Ranger 2WD V6-245 4.0L VIN X SFI (1997)
Fuel Rail: Service and Repair
REMOVAL
1. Disconnect the electrical connectors at the idle air control valve, throttle position sensor and intake air temperature sensor.
2. Remove the fuel supply manifold shield to expose the throttle linkage. Remove the throttle cable bracket and disconnect the cable from the ball
stud on the throttle body.
3. Remove the engine air cleaner intake tube and duct from air cleaner to throttle body.
4. Disconnect the upper intake manifold vacuum connectors.
5. Disconnect the PCV valve from the rocker cover.
6. Disconnect the spark plug wires from the comb at the rear of the intake manifold.
7. Remove the canister purge line from the fitting in the throttle housing.
8. On Aerostar vehicles, remove the bolt retaining the engine oil dipstick tube.
9. Remove the bolt which retains the A/C line at the upper rear of the upper intake manifold.
10. Remove the six upper intake manifold retaining bolts.
11. Remove the upper intake manifold and throttle body as an assembly from the lower intake and fuel injection supply manifolds.
INSTALLATION
NOTE: If the lower intake manifold was removed, fill and bleed the cooling system.
1. Clean and inspect the mounting faces of the fuel injection supply manifold and upper intake manifold.
2. Position a new gasket on the mounting studs.
3. Install the upper intake manifold on the studs.
4. Install six upper intake manifold retaining nuts. Tighten to 20-25 Nm (15-18 lb ft).
5. Connect the spark plug wires to the retainer comb at the rear of the intake manifold.
6. Attach the A/C line retainer and automatic transmission vacuum line retainer at the upper intake manifold.
7. Install the canister purge line on the throttle body fitting.
8. Connect vacuum lines to the vacuum tree. Connect the electrical connector at the throttle position sensor and idle air control valve and intake air
temperature sensor.
9. Install the PCV valve in the grommet at the rear of the right rocker cover.
10. On Aerostar vehicles, attach the engine oil dipstick tube to the upper intake manifold.
11. Attach the throttle cable bracket to the upper intake manifold, then connect the throttle cable to the ball stud and install the fuel supply manifold
shield.