K 1500 Truck 4WD V8-5.7L VIN R (1997)
5. Connect a hose to the fuel feed pipe at the fuel injection unit. Insert the other end of the hose into a 3.8 liter (one gallon) fuel can.
6. Connect the negative battery cable.
7. Add twenty-three liters (six gallons) of clean fuel into the fuel tank.
8. Purge the fuel pump and lines.
9. Using a fused jumper, connect the fuel pump test terminal to B+ to operate the fuel pump. Operate the fuel pump until 2 liters (1/2 gallon) flows
into the fuel can.
10. Remove the jumper.
11. Connect the fuel line at the fuel injection unit.
12. Check for fuel leaks
12.1.
Turn the ignition ON for 2 seconds.
12.2.
Turn OFF the ignition for 10 seconds.
12.3.
Again, turn the ignition switch to the ON position.
12.4.
Check for fuel leaks.
Steel Fuel Line Repair
Line Repair
1. Cut a piece of fuel hose 4 inches (100 mm) longer than the section of line to be removed. If you remove more than 6 inches (152 mm), use a
combination of steel pipe and hose. The hose length should not be more than 10 inches total.
2. With a tube cutter, cut a section of the pipe to replace. Use the first step to form a bead on the ends of the pipe and, also, on the new section of
pipe, if used.
3. Slide the hose clamps onto the pipe and push the hose 2 inches (51 mm) onto each portion of the fuel pipe. Tighten a clamp on each side of the
repain
4. Secure fuel line to the frame.
5. Check for leaks.