K 1500 Yukon 4WD V8-5.3L VIN Z Flex Fuel (2003)
8. Install the PCV hose with valve.
9. If equipped with vacuum assisted brakes, install the vacuum brake booster hose to the rear of the intake manifold.
10. Route the electrical harness into position over the engine.
11. Connect the knock sensor harness electrical connector to the intake manifold.
12. Connect the following electrical connectors.
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The MAP sensor (1)
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The knock sensor (2)
13. Install the fuel injectors.
14. Install the throttle body.
