Valve Cover - LH
Valve Cover - LH
NOTE: 4.6L shown, 5.4L similar.
Removal
All engines
1. Remove the engine cover.
2. Remove the Air Cleaner (ACL) assembly and the ACL outlet pipe.
3. Disconnect the crankcase ventilation tube quick connect coupling from the valve cover.
4.6L (2V) engine
4. Remove the oil level indicator and tube support bracket net.
5.4L (2V) engine
5. Remove the oil level indicator and tube support bracket nut.
6. Remove the bolt and position the oil level indicator and tube aside.
4.6L (2V) engine
7. Disconnect the upper and lower fittings and remove the EGR system module tube.
All engines
8. NOTE: 4.6L (2V) shown, 5.4L (2V) similar.
Disconnect the LH fuel injector electrical connectors, ignition coil electrical connectors and the wire harness retainers.
9. Disconnect the wiring harness retainer and position the engine control wiring harness aside.
10. Disconnect the electrical connector.
11. Disconnect the engine wiring harness retainer and the 2 PCM electrical connectors.
12. Disconnect the transmission wiring harness retainers from the engine wiring harness and position both the engine and transmission wiring harness aside.
13. Remove the 2 bolts and position the cooling fan shroud onto the cooling fan.
14. Remove the 4 exhaust Y-pipe flange nuts.
- Discard the flange nuts.
15. NOTE: RH shown, LH similar.
Remove the 4 engine support insulator-to-crossmember nuts.
16. Using a jack positioned on the RH rear of the cylinder block, raise the engine 25.4 mm (1 in).
17. Remove the engine support insulator-to-crossmember bracket nut.
18. Remove the 2 nuts and the engine support insulator-to-crossmember bracket.
19. Using the jack positioned on the RH rear of the cylinder block, lower the engine 51 mm (2 in).
20. NOTICE: 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. Use a plastic scraping tool to clean sealing surfaces.
Remove the LH valve cover.
- Fully loosen the fasteners and remove the valve cover.
- Clean the valve cover mating surface of the cylinder head with silicone gasket remover and metal surface prep. Follow the directions on the packaging.
- Inspect the valve cover gasket. If the gasket is damaged, remove and discard the gasket. Clean the valve cover gasket groove with soap and water or a suitable solvent.
Installation
All engines
1. Apply instant gel adhesive completely around the gasket groove in the valve cover. Install the new valve cover gasket.
2. NOTE: If not secured within 4 minutes, the sealant must be removed and the sealing area cleaned with silicone gasket remover and metal surface prep. Follow the directions on the packaging. Allow to dry until there is no sign of wetness, or 4 minutes, whichever is longer. Failure to follow this procedure can cause future oil leakage.
Apply a bead of silicone gasket and sealant in 2 places where the engine front cover meets the cylinder head.
3. Position the valve cover and gasket on the cylinder head and loosely install all of the fasteners.
4.6L (2V) engine
4. Tighten the 11 fasteners in the sequence shown.
- Tighten to 10 Nm (89 lb-in).
5.4L (2V) engine
5. Tighten the 13 fasteners in the sequence shown.
- Tighten to 10 Nm (89 lb-in).
All engines
6. Using the jack positioned on the RH rear of the cylinder block, raise the engine 51 mm (2 in).
7. Position the RH engine support insulator-to-crossmember bracket and install the 2 nuts.
- Tighten to 90 Nm (66 lb-ft).
8. Install the engine support insulator-to-crossmember bracket nut.
- Tighten to 90 Nm (66 lb-ft).
9. Using the jack positioned on the RH rear of the cylinder block, lower the engine.
10. NOTE: RH shown, LH similar.
Install the 4 engine support insulator nuts.
- Tighten to 90 Nm (66 lb-ft).
11. Install the new 4 exhaust Y-pipe flange nuts.
- Tighten to 40 Nm (30 lb-ft).
12. Position the cooling fan shroud and install the 2 bolts.
- Tighten to 6 Nm (53 lb-in).
13. Position both the engine and transmission wiring harness and connect the transmission wiring harness retainers to the engine wiring harness.
14. Connect the engine wiring harness retainer and the 2 PCM electrical connectors.
15. Connect the electrical connector.
16. Position the engine control wiring harness retainer onto the valve cover stud.
17. NOTE: 4.6L (2V) shown, 5.4L (2V) similar.
Connect the LH ignition coil and fuel injector electrical connectors and the wiring harness retainers.
4.6L (2V) engines
18. Install the EGR tube.
- Hand-tighten the upper and lower fittings.
- Tighten to 42 Nm (31 lb-ft).
All engines
19. Position the oil level indicator and tube and install the bolt.
- Tighten to 10 Nm (89 lb-in).
4.6L (2V) engine
20. Install the oil level indicator and tube support bracket nut.
- Tighten to 10 Nm (89 lb-in).
5.4L (2V) engine
21. Install the oil level indicator and tube support bracket nut.
- Tighten to 25 Nm (18 lb-ft).
22. Position the crankcase ventilation tube and connect the quick connect coupling to the valve cover.
23. Install the ACL housing and ACL outlet pipe.
24. Install the engine cover.