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Home >> Land Rover >> 2014 >> Range Rover Autobiography >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Accessory Drive - TDV6 3.0L Diesel -- Range Rover/L405) >> Accessory Drive - TDV6 3.0L Diesel >> Accessory Drive (Diagnosis And Testing) >> Diagnosis And Testing >> Symptom Chart (Fuel Injection Pump Belt)

Symptom Chart (Fuel Injection Pump Belt)

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SYMPTOM POSSIBLE CAUSES ACTION
Noise
  • Fuel injection pump belt condition
  • Fuel injection pump belt fouling cover
  • Fuel injection pump belt tensioner bearing failure
  • Fuel injection pump failure
  • Check the fuel injection pump belt condition (see visual inspection. Refer to: INSPECTION AND VERIFICATION )
  • Check the fuel injection pump belt cover for indications of fouling (this may indicate a pump misalignment), refer to the relevant service information section
  • The fuel injection pump belt tensioner must be renewed if the belt is removed, making a check of the bearing impractical
  • Remove the fuel injection pump belt, check the fuel injection pump pulley for security. Check the fuel injection pump for excessive resistance to rotation (excessive resistance in the pump will cause the pulley securing nut to loosen as a design feature). Check for diagnostic trouble codes (DTCs) indicating a pump malfunction
Fuel injection pump belt does not hold tension
  • Fuel injection pump belt condition
  • Tensioner fault
  • Check the fuel injection pump belt condition (see visual inspection. Refer to: INSPECTION AND VERIFICATION )
  • Check the tensioner function
Loss of drive (with no drive to the fuel injection pump, the engine will not run)
  • Fuel injection pump belt broken/stripped teeth
  • Drive pulleys loose
  • Investigate the cause of the fuel injection pump belt breakage/damage (a belt broken at a 45 degree angle normally indicates a shear, a break straight across the belt normally indicates that the belt has been crimped).
  • Check the fuel injection pump for excessive resistance to rotation (excessive resistance in the pump will cause the pulley securing nut to loosen as a design feature). Check for DTCs indicating a pump malfunction
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