Heavy Duty Equipment Technician Red Seal Exam Prep · Question
During engine diagnostics, a 'hard start' symptom on a modern diesel engine could indicate an issue with which system?
A hard start in a modern diesel engine is often linked to insufficient fuel pressure during cranking, making the high-pressure fuel pump a prime suspect.
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Question: During engine diagnostics, a 'hard start' symptom on a modern diesel engine could indicate an issue with which system?
Answer options:
- Engine block heater ✅ High-pressure fuel pump
- Power steering pump
- Cabin air filter
Correct answer: High-pressure fuel pump
Explanation: A hard start in a modern diesel engine is often linked to insufficient fuel pressure during cranking, making the high-pressure fuel pump a prime suspect.
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