Exhaust Gas Recirculation (EGR) Cooler: Removal
- Remove the engine appearance cover retainers, release the engine appearance cover from the rear retainers and then remove the engine appearance cover.
- Remove the RH side air cleaner outlet pipe. Refer to: Air Cleaner Outlet Pipe RH .
- Remove the RH side CAC intake pipe. Refer to: Charge Air Cooler (CAC) Intake Pipe .
- Drain the cooling system. Refer to: Engine Cooling System Draining, Vacuum Filling and Bleeding .
- Remove the A/C compressor outlet line bracket retainer and position aside the A/C compressor outline bracket.
- Remove the CAC tube bracket retainers and remove the CAC tube bracket.
- Disconnect the electrical connectors and wiring harness retainer. Position aside the wiring harness.
- Disconnect the lower coolant hose from the EGR cooler assembly. Refer to: Quick Release Coupling
.
- Disconnect the upper coolant hose from the EGR cooler assembly. Refer to: Quick Release Coupling
.
- Loosen the clamps and disconnect the differential pressure sensor hoses.
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NOTE: The exhaust manifold heat shield provides critical protection for dual generator-equipped engines. If removed, it must be properly reinstalled.
Position aside the heat shield.
- Remove the EGR inlet tube nut.
- Remove the EGR assembly.
- Remove and discard the EGR to exhaust manifold connector.
- Remove and discard the EGR outlet tube o-ring.
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- Remove the bolts and EGR cooler assembly.
- Remove and discard the EGR valve gasket.