Autoelectro resolves Fiat Doblo start motor failure issue

Underlying issues are often overlooked and can lead to misdiagnosis, manufacturer says

Autoelectro resolves Fiat Doblo start motor failure issue
Autoelectro resolves Fiat Doblo start motor failure issue, 1.3D Multijet (2014-onwards).

A slow start or excessive crank time can be incorrectly diagnosed as a faulty or worn-out starter motor; however, this is not always the case.

Underlying issues are regularly overlooked and the same fault that was thought to be fixed reoccurs and the replaced component is often blamed.

Autoelectro has experienced this scenario on starter motors fitted to the Fiat Doblo application.

The vehicle can suffer from slow starting, but it is not the starter motor that is causing this problem; it is caused by the engine’s main earth wire to the chassis being corroded.

The damage triggers a poor connection and results in excessive cranking of the starter motor, causing it to burn out and fail.

Burnt-out starter motor symptoms

  • Blue colour on the gear shaft and pinion area.
  • Rattling inside the starter motor.
  • Burning smell from starter motor or insulation leak.
  • Damaged pinion teeth or broken nose cone.
  • Burnt, discoloured or melted wire from solenoid to starter body.
  • Burnt label.

To minimise the risk of failure, Autoelectro advises technicians to inspect the earth wire connected to the chassis and replace if necessary.

The wire on the Doblo can be found close to the gearbox and runs directly from the negative terminal on the battery.

To find out more about Autoelectro click ‘more details’ below.

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