Yukon 4WD V8-6.5L DSL Turbo VIN S (1997)
Identify the fuel injection pump roller type by checking the nameplate and referencing the table shown (see Figures 1, 2, and 3 above).
Replace the fuel injection pump. Refer to Fuel Injection Pump Replacement in SI. Call GM Technical Assistance to order a fuel injection pump.
Remove the fuel from the tank. Refer to Fuel Tank Draining Procedure in SI.
Remove the fuel sender. Refer to Fuel Sender Assembly Replacement in SI.
The fuel tank should be replaced if the tank is rusted internally.
Clean the fuel tank.
Remove the fuel strainer and replace if necessary. Refer to Fuel Sender Assembly Service in SI.
Install the fuel sender. Refer to Fuel Sender Assembly Replacement in SI.
Install the fuel tank. Refer to Fuel Tank Replacement in SI.
Install a new fuel lift pump. Refer to Fuel Lift Pump Replacement in SI.
Install both sides of the fuel feed line at the fuel lift pump. Refer to Fuel Lift Pump Replacement in SI.
Install clean diesel fuel into the tank until it is at least 1/4 full.
Install the fuel tank cap.
Install the negative battery cables.
Remove the ECM 1 fuse from the underhood relay center.
Use a suitable container to catch fuel.
Install a hose from the fuel injection pump inlet hose (hose to hose) at the fuel injection pump to a closed metal container with a capacity of at least 8
liters (2 gallons).
Crank the engine for 15 seconds with one minute cooling periods until clean fuel is pumped out.
Reinstall the inlet hose to the fuel injection pump.
Install the ECM 1 fuse in the underhood relay center.
Start the engine and check the entire fuel system for leaks while idling for 5 minutes.
Clear any DTCs.
