What Causes the Speed and RPM Not to Increase When the Throttle is Fully Pressed?
2 Answers
When the throttle is fully pressed but neither the speed nor the RPM increases, the main factors causing this issue typically involve faults in the car's throttle pedal, intake system, fuel system, ignition system, or ECU control unit. Below is relevant information about spark plugs: 1. Introduction: The spark plug is a crucial component of the gasoline engine's ignition system. It introduces high voltage into the combustion chamber, creating a spark across the electrode gap to ignite the air-fuel mixture in the cylinder. It mainly consists of a terminal nut, insulator, terminal stud, center electrode, side electrode, and a metal shell, with the side electrode welded to the shell. 2. Working Principle: Under high voltage, the air between the spark plug's center electrode and side electrode rapidly ionizes, forming positively charged ions and negatively charged free electrons. When the voltage between the electrodes reaches a certain level, the number of ions and electrons in the gas increases like an avalanche, causing the air to lose its insulating properties.
I've been driving for over a decade and encountered several situations where the car wouldn't accelerate despite flooring the throttle. I remember once on the highway, I literally stomped the gas pedal through the floor but the car just wouldn't respond - it was utterly frustrating. Later during repairs, we found the fuel pump had failed, preventing gasoline from reaching the engine. That's why it's crucial to regularly maintain the fuel system and filters, rather than waiting until a blockage causes trouble. A severely dirty air filter can also make the engine 'breathe' poorly and lose power. For manual transmission cars, clutch slippage might prevent power from reaching the wheels. I've noticed these issues occur more frequently during hot summer months, possibly due to inadequate cooling - timely radiator cleaning can help. Developing a habit of having professionals conduct comprehensive inspections every six months helps identify potential issues early, making driving much more reassuring.
