LEMON Manuals
: Even more car manuals for everyone: 1960-2025
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Mercedes Benz
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1992
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300SD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/O Codes
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Symptoms
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Excessive Fuel Consumption
>>
Possible Causes:
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Possible Causes:
Poor fuel quality
Incorrect timing or defective fuel injection pump
Damaged fuel injector
Restricted or damaged air filter
Injection sequence does not correspond with firing order
Improper idle speed