W 3500 2006 Fuel Pump Installation - Service and Repair
12. Connect the fuel temperature sensor and the fuel rail pressure regulator connectors to the fuel supply pump.
13. Install the fuel feed hose.
14. Install the throttle assembly.
-
Coat the fluid gasket and mount within 7 minutes.
Tightening torque: 24 N-m (17 lb ft)
-
Install the intake throttle valve chamber hose.
15. Install the fuel pipe and fuel leak-off pipe
Fuel Supply Pump Relearn Procedure
The ECM gose through a fuel supply pump learn procedure to fine tune the current supplied to the fuel rail pressure (FRP) regurator. This learning
process in only performed when the engine is idling.
1. Install the scan tool.
2. Turn OFF the ignition for 30 seconds.
3. Turn ON the ignition, with the engine OFF.
4. Command the Supply Pump Learn Reset with the scan tool.
5. Observe the Supply Pump Status paremater with the scan tool. Confirm the scan tool indicates Not Learn.
6. Start the engine and let idle until engine coolant temperature (ECT) reads 149 °F (65 °C) or higher while observing Supply Pump Status parameter