Dodge Neon / Neon SRT-4. Manual — part 605
TEST
ACTION
APPLICABILITY
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.
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 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
t, 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?
All
Yes
→ Repair/replace fuel supply line as necessary.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No
→ Go To 4
Caution: Stop All Actuations.
4
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?
All
Yes
→ Replace the Fuel Pump Inlet Strainer.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No
→ Replace the Fuel Pump Module.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
5
Turn the ignition off.
Disconnect the fuel pump module harness connector.
Turn the ignition on.
With the DRBIII
t, actuate the ASD Fuel System test.
Using a 12 volt test light connected to ground, probe the (A141) Fuel Pump Relay
Output circuit at the Fuel Pump Module harness connector.
Does the test light illuminate brightly?
All
Yes
→ Go To 6
No
→ Go To 8
Caution: Stop All Actuations.
6
Turn the ignition off.
Disconnect the Fuel Pump Module harness connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using a test light connected to battery voltage, probe the (Z1) Fuel Pump ground
circuit at the Fuel Pump Module harness connector.
Does the test light illuminate brightly?
All
Yes
→ Go To 7
No
→ Repair the open/high resistance in the (Z1) fuel pump ground
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
325
STARTING
*CHECKING FUEL DELIVERY —
Continued
TEST
ACTION
APPLICABILITY
7
If there are no possible causes remaining, view repair.
All
Repair
Replace the Fuel Pump Module.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
8
Turn the ignition off.
Remove the Fuel Pump Relay from the PDC.
With a 12 volt test light connected to ground, probe the Fuel Pump Relay Fused B+
circuit at the PDC.
Does the test light illuminate?
All
Yes
→ Go To 9
No
→ Repair the Fuel Pump Realy Fused B+ circuit. Check for open fuse
in the PDC.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
9
Turn the ignition off.
Remove the Fuel Pump Relay from the PDC.
Disconnect the Fuel Pump Module harness connector.
NOTE: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities
Measure the resistance of the (A141) Fuel Pump Relay Output circuit from the relay
connector to the fuel pump module connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Fuel Pump Relay.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
No
→ Repair the (A141) Fuel Pump Relay Output circuit for an open.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
326
STARTING
*CHECKING FUEL DELIVERY —
Continued
Symptom:
*CHECKING FUEL PRESSURE LEAK DOWN
POSSIBLE CAUSES
CHECKING FUEL PRESSURE
FUEL PUMP MODULE
CHECKING FUEL 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?
All
Yes
→ Go To 2
No
→ Fuel System is operating normally.
Perform POWERTRAIN VERIFICATION TEST VER - 2 - NGC.
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 #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).
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?
All
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.
327
STARTING
Symptom:
*ENGINE CRANKS DOES NOT START
POSSIBLE CAUSES
NO START PRE-TEST
POWERTRAIN FUSES OPEN
FUEL PRESSURE OUT OF SPECS
RESTRICTED FUEL SUPPLY LINE
FUEL PUMP INLET STRAINER PLUGGED
FUEL PUMP MODULE
FUEL PUMP RELAY FUSED B+ CIRCUIT
FUEL PUMP RELAY OUTPUT CIRCUIT OPEN
FUEL PUMP RELAY
FUEL PUMP GROUND CIRCUIT OPEN/HIGH RESISTANCE
FUEL PUMP MODULE
5 VOLT SUPPLY CIRCUIT
CKP SENSOR SIGNAL CIRCUIT OPEN
CKP SENSOR SIGNAL CIRCUIT SHORTED GROUND
CKP SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
CKP SENSOR SIGNAL SHORTED TO 5 VOLT SUPPLY CIRCUIT
SENSOR GROUND CIRCUIT OPEN
ASD RELAY OUTPUT CIRCUIT
CRANKSHAFT POSITION SENSOR
IGNITION COIL
IGNITION COIL DRIVER CIRCUIT OPEN
IGNITION COIL DRIVER CIRCUIT SHORTED TO GROUND
PCM - COIL
PCM - CKP SENSOR SIGNAL
OTHER POSSIBLE CAUSES FOR NO START
328
STARTING
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст