C 2500 Truck 2WD V8-5.7L VIN R (1997)
48.
Install the clamp (2) and nuts (1).
Tighten
Tighten the nuts to 3 N.m (27 lb in).
49.
Inspect the 0-rings at the fuel pipe-to-vehicle lines (1). Replace as necessary.
Tighten
Tighten the fuel line nuts to 30 N.m (22 lb ft).
50.
Apply threadlock, P/N 12345382, or equivalent to the threads of the fuel pipe bolt. Install the bolt.
Tighten
Tighten the fuel pipe bolt to 6 N.m (53 lb in).
51.
Install ignition wires 1, 3, 5, and 7 to the distributor cap.
52.
Install the vacuum brake booster hose and connector to the intake manifold.
53.
Add one (1) ounce of Port Fuel Injector Cleaner, P/N 12345104 (Canada P/N 10953467), to the vehicle fuel tank for each gallon of gasoline
estimated to be in the tank. Instruct the customer to add the remainder of the bottle of Port Fuel Injector Cleaner to the vehicle fuel tank at the next
fill-up. Further recommend that Port Fuel Injector Cleaner be added to the fuel tank every 3000 miles (4800 km) particularly if the vehicle is not
started and driven every day. Inform the customer that the Port Fuel Injector Cleaner is not to be used at every fill up but may be reapplied every
3000 miles (4800 km).
54.
Tighten the fuel tank filler cap.
55.
Start the engine and check for fuel leaks.
56.
Use the Tech 2(R) Scan Tool to check for any stored Powertrain DTC codes. Clear codes as required.
57.
Disconnect the Tech 2(R) Scan tool.
58.
Install the engine cover.
59.
Advise customer to change brands of fuel.
Central SFI to MFI Conversion Instructions
This procedure outlines the steps required to replace the existing Central SFI Fuel System with a new MFI (Multiport Flexible Injection) Fuel System.
Be sure to use the appropriate year and model Service Manual for proper disassembly and re-assembly procedure(s).
Important:
Cleaning the CSFI injectors is the preferred repair. The CSFI unit should not be replaced until cleaning has been attempted. If the vehicle should
