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Glow plugs

Destroyed/lacking probe tip

Support_LV_Ignition_TroubleTracer_GlowPlug_DestroyedLackingProbeTip

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.

Remedy:

  • Check the correspondence of ignition unit with the car type and proper installation of the ignition unit.
  • Check glow plug installation hole for carbon fouling.

Dimples on the probe tip

Support_LV_Ignition_TroubleTracer_GlowPlug_DimplesOnProbeTip

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.

Remedy:

  • Check the correspondence of ignition unit with the car type and proper installation of the ignition unit.
  • Check glow plug installation hole for carbon fouling.

Broken probe tip

Support_LV_Ignition_TroubleTracer_GlowPlug_BrokenProbeTip

Cause:

  • Glowing time too long or voltage too high (12-V glow plug used in the 24-V system or vice versa).
  • Alternator & regulator failure.

Remedy:

  • Check glow plug regulator (contacts).
  • Check on-board voltage and glow plug voltage.
  • Check charging system voltage.

“Swollen” probe tip

Support_LV_Ignition_TroubleTracer_GlowPlug_SwollenProbeTip

Cause:

  • Excessive voltage (12-V glow plug used in the 24-V system or vice versa)
  • Alternator & regulator failure.
  • Inappropriate storage (moisture).

Remedy:

  • Check on-board voltage and glow plug operation voltage.
  • Check charging system.
  • Check storage conditions.

Bulging ring on the probe tip

Support_LV_Ignition_TroubleTracer_GlowPlug_BulgingRingProbeTip

Cause:

  • Oil in the combustion chamber (probable cause: car engine wear).

Remedy:

  • Check piston tightness in engine cylinders.
  • Check engine oil consumption.

Probe deformation (due to overheating)

Support_LV_Ignition_TroubleTracer_GlowPlug_ProbeDeformation

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.
  • Glowing time too long or excessive voltage (12-V glow plug used in the 24-V system or vice versa)
  • Alternator & regulator failure.
  • Injection unit operation/timing failure.

Remedy:

  • Check the correspondence of the ignition unit with the car type and proper installation of the ignition unit.
  • Check glow plug installation hole for carbon fouling. Check glow plug regulator (contacts).
  • Check on-board voltage and glow plug voltage.
  • Check charging system voltage.
  • Check fuel injection timing.

Lacking probe

Support_LV_Ignition_TroubleTracer_GlowPlug_LackingProbe

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.
  • Injection unit operation/timing failure.
  • Damaged glow plug installation hole thread in the cylinder head/not tightened glow plug causing incorrect plug seating.

Remedy:

  • Check the correspondence of the ignition unit with the car type and proper installation of the ignition unit.
  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check ignition pump timing.

Probe perforation, fissures or melting close to the glow plug body

Support_LV_Ignition_TroubleTracer_GlowPlug_ProbePerforationFissuresorMeltingGlowPlugBody

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.
  • Injection unit operation/timing failure.
  • Damaged glow plug installation hole thread in the cylinder head/not tightened glow plug causing incorrect plug seating.

Remedy:

  • Check the correspondence of the ignition unit with the car type and proper installation of the ignition unit.
  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check ignition pump timing.

Probe in contact with the glow plug body

Support_LV_Ignition_TroubleTracer_GlowPlug_ProbeContactwithGlowPlugBody

Cause:

  • Tightening torque too high.
  • Inappropriate tool used or damage of the cylinder head hole thread.

Remedy:

  • Check the cylinder head hole thread for damage/carbon fouling.
  • Check correct glow plug tightening.

Carbon fouling between the plug body and the probe glow

Support_LV_Ignition_TroubleTracer_GlowPlug_CarbonFoulingBetweenPlugBodyandProbeGlow

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.
  • Ignition pump operation/timing failure.

Remedy:

  • Check the correspondence of the ignition unit with the car type and proper installation of the ignition unit.
  • Check the glow plug installation hole thread in the cylinder head for carbon fouling.
  • Check ignition pump and its timing.

Carbon fouling in the glow plug seat

Support_LV_Ignition_TroubleTracer_GlowPlug_CarbonFoulinginGlowPlugSeat

Cause:

  • Incorrect glow plug seating.

Remedy:

  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check correct tightening of the glow plug.

Damaged glow plug hexagon/thread

Support_LV_Ignition_TroubleTracer_GlowPlug_DamagedGlowPlugHexagonThread

Cause:

  • Tightening torque too high.
  • Inappropriate tool used or damage of the cylinder head hole thread.

Remedy:

  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check correct tightening of the glow plug.

Power supply terminal bent

Support_LV_Ignition_TroubleTracer_GlowPlug_PowerSupplyTerminalBent

Cause:

  • Tightening torque too high. Inappropriate tool used or damage of the cylinder head hole thread.

Remedy:

  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check correct tightening of the glow plug.

Power supply terminal broken off

Support_LV_Ignition_TroubleTracer_GlowPlug_Powersuppluterminalbrokenoff

Cause:

  • Tightening torque too high.
  • Inappropriate tool used or damage of the cylinder head hole thread.

Remedy:

  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check correct tightening of the glow plug

Destroyed/lacking probe tip

Support_LV_Ignition_TroubleTracer_GlowPlug_DestroyedLackingProbeTip

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.

