Low fuel delivery pressure circuit check
- Make
- Fiat
- Model
- Grande Punto Factory Service Manual
- Year
- 2005–2012
- Section
- Diesel injection system › Low fuel delivery pressure circuit check
LOW FUEL DELIVERY PRESSURE CIRCUIT CHECK
Connect the diagnostic equipment pressure transducer between the diesel filter (1a) and the pressure pump (1b) (connect it to the filter outlet).
Turn the ignition key ON.
Within 30 seconds, check that the pressure reading on the gauge is between 4.5 and 6 bar.
The fuel pump in the tank should switch off after 10 seconds.
Make sure that the taps and the adjustment screws at the side of the pressure gauge are open (except the ones on ducts not connected to the system).
Connect the diagnostic equipment pressure transducer between the diesel filter (1a) and the pressure pump (1b) (connect it to the filter outlet).
Turn the ignition key ON.
Within 30 seconds, check that the pressure reading on the gauge is between 2 and 3 bar.
The fuel pump in the tank should switch off after 30 seconds.
Make sure that the taps and the adjustment screws at the side of the pressure gauge are open (except the ones on ducts not connected to the system).
Parts & tools for this job For 2005 Fiat Grande Punto
- PARTFuel filterSearch: Fiat Grande Punto 2005 fuel filter
- TOOLFuel pressure test kitSearch: fuel pressure test kit
- TOOLFuel line disconnect toolSearch: fuel line disconnect tool
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