Fuel Injector Fuel Meter Body (4.3L): Installation
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
The number 3 fuel tube must be positioned behind the number 1 fuel tube to eliminate interference with the upper intake manifold when installed.
- 1. Position the fuel tubes of the MFI fuel meter body in the forward position. See Fig 1. Install the MFI fuel meter body into the fuel meter body bracket on the lower intake manifold. Push down firmly to lock the fuel meter body into the fuel meter body bracket.
- Insert No. 3 fuel tube into correct casting socket, followed by No. 5, 1, 2, 4 and No. 6 last. Ensure electrical connectors on the injectors do not interfere with each other and point towards the center of the intake manifold. Rotate the electrical connectors inboard, if necessary.
- Install upper intake manifold. See INTAKE MANIFOLD . Tighten all nuts and bolts to specification. See TORQUE SPECIFICATIONS . Connect negative battery cable.
- Turn ignition switch to ON position for 2 seconds. Turn ignition switch to OFF position for 10 seconds. Turn ignition switch to ON position. Check for fuel leaks. Repair as necessary.
IMPORTANT:
Lack of lubrication will make installation of the upper intake manifold difficult and may cause damage to the O-ring.