What is the reason when the throttle is fully pressed but the RPM and speed do not increase?
2 Answers
The reasons why the RPM and speed do not increase when the throttle is fully pressed include: insufficient oil pressure and poor fuel pump performance. Related explanations: 1. Introduction: The throttle, also known as the "accelerator" or "throttle valve," is a control device that regulates the engine's power (thrust). In piston-type aircraft engines, the throttle controls the opening of the carburetor's throttle valve to adjust the cylinder's filling volume, thereby determining the engine's output power. 2. Oil pressure: The flowing pressure that lifts oil and gas from the bottom of the well to the wellhead through the tubing is called tubing pressure, or oil pressure for short. It is measured by the tubing pressure gauge, and its value is the flowing pressure minus the pressure of the oil-gas mixture column in the well, friction resistance, and slippage loss. The oil pressure depends on the level of the flowing pressure, which in turn is related to the reservoir pressure. Therefore, the oil pressure level reflects the energy of the oil well.
I've been driving for years and have encountered several situations where the throttle was floored but the RPM and speed didn't increase, which was really frustrating. It's usually due to a clogged intake system—like when the air filter is full of dust, the engine can't suck in enough air, leading to reduced combustion efficiency. It could also be caused by a dirty throttle body, causing the computer to misread the throttle opening. Once on the highway, this happened to me, and I quickly pulled over. After checking, I found the air filter was too dirty, so I replaced it with a new one, and everything returned to normal. I recommend cleaning the air filter regularly and replacing it every 5,000 kilometers to avoid major repair costs. Don't underestimate this maintenance—it can improve fuel efficiency and extend the engine's lifespan. If you encounter such issues, don't push through; safety first—get a professional mechanic to inspect it immediately. For daily driving, remember to develop good habits, like avoiding opening windows on dusty roads, which can prevent a lot of trouble.
