Intake Manifold: Removal
WARNING: This page is about a different variant/trim than selected.
- Remove the auxiliary battery. For additional information, refer to BATTERY, MOUNTING AND CABLES .
- Remove the cooling fan stator - 6.0L diesel engine. For additional information, refer to ENGINE COOLING .
- Remove the degas bottle. For additional information, refer to ENGINE COOLING .
- Remove the upper radiator hose.
- Remove the turbocharger-to-charge air cooler duct.
Vehicles with dual generators
- Remove the accessory drive belt.
- Remove the bolt and the accessory drive belt tensioner.
- Remove the accessory drive belt.
- Remove the bolts, bracket and accessory drive belt idler pulley.
- Remove the bolts and the accessory drive belt tensioner.
- Disconnect the wire retainer, generator electrical connector and B+ wire.
- Remove the bolts and the generator with mounting bracket.
Vehicles with single generator
- Remove the accessory drive belt.
- Position the boot back and disconnect the generator B+ wire and electrical connector.
- Remove the 3 bolts and the generator.
- Remove the turbocharger and the turbocharger pedestal. For additional information, refer to FUEL CHARGING & CONTROLS - TURBOCHARGER .
- Loosen the clamps and remove the charge air cooler duct.
- Remove the bolts and position the heater hose tube aside.
- Remove and discard the O-ring.
- Disconnect the manifold absolute pressure (MAP) sensor hose.
- Disconnect the engine coolant vent hose.
- Remove the fuel injector control module. For additional information, refer to ELECTRONIC ENGINE CONTROLS - DIESEL ENGINE .
- If equipped with a heat shield bracket, remove the retaining nuts from the heat shield bracket.
- Disconnect the ground wire from the stud.
- If equipped with a heat shield bracket, disconnect the wiring retainer from the heat shield bracket.
- If equipped with a heat shield bracket, remove the bolts and heat shield bracket.
- Remove the top 2 bolts from the injector pressure regulator (IPR) heat shield.
- Remove or position aside the heat insulating wrap. Disconnect the wiring retainer and the injection pressure regulator (IPR) valve electrical connector.
- Disconnect the exhaust gas recirculation (EGR) valve electrical connector.
- Disconnect the engine oil pressure (EOP) sensor electrical connector.
- Disconnect the engine oil temperature (EOT) sensor electrical connector.
- If equipped, disconnect the exhaust gas recirculation (EGR) throttle position control module electrical connector.
- If equipped, disconnect the EGR throttle position sensor electrical connector.
- Disconnect the pin-type retainer and engine coolant temperature (ECT) sensor.
- Disconnect the intake air temperature 2 (IAT2) sensor electrical connector.
- Disconnect the exhaust pressure sensor electrical connector.
- Disconnect the 8 fuel injectors electrical connectors. Remove the nut and the ground wire.
- Disconnect the fuel line fittings.
- Remove and discard the sealing washers.
- Remove the 4 bolts and the oil filter housing.
- Remove the bolt and the oil filter return tube.
- Remove the fuel line.
- Remove the bolt and the banjo fitting from the fuel line.
- Discard the sealing washers and remove the fuel line.
- Pull the EGR cooler clamp forward, twist and then slide the EGR cooler hose rearward to remove.
- If equipped, remove the nuts and the turbocharger heat shield.
- Loosen the EGR cooler V-clamp.
- Remove the bolts and the intake manifold.
- Remove the intake manifold gaskets.
- Clean and inspect the gaskets. Install new gaskets if necessary.
- Clean and inspect the sealing surfaces.
- Remove and inspect the front module O-ring seal.
All vehicles
NOTE:
Engine side shown, charge air cooler side similar.
All vehicles
NOTE:
Engine side shown, charge air cooler side similar.
NOTE:
Early build shown, late build similar.
NOTE:
LH side shown, RH side similar.
NOTE:
It is necessary to remove the fuel filter and drain the housing.
NOTE:
It is necessary to remove the oil filter and drain the housing.
NOTE:
Align the flat edge with the index feature located on the coolant supply port.
NOTE:
Keep the EGR cooler V-clamp with the turbo adapter pipe.