System Diagram

Exhaust Gas Recirculation (EGR) system, overview

Note:
- The function/control of the Exhaust Gas Recirculation (EGR) system is managed by the Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248- via the EGR Vacuum Regulator solenoid valve -N18-.
- The cone shaped plunger in the mechanical EGR valve ensures that various cross sectional openings are possible at different plunger heights.
- Every possible valve position is provided via pulsed control.
- Replace self-locking nuts.






Exhaust Gas Recirculation (EGR) system components, removing and installing
1. Intake manifold
2. O-ring
- Replace
3. Throttle valve
- With EGR valve and control flap
4. Exhaust Gas Recirculation (EGR) valve
- Component of intake support
- Can only be replaced with intake support assembly
- Checking, Refer to Exhaust Gas Recirculation (EGR) System, Testing and Inspection
5. 10 Nm (7 ft. lbs.)
6. from Air Cleaner
7. Gasket
- Replace
8. 25 Nm (18 ft. lbs.)
9. Connecting pipe
- EGR cooler to intake support
10. Connecting pipe
- EGR cooler to exhaust elbow
11. Exhaust manifold
12. 25 Nm (18 ft. lbs.)
13. to heat exchanger
14. EGR cooler
15. Connection
- Heater
16. to Coolant expansion tank