Exhaust Gas Recirculation: Description and Operation

Exhaust gas recirculation system

Note:
^ The function and control of the exhaust gas recirculation system is undertaken by the Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) J248- to the EGR vacuum regulator valve -N121-.
^ Pulsed control makes every conceivable valve position possible.
^ Replace self-locking nuts.
^ Vacuum hose connection diagram. Refer to Exhaust Gas Recirculation, Diagrams, Mechanical.