IN-VEHICLE SERVICE
Valve Cover and Gasket, Ranger
Removal
1. Disconnect negative battery cable.
2. Drain cooling system.
3. Disconnect the wiring connectors and locator from the intake air temperature (IAT) and mass air flow
(MAF) sensors. Remove the breather hose from the RH valve cover and remove the air cleaner tube.
4. Remove the accelerator control splash shield. Disconnect the accelerator and speed control cables
from the throttle body. Remove the accelerator control bracket with cables attached and position
aside.
5. Disconnect the idle air control (IAC), differential pressure feedback EGR (DPFE) transducer, throttle
position sensor (TPS), EGR vacuum regulator (EVR) solenoid electrical connectors and vacuum
hoses.
6. Disconnect the brake booster vacuum hose, vacuum connectors from the upper intake manifold and
the positive crankcase ventilation (PCV) valve from the LH valve cover.
7. Disconnect the 42-pin connector and the powertrain control module (PCM) harness locator from the
bracket mounted to the under side of intake manifold.
8. Disconnect the ignition coil electrical connector, locator, and the noise suppressor electrical
connector. Disconnect the ignition wires from the spark plugs.
9. Disconnect the vent line from under the throttle body.
10. Disconnect the spark plug wires from the seven retaining clips. Remove the two ignition coil bolts
from the upper intake manifold and one bolt from RH exhaust manifold. Remove the coil pack with
ignition wires as an assembly.
11. Disconnect the vacuum hose from the EGR valve. Disconnect the EGR tube flange nut from the EGR
valve. Remove the EGR valve and gasket. Discard the gasket.
12. Remove the oil level indicator tube bracket nut and remove the oil level indicator tube and indicator.
13. Remove the stud retaining the EGR outlet tube bracket to the exhaust manifold. Remove the upper
intake manifold and gasket. Discard the gasket. Tape the lower intake manifold openings.
14. Disconnect the wiring connector from the oil pressure-sending unit and locators. Position harness
aside.
15. Disconnect the upper radiator hose from the thermostat housing. Disconnect the heater hose from the
intake manifold. Position the hoses aside.
16. Remove the LH valve cover (with gasket). Discard the gasket.
Section 03-01C: Engine, 4.0L V-6 1997 Aerostar, Ranger Workshop Manual
file://C:\TSO\tsocache\VDTOM_5368\SVK~us~en~file=SVK31C12.HTM~gen~ref.HTM
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