Removal 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.
- Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection (Single Battery) , or Battery Negative Cable Disconnection and Connection (Dual Battery)
- Throttle Body Assembly - Remove - Throttle Body Assembly Replacement
- Fuel Injector Deadener - Remove - Fuel Injector Deadener Replacement
- Fuel Injection Fuel Feed Pipe @ Intake Manifold - Remove - Fuel Injection Fuel Feed Pipe Replacement (Fuel Injector to Fuel Rail) , or Fuel Injection Fuel Feed Pipe Replacement (Fuel Pump to Fuel Rail)
Electrical Connector(1) - Disconnect
- Wiring Harness Retainer(2) - Remove
- Engine Wiring Harness Bracket Nut(3) - Remove[2x]
- Wiring Harness(4) - Reposition away
- Engine Wiring Harness Bracket(5) - Remove[2x]
Wiring Harness(1) - Disconnect
- Vacuum Pipe(2) - Remove
- Exhaust Gas Recirculation Valve - Remove - Exhaust Gas Recirculation Valve Replacement
- Engine Coolant Thermostat Housing - Remove - Engine Coolant Thermostat Replacement (LWN)
- NOTE:
Two of the Nuts (1) mount the engine coolant thermostat housing to the intake manifold and cylinder head and were removed in step 13.
Intake Manifold Nut(1, 2) - Remove[7x]
- Intake Manifold(3) - Remove
- Intake Manifold Gasket(4) - Remove and DISCARD
- NOTE:
The intake manifold has 3 gaskets, be sure to remove and DISCARD all three gaskets.
Remove and DISCARD the gaskets (1-3).
- Clean and inspect the intake manifold. Intake Manifold Cleaning and Inspection
- If replacing the intake manifold, transfer all necessary parts. Intake Manifold Disassemble
NOTE:
Only remove hoses necessary to separate the engine coolant thermostat housing from the intake manifold.