Ignition Cable: Service and Repair

Spark Plug Harness Routing:

NOTICE: The boots should be twisted one-half turn while removing. Do not pull on the wire harnesses to remove them from the spark plugs. Pull on the boots, or use a tool designed for this purpose.

REMOVE OR DISCONNECT
Numbers included in this procedure refer to caption numbers in the included images.

1. Left bank spark plug wire boots from spark plugs.
2. Left bank spark plug wire harness support channel bolts / screws (19) and channel. Rear bolt / screw (19) is located behind exhaust manifold takedown. Loosen this bolt / screw using a 10 mm wrench then slide channel upward to disengage from bolt / screw (19).
3. Left bank spark plug wire harness from clip (17) located behind air injection reactor (AIR) pump.
4. Right bank spark plug wire boots from spark plugs.
5. Air intake resonator.

With mechanical cooling fan:
A. Upper radiator fan shroud,
B. Loosen fan pulley nuts.
C. Fan belt.
D. Mechanical fan and pulley.
E. Mechanical fan pulley bracket nuts and bracket.
F. Radiator outlet pipe nuts from A/C compressor mounting studs.

6. Serpentine drive belt.
7. Raise and suitably support vehicle.
8. Transmission oil cooler line support bolt / screw from accessory drive bracket.
9. Serpentine drive belt tensioner bolts/screws and tensioner.

10. A/C compressor attaching bolts/screws
Reposition A/C compressor to provide access to front wire harness support (27).
11. Right wire harness support bolt / screw (28).
12. Right wire harness from support (27).
13. Left and right bank spark plug wire harnesses (6) from distributor.
14. Left wire harness from clips (17, 20, 21 and 23).
^ Insert screwdriver into tab on top of clip to disengage.
15. Right wire harness from clips (16, 17, and 21).
^ Insert screwdriver into tab on top of clip to disengage.

NOTICE: When replacing spark plug wire harnesses (secondary wiring), route the wire harnesses correctly and through the proper retainers. Failure to route the wire harnesses properly can lead to radio ignition noise and cross-firing of the spark plugs, or shorting of the leads to ground.

INSTALL OR CONNECT
1. Right wire harness to clips (16, 17 and 21).
2. Left wire harness to clips (17, 20, 21 and 23).
3. Right wire harness to support (27).
4. Right wire harness support bolt / screw (28).

Tighten
^ Bolt / screw (28) to 40 Nm (30 lb ft.).

5. A/C compressor to bracket.
6. A/C compressor attaching bolts / screws and rear bracket nut.

Tighten
A. A/C compressor bolts / screws to 50 Nm (37 lb ft.).
B. A/C compressor rear bracket nut to 41 Nm (30 lb ft.).

7. Serpentine drive belt tensioner and tensioner bolts / screws.

Tighten
^ Tensioner bolts / screws to 25 Nm (18 lb ft.).

8. Transmission oil cooler line support bolt / screw.

Tighten
^ Oil cooler line support bolt / screw to 1.9 Nm (17 lb in.).

9. Lower vehicle.
10. Serpentine drive belt.

With mechanical cooling fan:
A. Radiator outlet pipe nuts from A/C compressor mounting studs.

Tighten
^ Radiator outlet pipe nuts to 16 Nm (12 lb ft.).

B. Mechanical fan pulley bracket nuts and bracket.

Tighten
^ Mechanical fan pulley bracket nuts to 50 Nm (37 lb .ft).

C. Mechanical fan pulley, fan and nuts.
^ Finger tighten only.
D. Fan belt.

Tighten
^ Mechanical fan nuts to 26 Nm (19 lb ft.).
E. Upper radiator fan shroud.

11. Air intake resonator.
12. Right bank spark plug wire boots to spark plugs.
13. Left bank spark plug wire harness to clip (17) located behind AIR pump.
14. Left bank spark plug wire harness support channel and bolts/screws (19). Rear bolt / screw (19) is located behind exhaust manifold takedown. Slide channel onto bolt / screw (19) then tighten using a 10 mm wrench.
15. Left bank spark plug wire harness boots to spark plugs.