Monday 11 July, 2011
Author: Kiwi Cylinder Heads
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Probable Cause
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Engine not starting
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Hard to start engine
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Runs rough at lower RPM
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Lack of power
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Diesel knock / pinking
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Black smoke
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White smoke
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Blue smoke
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Low compression
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X
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X
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X
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Low fuel pressure
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X
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X
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X
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X
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X
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X
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Low cranking speed – flat battery
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X
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X
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Glow plugs or relay faulty
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X
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X
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X
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Insufficient fuel supply
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X
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X
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X
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X
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X
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Fuel Quality – petrol - contamination
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X
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X
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X
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X
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X
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X
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Air – vacuum in fuel supply
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X
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X
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X
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X
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Blocked fuel supply - filters
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X
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X
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X
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X
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X
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Faulty diesel injector/s
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X
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X
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X
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X
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X
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X
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X
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Faulty high pressure pump
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X
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X
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X
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X
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X
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Faulty pressure regulator - sensor
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X
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X
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X
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X
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Faulty low pressure supply pump
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X
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X
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X
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X
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Air intake restriction
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X
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X
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X
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Turbo problems – waste gate
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X
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X
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X
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X
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EGR problems
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X
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X
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X
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Injector blow-by seat leaking
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X
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X
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X
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X
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Cam – crank sensor
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X
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X
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X
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X
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X
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X
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Injector wiring harness
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X
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X
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X
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X
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Internal engine problems
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X
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X
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X
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X
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X
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