Why does a diesel vehicle lack power and can't run properly?
2 Answers
Diesel engine lack of power may be caused by engine failure, requiring inspection of the diesel engine's intake system, exhaust system, and fuel supply system for proper operation. Below are relevant explanations for diesel engine power loss: 1. Most trucks are equipped with manual transmissions: Manual transmissions have a clutch, where the clutch pressure plate is fixed to the engine flywheel, and the clutch disc transmits power when pressed by the pressure plate. If the clutch disc is not pressed tightly, it will slip during acceleration, preventing full power transmission to the transmission, resulting in weak vehicle acceleration; 2. Poor spray quality: Less oxidation reaction occurs, leading to reduced heat generation. Additionally, if the diesel engine governor is improperly adjusted or the governor spring is too tight or broken, it may result in insufficient force to push the fuel pump rack, preventing the injection pump from increasing fuel supply, thereby causing diesel engine power deficiency.
I've been driving diesel vehicles for over a decade and have encountered several instances of power loss. The most common issue is a clogged or dirty fuel filter - when fuel supply gets restricted, the vehicle immediately loses power. Also, when the air filter gets completely clogged with dust, the engine can't intake sufficient air, naturally reducing performance. Turbocharger problems are even more troublesome - since it's responsible for compressing air, if the impeller gets stuck or develops oil leaks, the car becomes as slow as an ox pulling a cart. I remember one long trip where poor fuel quality nearly caused an accident, so regularly replacing filters and using proper diesel is crucial. Additionally, worn engine pistons or loose chains can also cause problems and require prompt inspection, otherwise repairs become extremely expensive. Paying attention to these maintenance items regularly can save you a lot of trouble.
