Installation Procedure

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY

Intake Manifold Gasket (2) - Install NEW gaskets. [2x]
Intake Manifold (1) - Install
Fig 1: Intake Manifold Bolts With Tightening Sequence
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CAUTION:
Refer to Fastener Caution .

Intake Manifold Bolt (1) - Tighten the bolts in sequence. [10x]

Tighten
1. First Pass: 5 N.m (44 lb in)
2. Final Pass: 10 N.m (89 lb in)
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Vacuum Hose (1) @ Intake Manifold - Connect
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Electrical Connector (1) @ Manifold Absolute Pressure Sensor - Connect
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Electrical Connector (1) @ Throttle Body - Connect
Generator - Install - Generator Replacement (L96, LC8)
Engine Oil Pressure Sensor - Install - Engine Oil Pressure Sensor and/or Switch Replacement
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Fuel Injection Fuel Rail Assembly (1) - Install - Fuel Injection Fuel Rail Assembly Replacement (L96)