Does a damaged car valve require a major overhaul?
2 Answers
The damaged car valve does not require a major overhaul. The function of the throttle valve is: to control the air entering the engine. After the gas enters the intake pipe, it mixes with gasoline to form a combustible mixture, which then burns to perform work. The effects of a clogged throttle valve include: 1. The vehicle idles roughly, and it is difficult to start when cold; 2. The engine is prone to stalling after rapid acceleration and releasing the throttle; 3. Increased fuel consumption and engine shaking. Precautions for using the throttle valve: 1. Clean the throttle valve frequently; excessive sludge on the throttle valve can cause insufficient engine power and increased fuel consumption; 2. Apply oil to the fixed metal retaining ring before disassembly to prevent thread stripping; 3. If the throttle valve opening remains the same as before cleaning after cleaning, it can cause excessive air intake, leading to engine shaking during startup and weak acceleration.
When the valve lifters in my car fail, the first thing that comes to mind is repair. This situation usually requires an engine overhaul because valve lifters are critical components controlling intake and exhaust. If damaged, they can disrupt the engine's normal operation. Without timely repair, valves may seize, leading to piston knocking or even complete engine failure. I've seen many car owners ignore minor abnormal noises, only to end up with major issues like stalling on the highway or sudden power loss. The typical solution involves disassembling the engine for inspection, replacing damaged valve lifters, related seals, or the valves themselves, while also checking for any damage to pistons and cylinders. Overhaul costs range from several thousand to tens of thousands depending on the car model, but it's still much cheaper than replacing the entire engine. I recommend paying close attention to changes in engine noise while driving. If any issues arise, seek professional inspection immediately—delaying to save money can pose serious safety risks. Regular maintenance, such as using high-quality oil to lubricate components, can also reduce failure rates.
