145 - MiTo   1.4 16v TJet   Fuel supply circuit check   1040OA   

The fuel system is highly sensitive.

The work must be carried out with the greatest cleanliness and care.

Any air in the system could damage the high pressure fuel pump.

The vehicle must therefore never be driven with the fuel tank empty.
 

STEP

  

CHECK TO BE PERFORMED

  

REMEDIAL ACTION IF THE CHECK IS NOT OK
 

1

  

  • Check that the tank contains the correct type of fuel

  

Remove the contents and wash the tank

   Op. 1040A14 FUEL TANK - R + R FOR REPLACEMENT
 

2

  

  • The fuel reserve should be more than 5 litres

  

Make sure there are at least 5 litres of fuel
 

3

  

  • Check for leaks in the fuel circuit.

  • Check the hoses and connected pipes to identify any obstructions, damage etc.

  • Check for breaks/scratches on the fuel supply or injection pipes.

  • Check the fuel pipe connectors (quick-fit).

  • Check the condition of the three-way fastening elements.

  • Check the connectors and seals are correctly fitted (use only Fiat Auto approved sealants).

  • Check for blockages, leaks, air or water in the fuel system

  

Repair or, if necessary, replace the faulty components
 

4

  

  • Check the tightening torques for the capscrews

  

Restore the correct tightening for the components
 

5

  

  • Check the fuel filter

  

Restore the fuel filter to correct working order or replace if necessary

   Op. 1044B10 FUEL FILTER ASSEMBLY - R.R. OR REPLACE