Reasons for the speed not increasing when the RPM reaches 3000?
2 Answers
Reasons for the speed not increasing when the RPM reaches 3000 are as follows: 1. Fuel supply system failure: The primary power source for vehicle acceleration is the engine, which operates by burning fuel. Therefore, if there is an issue with the fuel supply system, the vehicle's speed may not increase properly during rapid acceleration. 2. Failure to control fuel pressure, fuel injection volume, or ignition timing as required: During rapid acceleration, fuel pressure, fuel injection volume, and ignition timing are critical factors. If these three aspects do not meet specifications, it may result in the vehicle's speed failing to increase. 3. Problems with spark plugs and high-voltage wires: Spark plugs and high-voltage wires are essential components of a vehicle. The spark plug's main function is to generate sparks to ignite the air-fuel mixture in the cylinder, thereby increasing the vehicle's speed. Thus, if there are issues with the spark plugs or high-voltage wires, the vehicle's speed may not increase.
Last time I drove my brother's old Accord, I encountered a similar situation where the RPM went up to 3000 but the speed was stuck at 60 mph. I suspect it's clutch slippage. After driving a manual transmission car for seven or eight years, it's quite normal for the clutch disc to wear out. Now when I press the accelerator, the power doesn't transfer to the wheels. By the way, I didn't smell any burning odor, which means the transmission oil temperature is still normal. This kind of old car, often used for carrying loads, indeed wears out quickly. It even shakes when starting at a red light. I need to hurry up and replace the clutch three-piece set, otherwise one day it might completely slip and I'll have to call a tow truck. Oh, and if you notice the engine revving but the RPM needle jumps up and down, it's most likely a sensor signal issue.
