. The inspection schedule is as follows: 1. Small and micro non-commercial passenger vehicles must be inspected every 2 years within the first 6 years; after 6 years, annually; after 15 years, twice a year. 2. Commercial passenger vehicles must be inspected annually within the first 5 years; after 5 years, every 6 months. 3. Trucks and large/medium non-commercial passenger vehicles must be inspected annually within the first 10 years; after 10 years, every 6 months. 4. Motorcycles must be inspected every 2 years within the first 4 years; after 4 years, annually. 5. The annual inspection date is determined by the vehicle's initial registration date. For example, if the registration date on the vehicle license is June 2007, the annual inspection should be conducted every June. Article 40 of the 'Motor Vehicle Registration Regulations' stipulates that vehicle owners may apply for an inspection compliance mark at the local vehicle management office up to three months before the expiration of the current inspection validity period. For vehicles due in June, inspections can be conducted in April, May, or June.

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What is the 'Biting Shark' car?

The 'Biting Shark' refers to the Lexus IS, a sports car under the Lexus brand. Taking the 2016 Lexus IS as an example, its body dimensions are: length 4665mm, width 1810mm, height 1430mm, with a wheelbase of 2800mm, a fuel tank capacity of 66 liters, and a trunk capacity of 480 liters. The 2016 Lexus IS is equipped with a 2.0T turbocharged engine, delivering a maximum power of 180kW and a maximum torque of 350Nm, paired with an 8-speed automatic transmission. It features an independent double-wishbone front suspension with a stabilizer bar.

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What is the tire pressure for the Excelle?

The tire pressure for the Excelle is 2.4 to 2.5 bar. Tire pressure refers to the air pressure inside the tire, and the level of tire pressure plays a significant role in the performance and power of the vehicle. Taking the 2020 Excelle as an example, its body dimensions are: length 4468mm, width 1765mm, height 1469mm, with a wheelbase of 2611mm. The 2020 Excelle is equipped with a 1.3L naturally aspirated engine, delivering a maximum power of 79kW and a maximum torque of 133Nm. It is paired with a 5-speed manual transmission. The front suspension type is MacPherson independent suspension, and the rear suspension type is compound torsion beam non-independent suspension.

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How to Adjust Ignition Timing?

Ignition timing refers to the moment when the engine's compression stroke ends, the piston reaches the top of its stroke, and the ignition system provides a high-voltage spark to the spark plug to ignite the compressed air-fuel mixture in the cylinder for power generation. This moment is the ignition timing. Below are the steps to adjust the ignition timing: 1. Adjust the breaker contact gap of the distributor. 2. Locate the top dead center position of the first cylinder's compression stroke and loosen the first cylinder's spark plug. 3. Install the dial indicator bracket and head, ensuring the indicator's contact point vertically touches the exhaust valve spring seat with appropriate pressure, ideally keeping the small pointer on the dial indicator between 1-2. 4. Rotate the dial to set the large pointer of the dial indicator to '0'. Attach an angle disk to the flywheel and slowly rotate the flywheel, observing the dial indicator's pointer. When it moves away from '0', this marks the exhaust valve opening time, and the angle disk pointer should be adjusted to '0'. 5. Continue rotating the flywheel until the bottom dead center mark aligns with the radiator's reference line. The angle indicated by the angle gauge at this point is the exhaust valve opening angle before the bottom dead center. 6. Keep rotating the flywheel until the dial indicator pointer returns to '0', marking the exhaust valve closing time. The angle indicated by the angle gauge now represents the exhaust valve opening duration angle. 7. Use the same method to check the intake valve's opening and closing times and its opening duration angle, then adjust the distributor to the optimal ignition timing.

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At how many kilometers should a major car maintenance be performed?

Major maintenance refers to maintenance that includes engine care and is typically performed every 60,000 kilometers. Major maintenance is based on minor maintenance, with the two types of maintenance alternating. Minor maintenance includes oil changes, and generally, there are three types of engine oil: 1. Full synthetic: Full synthetic oil should be changed every 10,000 kilometers or once a year. 2. Semi-synthetic: Semi-synthetic oil should be changed every 7,500 kilometers or every 7-8 months. 3. Mineral oil: Mineral oil should be changed every 5,000 kilometers or every six months. Below is an introduction to the three types of engine oil: (1) Full synthetic oil: Synthetic oil is a man-made oil. During its production, various natural substances are chemically decomposed and then synthesized with other substances to finally produce synthetic oil. (2) Semi-synthetic oil: Semi-synthetic oil is a lubricant made using semi-synthetic base oil, which is refined from international Group III base oil through hydrocracking technology. It is a mixture of mineral oil and full synthetic oil in a 4:6 ratio. The purity of semi-synthetic oil is very close to that of full synthetic oil, but its cost is slightly higher than that of mineral oil. It is an ideal transitional product from mineral oil to synthetic oil. (3) Mineral oil: As the name suggests, mineral oil is extracted from minerals and is relatively viscous. Mineral oil is refined from petroleum base oil and then mixed with additives.

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What Are the Causes of Excessive Engine Noise?

How to Clean Dirt from Car Air Vents?

How early can a vehicle's annual inspection be conducted?

What is the 'Biting Shark' car?

What is the tire pressure for the Excelle?

How to Adjust Ignition Timing?

At how many kilometers should a major car maintenance be performed?

How Often Should a Sedan Be Driven When Parked for Long Periods?

What are the differences between Haval H6 and Haval M6?

Which Vehicles Are Exempt from Highway Tolls?

Why is the steering wheel making loud noises?