Test NS-4A: Repairing Low Fuel Pressure
NOTE:
Perform TEST NS-2A before proceeding.
WARNING:
High fuel pressure may be present in fuel lines. Open fuel system with caution. See FUEL SYSTEM PRESSURE RELEASE .
- If vehicle is a Breeze, Cirrus, Neon, Sebring Convertible or Stratus, go to next step. If vehicle is an Avenger, Sebring Coupe or Talon, go to TEST NS-4C .
- Record fuel pressure gauge reading. Turn ignition off. Connect Fuel Pressure Adapter (6631) to fuel supply line between fuel tank and fuel filter. Connect fuel gauge to fuel pressure adapter. Turn ignition on. Using scan tool, actuate ASD fuel system test. Compare this fuel pressure reading with previous fuel pressure reading. Go to next step.
- If fuel pressure is 46 psi (317 kPa) or more, repair restriction in chassis fuel supply line between fuel filter and fuel rail. Perform TEST VER-1A . If fuel pressure is 45 psi (310 kPa) or less, go to next step.
- Using scan tool, stop ASD fuel system actuation. Turn ignition off. Release fuel pressure. Remove fuel pressure adapter and reinstall fuel line. Install Adapter (6631) between fuel pump and fuel filter. Connect fuel pressure gauge to adapter. Turn ignition on. Using scan tool, actuate ASD fuel system test. If fuel pressure is more than 46 psi (317 kPa), replace fuel filter. Perform TEST VER-1A . If fuel pressure is 45 psi (310 kPa) or less, go to next step.
- Using scan tool, stop ASD fuel system actuation. Turn ignition off. Release fuel pressure. Remove fuel pump module. Fuel pump module is located inside fuel tank. Inspect fuel pump inlet strainer. If inlet strainer is plugged, replace inlet strainer. Perform TEST VER-1A . If inlet strainer is not plugged, replace fuel pump module. Perform TEST VER-1A .