Test NTC-3A - Checking Fuel Pressure
WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. 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.
- Release fuel pressure. Connect fuel pressure gauge to fuel supply line. Turn ignition on. Using scan tool, actuate fuel system. Observe fuel pressure gauge. See FUEL PRESSURE SPECIFICATIONS table.FUEL PRESSURE SPECIFICATIONS
Application psi (kg/cm2 ) Caravan & Voyager 24.-44. (2.4-3.1) - If fuel pressure is within specification, system is operating normally. Test is complete. If fuel pressure is more than specification, go to TEST NTC-3B. If fuel pressure is less than specification, stop actuation test. Turn ignition off.
- Inspect fuel lines for kinked or restricted lines. Repair fuel lines as necessary. Perform TEST VER-2. If no kinked or restricted lines exist, release fuel pressure. Remove fuel pressure gauge. Install fuel pressure gauge between fuel tank and fuel filter. Turn ignition on. Using scan tool, actuate fuel system. If fuel pressure is at least 5 psi (.4 kg/cm2
) more than previously recorded pressure, replace fuel filter. Perform TEST VER-2.CAUTION: DO NOT allow fuel pressure to exceed 70 psi (4.9 kg/cm2 ) when squeezing fuel return hose.
- If fuel pressure is not at least 5 psi (.4 kg/cm2 ) more than previous reading, gently squeeze fuel return hose while observing fuel pressure gauge; ensure fuel pressure does not exceed 70 psi (4.9 kg/cm2 ). If fuel pressure increases, replace fuel pressure regulator. Perform TEST VER-2. If fuel pressure does not increase, replace fuel pump and sock assembly. Perform TEST VER-2.