Intake Manifold Removal

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Courtesy of GENERAL MOTORS COMPANY

Remove the 2 fuel rail fuel pressor sensor wiring harness bracket bolts (1).
Remove the fuel rail fuel pressor sensor wiring harness bracket (2).
Remove the 2 fuel rail return pipe bracket bolts (3).
Remove the fuel rail return pipe bracket (4).
Fig 1: Identifying Intake Manifold Bolts With Loosening Sequence
Courtesy of GENERAL MOTORS COMPANY

Loosen 9 intake manifold bolts in the sequence as shown.
Courtesy of GENERAL MOTORS COMPANY

Remove the 9 intake manifold bolts (1).
Remove the intake manifold (2).
Remove and DISCARD the intake manifold gasket (3).