Yukon/Denali XL 1500 2WD V8-5.3L VIN Z Flex Fuel (2004)
Intake Manifold: Service and Repair
Intake Manifold Replacement
Intake Manifold Replacement
Removal Procedure
Important: The intake manifold, throttle body, fuel rail, and injectors may be removed as an assembly. If not servicing the individual components,
remove the manifold as a complete assembly.
1. Remove the throttle body. Refer to Throttle Body Assembly Replacement in Computer and Controls - 4.8L, 5.3L, and 6.0L.
2. Remove the fuel injectors. Refer to Fuel Injector Replacement in Computer and Controls - 4.8L, 5.3L, and 6.0L.
3. Disconnect the following electrical connectors:
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Manifold absolute pressure (MAP) sensor (1)
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Knock sensor (2)
4. Remove the knock sensor harness electrical connector from the intake manifold.
5. Set the electrical harness.
6. If equipped with vacuum assisted brakes, remove the vacuum brake booster hose from the rear of the intake manifold.