Remedy:

  • Check the correspondence of ignition unit with the car type and proper installation of the ignition unit.
  • Check glow plug installation hole for carbon fouling.

Dimples on the probe tip

Support_LV_Ignition_TroubleTracer_GlowPlug_DimplesOnProbeTip

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.

Remedy:

  • Check the correspondence of ignition unit with the car type and proper installation of the ignition unit.
  • Check glow plug installation hole for carbon fouling.

Broken probe tip

Support_LV_Ignition_TroubleTracer_GlowPlug_BrokenProbeTip

Cause:

  • Glowing time too long or voltage too high (12-V glow plug used in the 24-V system or vice versa).
  • Alternator & regulator failure.

Remedy:

  • Check glow plug regulator (contacts).
  • Check on-board voltage and glow plug voltage.
  • Check charging system voltage.

“Swollen” probe tip

Support_LV_Ignition_TroubleTracer_GlowPlug_SwollenProbeTip

Cause:

  • Excessive voltage (12-V glow plug used in the 24-V system or vice versa)
  • Alternator & regulator failure.
  • Inappropriate storage (moisture).

Remedy:

  • Check on-board voltage and glow plug operation voltage.
  • Check charging system.
  • Check storage conditions.

Bulging ring on the probe tip

Support_LV_Ignition_TroubleTracer_GlowPlug_BulgingRingProbeTip

Cause:

  • Oil in the combustion chamber (probable cause: car engine wear).

Remedy:

  • Check piston tightness in engine cylinders.
  • Check engine oil consumption.

Probe deformation (due to overheating)

Support_LV_Ignition_TroubleTracer_GlowPlug_ProbeDeformation

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.
  • Glowing time too long or excessive voltage (12-V glow plug used in the 24-V system or vice versa)
  • Alternator & regulator failure.
  • Injection unit operation/timing failure.

Remedy:

  • Check the correspondence of the ignition unit with the car type and proper installation of the ignition unit.
  • Check glow plug installation hole for carbon fouling. Check glow plug regulator (contacts).
  • Check on-board voltage and glow plug voltage.
  • Check charging system voltage.
  • Check fuel injection timing.

Lacking probe

Support_LV_Ignition_TroubleTracer_GlowPlug_LackingProbe

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.
  • Injection unit operation/timing failure.
  • Damaged glow plug installation hole thread in the cylinder head/not tightened glow plug causing incorrect plug seating.

Remedy:

  • Check the correspondence of the ignition unit with the car type and proper installation of the ignition unit.
  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check ignition pump timing.

Probe perforation, fissures or melting close to the glow plug body

Support_LV_Ignition_TroubleTracer_GlowPlug_ProbePerforationFissuresorMeltingGlowPlugBody

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.
  • Injection unit operation/timing failure.
  • Damaged glow plug installation hole thread in the cylinder head/not tightened glow plug causing incorrect plug seating.

Remedy:

  • Check the correspondence of the ignition unit with the car type and proper installation of the ignition unit.
  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check ignition pump timing.

Probe in contact with the glow plug body

Support_LV_Ignition_TroubleTracer_GlowPlug_ProbeContactwithGlowPlugBody

Cause:

  • Tightening torque too high.
  • Inappropriate tool used or damage of the cylinder head hole thread.

Remedy:

  • Check the cylinder head hole thread for damage/carbon fouling.
  • Check correct glow plug tightening.

Carbon fouling between the plug body and the probe glow

Support_LV_Ignition_TroubleTracer_GlowPlug_CarbonFoulingBetweenPlugBodyandProbeGlow

Cause:

  • Ignition unit failure.
  • Incorrect/irregular fuel jet direction.
  • Incorrect number or size of sealing causing incorrect spraying position.
  • Ignition pump operation/timing failure.

Remedy:

  • Check the correspondence of the ignition unit with the car type and proper installation of the ignition unit.
  • Check the glow plug installation hole thread in the cylinder head for carbon fouling.
  • Check ignition pump and its timing.

Carbon fouling in the glow plug seat

Support_LV_Ignition_TroubleTracer_GlowPlug_CarbonFoulinginGlowPlugSeat

Cause:

  • Incorrect glow plug seating.

Remedy:

  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check correct tightening of the glow plug.

Damaged glow plug hexagon/thread

Support_LV_Ignition_TroubleTracer_GlowPlug_DamagedGlowPlugHexagonThread

Cause:

  • Tightening torque too high.
  • Inappropriate tool used or damage of the cylinder head hole thread.

Remedy:

  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check correct tightening of the glow plug.

Power supply terminal bent

Support_LV_Ignition_TroubleTracer_GlowPlug_PowerSupplyTerminalBent

Cause:

  • Tightening torque too high. Inappropriate tool used or damage of the cylinder head hole thread.

Remedy:

  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check correct tightening of the glow plug.

Power supply terminal broken off

Support_LV_Ignition_TroubleTracer_GlowPlug_Powersuppluterminalbrokenoff

Cause:

  • Tightening torque too high.
  • Inappropriate tool used or damage of the cylinder head hole thread.

Remedy:

  • Check the glow plug installation hole thread in the cylinder head for damage/carbon fouling.
  • Check correct tightening of the glow plug
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