Test NTC-3A - Checking Fuel Pressure
WARNING: This page is about a different car, the 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, 1995 Dodge Dakota, and 1995 Dodge Cab & Chassis. 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 rail. Turn ignition on. Using DRB, actuate fuel system. If fuel pressure is 34-45 psi (2.5-3.3 kg/cm2 ), fuel pressure is normal. Test is complete. If fuel pressure is not 34-45 psi (2.5-3.3 kg/cm2 ), record fuel pressure reading.
- If pressure is more than 45 psi (3.3 kg/cm2 ), replace filter/regulator. Perform TEST VER-2. If pressure is more than 45 psi (3.3 kg/cm2 ). Stop fuel system actuation if pressure is not more than 45 psi (3.3 kg/cm2 ). 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, replace filter/regulator and primary filter. Perform TEST VER-2.
- Remove fuel pressure gauge from fuel rail. Install fuel pressure gauge between fuel tank and fuel filter. Turn ignition on. Using DRB, actuate fuel system. If fuel pressure is at least 10 psi (.7 kg/cm2
) more than previously recorded pressure, replace fuel filter. Perform TEST VER-2.CAUTION: DO NOT allow fuel pressure to exceed 60 psi (4.2 kg/cm2 ) when squeezing fuel return hose.
- If fuel pressure is not at least 10 psi (.7 kg/cm2 ) more than previous reading, gently squeeze fuel return hose while observing fuel pressure gauge. Ensure fuel pressure does not exceed 60 psi (4.2 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.