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WARNING: This page is about a different car, the 2007 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the cooling system. For additional information, refer to ENGINE COOLING article.
  2. Remove the air cleaner outlet pipe. For additional information, refer to INTAKE AIR DISTRIBUTION AND FILTERING article.
  3. Remove the upper radiator hose.
  4. Disconnect the A/C vacuum reservoir hose.
  5. Disconnect the crankcase breather hose.


  1. Disconnect the heated PCV coolant hose from the intake manifold heated PCV fitting.
  2. Disconnect the heater hose from the thermostat housing.
  3. Disconnect the heater hose from the front lower heater tube assembly.
  4. Disconnect the heater hose from the rear upper heater tube assembly.
  5. Disconnect the heater hose from the rear lower heater tube assembly.
  6. Remove the heater tube assembly bolts.
    • To install, tighten the rear bolt to 23 Nm (17 lb-ft).
    • To install, tighten the front bolt to 28 Nm (21 lb-ft).
  7. Lift the heater tube assembly and detach the wiring harness retainer. Remove the heater tube assembly.
  8. Disconnect the heater hose from the heater core and position the heater hose aside.
  9. Disconnect the mass air flow (MAF) sensor electrical connector.
  10. Detach the wiring harness retainer from the generator and position the wiring harness aside.
    11. CAUTION: It is important to twist the spark plug wire boots while pulling upward to avoid possible damage to the spark plug wire.
    Fig 1: Pulling Spark Plug Wire Off Spark Plug
    G03948432Courtesy of FORD MOTOR CO.
    NOTE: Spark plug wires must be connected to the correct spark plug. Mark spark plug wire locations before removing them.
    NOTE: Apply silicone brake caliper grease and dielectric compound to the inside of the spark plug wire boots before connecting them.
  11. Using the special tool, disconnect the RH spark plug wires from the spark plugs.
  12. Detach the spark plug wire retainer from the valve cover stud bolt and position the spark plug wires aside.
  13. Disconnect the RH fuel injector electrical connectors.
  14. Detach the wiring harness retainer from the valve cover stud bolt and position the wiring harness aside.
  15. Loosen the bolts and remove the RH valve cover.
    • To install, tighten to 10 Nm (89 lb-in).
    16. CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges which make leak paths.
  16. Clean the sealing surfaces and inspect the RH valve cover gasket. Install a new gasket if necessary.
  17. To install, reverse the removal procedure.
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