Diagnostic Procedure
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURES - CHECKING FUEL PRESSURE LEAK DOWN
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 |
WARNING:
The fuel system is under a constant pressure (even with the engine off). Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Install a fuel pressure gauge.Start the engine and observe the fuel pressure reading.
NOTE:
Fuel pressure specification is 400 kPa +/- 34 kPa (58 psi +/- 5 psi). Turn the ignition off.Monitor the fuel pressure gauge for a minimum of 5 minutes.
NOTE:
The pressure should not fall below 241 kPa (35 psi) Does the fuel pressure gauge fall below the above specification?Yes --> Go To 2No --> Fuel System is operating normally.Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC . |
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| 2 |
NOTE:
Before continuing visually and physically inspect the fuel delivery system for external leaks or damage. Repair /replace as necessary. Turn the ignition off.
WARNING:
The fuel system is under a constant pressure even with the engine off. Before testing or servicing any fuel system hose, fitting or line, the fuel system pressure must be released. Install special 5/16 fuel line adapter tool #6539.Attach a fuel pressure test gauge to the T fitting on the tool #6539Start the engine and allow the fuel system to reach maximum pressure.Turn the ignition off.
NOTE:
Fuel specification is 400 kPa +/- 34 kPa (58 psi +/- 5 psi). Using special tool #C4390, Hose Clamp Pliers, slowly clamp off the rubber hose on the Fuel Pressure adapter between the fuel pressure gauge and the engine.Monitor the fuel pressure gauge for a minimum of 5 minutes.
NOTE:
The pressure should not fall below 241 kPa (35 psi) Does the fuel pressure gauge fall below the above specification?Yes --> Check the Fuel Delivery System between the fuel gauge and the fuel pump module. Inspect the seal points and the fuel lines for signs of fuel leakage. Repair/Replace as necessary. If OK, replace the Fuel Pump Module.Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC .No --> Check the Fuel Delivery System between the fuel gauge and the fuel pump module. Inspect the seal points and the fuel lines for signs of fuel leakage. Repair/Replace as necessary. If OK, replace the Fuel Pump Module.Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC . |
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