Test NTC-3B - Checking Fuel Pressure
WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, 1995 Dodge Caravan, and 1995 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
High fuel pressure may be present in fuel lines. Open fuel system with caution. See FUEL PRESSURE RELEASE
procedure.
- Using scan tool, stop fuel system actuation. Release fuel pressure. Ensure fuel tank is at least 1/4 full before performing following test. Install fuel pressure gauge and adapter between fuel tank and filter at rear of vehicle.
- Remove fuel return line from fuel pump at fuel tank. Connect Fuel Pressure Test Adapter (6541) to fuel return line. Place other end of adapter hose into an approved 2-gallon gasoline can. Turn ignition on.
- Using scan tool, actuate fuel system. Observe fuel pressure gauge. If fuel pressure is 43-53 psi (3.0-3.7 kg/cm2 ), repair fuel return line for a restriction at fuel tank. Perform TEST VER-2.
- If fuel pressure is not 43-53 psi (3.0-3.7 kg/cm2 ), stop fuel system actuation. Release fuel pressure. Reconnect fuel return line to fuel tank. Disconnect fuel return line from fuel rail.
- Attach Fuel Pressure Test Adapter (6541) to fuel return line nipple at fuel rail. Place other end of adapter hose into an approved 2-gallon gasoline can. Turn ignition on. Using scan tool, actuate fuel system. Observe fuel pressure gauge.
- If fuel pressure is 43-53 psi (3.0-3.7 kg/cm2 ), repair fuel return line for a restriction to fuel tank. Perform TEST VER-2. If fuel pressure is not 43-53 psi (3.0-3.7 kg/cm2 ), inspect fuel pressure damper line for any restrictions. Replace fuel pressure dampener line if necessary. Perform TEST VER-2. If no restrictions exist, replace fuel pressure regulator. Perform TEST VER-2.