Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Remove the turbocharger boost sensor bracket bolt.
Remove the turbocharger boost sensor with bracket.
Remove the intake air heater nut and wire terminal from the intake air heater.

Fig 1: View Of Intake Air Heater & Turbocharger Boost Sensor Components

Courtesy of GENERAL MOTORS CORP.

Remove the intake air heater and gasket, if replacing the tube.
Remove the following fuel pipes and wiring harnesses:
- The main fuel pipes. Refer to Quick Connect Fitting(s) Service (Metal Collar) in Engine Controls-6.6 L.
- The fuel junction block. Refer to Fuel Junction Block Replacement in Engine Controls-6.6 L.
- The fuel hoses to the fuel injection control module (FICM) and the FICM wiring harness. Refer to Fuel Injection Control Module Replacement in Engine Controls-6.6 L.
- The fuel pipes to the left fuel rail. Refer to Fuel Rail Assembly Replacement - Bank 2 in Engine Controls-6.6 L.
Remove the exhaust gas recirculation (EGR) cooling hose clamps.
Remove the EGR cooling hose.
Remove the EGR bolts/nuts.
Remove the EGR cooler bracket bolts.
Remove the EGR cooler bracket.
Remove the EGR and cooler.

Fig 2: View Of EGR & Cooler Components

Courtesy of GENERAL MOTORS CORP.

Remove the intake manifold tube bolts/nuts.
Remove the intake manifold tube.
Remove and discard the gaskets.

Fig 3: View Of Intake Manifold Tube, Gasket & Bolts/Nuts (California Emissions)

Courtesy of GENERAL MOTORS CORP.

Clean the intake manifold tube in cleaning solvent and air dry.