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 HARD START (FUEL DELIVERY SYSTEM)
| TEST | ACTION | APPLICABILITY |
|---|---|---|
| 1 | 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 a fuel gauge. Turn the ignition on. With the DRBIII®, actuate the ASD Fuel System test and observe the fuel pressure gauge.
NOTE:
Fuel pressure specification is 400 kPa +/- 34 kPa (58 psi +/- 5 psi). Choose a conclusion that best matches your fuel pressure reading. Below Specification Go To 2 Within Specification Go To 4 |
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| 2 | 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. Raise vehicle on hoist, and disconnect the fuel supply line at the fuel pump module. Install special 5/16 fuel line adapter tool #6539 between the disconnected fuel line and the fuel pump module. Attach a fuel pressure test gauge to the T fitting on the tool #6539 Turn the ignition on. With the DRBIII®, actuate the ASD Fuel System test and observe the fuel pressure gauge.
NOTE:
Fuel pressure specification is 400 kPa +/- 34 kPa (58 psi +/- 5 psi). Is the fuel pressure within specification? Yes --> Visually and physically inspect the fuel supply lines between the fuel tank and the fuel rail. Repair/replace as necessary. If no problem is found replace the fuel filter. Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC . No --> Go To 3 |
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| 3 | 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. Remove the Fuel Pump Module and inspect the Fuel Inlet Strainer. Is the Fuel Inlet Strainer plugged? Yes --> Replace the Fuel Pump Inlet Strainer. Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC . No --> Replace the Fuel Pump Module. Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC . |
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| 4 | Fuel pressure gauge still installed.
NOTE:
Fuel pressure specification is 400 kPa +/- 34 kPa (58 psi +/- 5 psi). Ensure the fuel pressure is at maximum pressure. 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 5 No --> Check the fuel for contaminants. Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC . |
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| 5 |
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 injectors. Inspect the seal points and the fuel lines for signs of fuel leakage. Repair/Replace as necessary. If OK, replace the leaking Fuel Injector(s).Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC . |
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