Answer:-
The 4HL1 engine, widely used in Isuzu trucks, often faces a few common issues. Owners frequently report problems with the fuel injection system, leading to poor fuel efficiency and rough idling. Turbocharger failures are another concern, typically caused by oil contamination or poor maintenance. Overheating can also be an issue, often due to a failing radiator or water pump. Regular maintenance, such as timely oil changes and checking the cooling system, can help mitigate these problems. If you experience persistent issues, consulting a professional mechanic is advisable to keep your 4HL1 engine running smoothly.
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