Removal
1. Disconnect battery ground cable (14301).2. Remove cooling fan motor/fan blade and fan shroud (8146) assembly.
3. Relieve fuel system pressure and disconnect fuel lines.
4. Remove air cleaner outlet tube (9B659).
5. Release drive belt tensioner (6B209) and remove drive belt (8620).
6. Disconnect ignition wires from spark plugs (12405).
CAUTION: Do not pull on ignition wire as wires may separate from the connector in the ignition wire boot.
7. Disconnect ignition wire and brackets (12280) from valve cover studs.
8. Remove two bolts retaining ignition wire separator (12297) to ignition coil brackets.
9. Disconnect fuel charging wiring (9D930) from both ignition coils (12029) and camshaft position sensor (CMP sensor)(6B288).
10. Remove three nuts retaining RH ignition coil bracket to engine front cover (6019). Remove ignition coil bracket, ignition coil and ignition wires from vehicle as an assembly.
11. Remove bolts retaining power steering oil reservoir (3A697) to the LH ignition coil bracket and position power steering oil reservoir out of the way.
12. Remove LH ignition coil from bracket and remove from vehicle as an assembly, with the ignition wires.
13. Remove three nuts retaining LH ignition coil bracket to engine front cover and remove.
14. Remove water pump pulley (8509).
15. Remove positive crankcase ventilation valve (PCV valve)(6A666) from valve cover (6582) and position out of the way.
16. Disconnect fuel charging wiring at the 42-pin engine harness connector and 8-pin connector leading to the mass air flow sensor (MAF sensor)(12B579).
17. Remove nut retaining A/C line to the RH front fender apron (16054).
18. Lift A/C line and feed the 42-pin connector under the line. Position 42-pin connector out of the way.
19. Disconnect fuel charging wiring from the crankshaft position sensor (CKP sensor)(6C315), A/C clutch (2884) and evaporative emission canister purge valves (EVAP canister purge valve)(9C915).
20. Raise vehicle on hoist.
21. Remove bolts retaining power steering pump to cylinder blocks (6010) and engine front cover.
NOTE: The front lower bolt on the power steering pump (3A674) will not come all the way out.
22. Wire the power steering pump out of the way.
23. Remove oil pan (6675) and oil pan gasket (6710).
24. Remove crankshaft pulley bolt (6A340) and crankshaft pulley retaining washer (6378) from crankshaft (6303).
25. Install Crankshaft Damper Remover T58P-6316-D on crankshaft pulley (6312) and cull crankshaft pulley from crankshaft.
26. Position drain pan under oil bypass filter (6714) and remove oil bypass filter.
27. Disconnect fuel charging wiring from the electronic variable orifice sensor and oil pressure sensor (9278).
28. Remove oil filter adapter (6881) and position fuel charging wiring out of the way.
29. Lower vehicle.
30. Remove nine bolts and two stud bolts retaining RH valve cover to cylinder head (6049) and remove valve cover.
31. Remove seven bolts and four stud bolts retaining LH valve cover to cylinder head and remove valve cover.
32. Remove engine front cover.
33. Remove timing chains.
34. Rotate crankshaft counterclockwise 45 degrees from toe.
CAUTION: Crankshaft must be in this position prior to rotating camshafts (6250) or damage to pistons and/or valve train will result.
35. Install Valve Spring Compressor T91P-6565-A under camshaft. and on top of valve spring retainer.
NOTE: This ensures that all pistons (6108) are below the top of the cylinder block deck face.
36. Compress valve spring far enough to remove rocker arm.
NOTE: Valve Spring Spacer T91P-6565-AH must be installed between valve spring coils. Camshaft must be at base circle before compressing valve spring (6513). Rotate camshaft as required until all rocker arms (6564) are removed.
37. Repeat above two steps until all rocker arms are removed.
38. Remove 14 bolts retaining camshaft bearing caps (6B280) to cylinder head.
39. Tap upward on camshaft bearing caps at position shown and gradually lift camshaft bearing caps from cylinder head.
40. Remove camshaft straight upward to avoid bearing damage.
41. If both camshafts are being serviced, repeat Steps 35 through 40 to remove the other camshaft.