If your Land Cruiser Prado 150 struggles under load and blows black smoke, the EGR valve or DPF is likely clogged. Learn which sensors to check first and whether it’s safe to keep driving.
Understanding the Symptoms
When a diesel Toyota Land Cruiser Prado 150 loses power under load and belches black smoke, it's a classic sign of incomplete combustion. The engine is getting too much fuel relative to air, and that unburned carbon shows up as black smoke. The most common culprits are a clogged EGR (Exhaust Gas Recirculation) system or a blocked DPF (Diesel Particulate Filter). Let me walk you through what happens and how to diagnosis it yourself.
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