What does the car PVC valve mean

1 Answers
SamanthaDella
07/30/25 1:42am
Automotive PVC valve is a component in the crankcase forced ventilation system of a car engine, consisting of a valve body, valve, valve cover, and spring. Below is an extended introduction: 1. Working principle: It directs gases from the crankcase into the intake manifold via the PCV valve, with a small amount of air entering the intake manifold directly from the air filter through the PCV valve; 2. Specific uses: This helps prevent phenomena such as icing at the throttle, incomplete combustion, and emission deterioration, while also preventing blow-by gases from entering the atmosphere and avoiding engine oil deterioration.
Was this review help?
10
3
Share
More Forum Discussions

Is the first maintenance for BMW cars free?

BMW's first maintenance is generally not free and requires payment by the owner. Here is additional information: 1. CBS Maintenance Monitoring Reminder System: BMW is equipped with an intelligent CBS maintenance monitoring reminder system. The oil quality sensor continuously monitors the oil condition, taking into account factors such as mileage data and driving habits to calculate the oil maintenance cycle. Simply pay attention to the dashboard alerts and visit the service center for maintenance when the maintenance light comes on. 2. Car Maintenance: Car maintenance refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting, or replacing certain parts of the car, also known as car servicing.
9
3
Share

What does 'pressing the car' mean when learning to drive?

When learning to drive, 'pressing the car' means requiring the student to press the clutch to reduce the speed and move forward at a constant speed, which is often mentioned in Subject 2. Precautions for the Subject 2 test: 1. Clutch control: Clutch control plays a pivotal role in practicing for Subject 2, and the test process always involves clutch control. When the steering wheel is turned one and a half turns, if there is a sign of stopping, immediately release the clutch a little, otherwise a 'midway stop' will occur within 3 seconds. 2. Speed control: Speed needs to be controlled during parallel parking. Use the clutch semi-engagement to slow down the speed, otherwise the wheels are likely to touch the boundary line when turning the steering wheel.
13
3
Share

Should Driving School Students Compensate for Damaged Training Vehicles?

If the driving school's property is damaged due to such incorrect operations, the compensation issue should be determined case by case. If the damage is intentionally caused by the student, they should compensate. If it's unintentional, neither the student nor the instructor should be held responsible; instead, the school should bear the cost. According to Article 20 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China," the following provisions apply: 1. If a student commits a road traffic safety violation or causes a traffic accident during driving training, the instructor is responsible. 2. Regarding whether insurance companies will compensate, there are similar cases, and courts have issued clear rulings. When students use training vehicles for on-road driving practice, it is considered normal training behavior. Therefore, in the event of a traffic accident, the driving school should be held accountable.
15
3
Share

Does missing options in multiple-choice questions of Subject 4 count?

Missing options in the Subject 4 exam questions are considered incorrect and will result in point deductions. Below is the relevant information: 1. Subject 4: Subject 4, also known as the Subject 4 theory test or driver's theory test, is part of the motor vehicle driver's license assessment. The Subject 3 exam consists of two parts: besides the road test, a safety and civility knowledge test, commonly referred to as "Subject 4," was added to assess "driving ethics." Since this test is conducted after Subject 3, it is commonly called the Subject 4 exam. Officially, there is no Subject 4. 2. Exam Content: Subject 4 extracts the requirements related to safe and civilized driving from the original Subject 1, along with safe driving skills under complex conditions and emergency handling knowledge, and places them after the "Subject 3" practical road driving test to further evaluate the candidate's level of traffic awareness.
14
0
Share

How to Play Back the Dashcam Footage on Haval H6?

Remove the TF memory card from the Haval H6 dashcam and insert it into a card reader to view the playback on a computer. Here are detailed introductions about Haval H6: 1. Overview: Haval H6 is the flagship model under the Haval brand, launched on August 25, 2011, at the Great Wall Motors Tianjin new factory. It is a compact SUV. The fuel consumption is 6.6-7.3L. The displacement is 1.5T/2.0T. 2. Configuration: Equipped with a 1.5-GDIT-EVO engine, the maximum torque output range is 1400-3600rpm, matched with the second-generation 7DCT transmission, with a comprehensive transmission efficiency of up to 95.6%. Standard features include a 71.61% high-strength steel body, hot-stamped steel integrated door frames, and 6 airbags.
17
0
Share

How to Pay for Compulsory Traffic Insurance Now?

Currently, there are several ways to purchase compulsory traffic insurance: buying it at a car dealership; purchasing through an insurance company's service personnel; or buying it on the insurance company's website. Although there are many insurance companies available, vehicle owners still need to purchase compulsory traffic insurance from qualified insurance companies designated by relevant national authorities. The coverage and exclusions of compulsory traffic insurance are as follows: 1. Coverage: Compared to the more than 20 exemption clauses in commercial third-party liability insurance, compulsory traffic insurance has fewer exemptions, such as 'losses caused by intentional actions of the victim,' 'property loss of the insured,' 'related arbitration and litigation costs,' and certain indirect losses caused by the accident. The coverage is much broader. Regardless of whether the insured vehicle is at fault in the accident, compulsory traffic insurance will provide compensation within the liability limit, with no deductible or co-payment. 2. Exclusions: According to relevant laws in China, the following situations are not covered by compulsory traffic insurance within the liability limit: personal injuries and property losses caused by intentional actions of the victim, such as suicide, self-harm, or fraud (e.g., staged accidents); arbitration or litigation costs and related expenses arising from traffic accidents; indirect losses, such as the depreciation of vehicle value due to a collision.
2
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.