Chrysler 300M 2002 Service Manual page 2726

*CHECKING HARD START (FUEL DELIVERY SYSTEM) —
TEST
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 pressure line at the fuel pump module.
Install special 5/16 fuel line adapter tool #6539 between disconnected fuel line and
the fuel pump module.
Attach a fuel pressure test gauge to the T fitting on 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 now?
Yes → Visually and physically inspect the fuel supply line between the
→ Go To 3
No
Caution: Stop All Actuations.
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.
→ Replace the Fuel Pump Module.
No
4 NOTE: Before continuing visually and physically inspect the fuel delivery
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.
Disconnect the fuel supply line from the fuel rail.
Install special 5/16 fuel line adapter tool #6539 between disconnected fuel supply
line and the fuel rail.
Attach a fuel pressure test gauge to the T fitting on tool #6539.
Start 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).
Monitor the fuel pressure gauge for a minimum of 5 minutes.
NOTE: The pressure should not fall below 241 KPa (35 psi)
Is the fuel pressure within specification?
Yes → Go To 5
→ Go To 6
No
Caution: Stop All Actuations.
ACTION
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.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
Perform POWERTRAIN VERIFICATION TEST VER - 2.
DRIVEABILITY - NGC
297
Continued
APPLICABILITY
All
All
All