What Causes a Car to Lose Power Over Time?
2 Answers
Car losing power over time may be due to insufficient engine power. Here are the specific reasons: 1. Unreasonable increase in external load: For example, "brake drag" caused by brake system failure. Therefore, when noticing insufficient engine power, reduced speed, and poor acceleration, the first step is to analyze and identify external influencing factors. After eliminating external factors, proceed to investigate internal causes. 2. Improper installation or adjustment of the throttle pedal and linkage: Due to incorrect installation or adjustment of the throttle linkage, the governor load control lever cannot be pushed to the full-load position, thereby affecting the engine's power output.
My old car feels like stepping on cotton when I press the accelerator lately, clearly lacking power. I specifically consulted a mechanic about this, and he said the most common issue is a clogged exhaust system, especially problems with the catalytic converter. If exhaust can't escape, it's like a person struggling to breathe. Another possibility is a blocked fuel line—if the fuel filter hasn't been changed for too long, impurities can clog the fuel line, preventing the engine from getting enough fuel. Worn-out spark plugs or faulty ignition coils can also lead to incomplete combustion, directly reducing power. Hot weather lately can also raise intake air temperature, lowering its density and oxygen content, which can make the car feel sluggish. Oh, and for automatic transmission cars, don’t forget to check the transmission fluid—if it’s degraded, gear shifts won’t be smooth. He recommended checking cylinder compression and cleaning the throttle body—guaranteed to bring back that kick of acceleration.
