Manifold, Exhaust: Installation

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LEFT SIDE: 

1. Prior to installation, make sure all gasket mating surfaces (1, 2) are clean and free of any debris.
2. Using a new exhaust manifold gasket, position the exhaust manifold to the cylinder head, align the gasket and start two upper retaining blots finger tight.
   Fig 1: Exhaust Manifold Tightening Sequence - Left

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3. Using the sequence shown, Install the remaining exhaust manifold retaining bolts and tighten to 25 N.m (18 ft. lbs.).
4. Install the heat shield and tighten nuts to the proper specification. Refer to TORQUE SPECIFICATIONS  .

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5. Position the coolant bottle (1) and install the retaining bolts (2).
   Fig 2: Exhaust Manifold Tightening Sequence - Right

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   RIGHT SIDE: 

6. Prior to installation, make sure all gasket mating surfaces are clean and free of any debris.
7. Using a new exhaust manifold gasket, position the exhaust manifold to the cylinder head, align the gasket and start two upper retaining blots finger tight.
8. Using the sequence shown, install the remaining exhaust manifold retaining bolts and tighten to 25 N.m (18 ft. lbs.).
9. Install the heat shield and tighten the nuts to the proper specification. Refer to TORQUE SPECIFICATIONS  .

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   Position the wire harness mounted onto the right hand inner fender panel and secure fasteners.

10. Install the Power Distribution Center (PDC) and mounting bracket.
    CAUTION:

    Over or under tightening the knock sensor mounting bolts will affect knock sensor performance, possibly causing improper spark control.

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11. Raise and support the vehicle.
12. Position the appropriate knock sensor (1) onto the engine block.
13. Install the appropriate knock sensor retaining bolt (2) and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS  .
14. Connect the appropriate knock sensor electrical connector (3).
15. Snap the heat shield onto the appropriate knock sensor.

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16. Install both catalytic converters (4). Refer to CONVERTER, CATALYTIC, INSTALLATION, 5.7L .

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17. Install both front engine mounts (2) and mounting brackets. Refer to INSULATOR, ENGINE MOUNT, FRONT, INSTALLATION, 5.7L .

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18. Install both catalytic converters (4). Refer to CONVERTER, CATALYTIC, INSTALLATION, 5.7L .
19. Connect the oxygen sensor electrical connectors (2).
20. Lower the vehicle.

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21. Position the air filter housing into the engine compartment.
22. Install the air filter housing retaining bolt (3) and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS  .
23. Connect the clean air tube to the throttle body and the air filter housing and tighten clamps to 3 N.m (30 in. lbs.).
24. Connect the make up air hose (MUA) (2).
25. Connect the intake air temperature (IAT) sensor (5) connector.

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26. Position the engine cover (2) and secure the retaining grommets onto the ball studs.
27. Connect the negative battery cable.
28. Start the engine and check for leaks.