Removal (4.9L)
- Ensure ignition key is in the OFF position. Disconnect battery cable. Remove fuel tank cap. Remove cap from pressure relief valve located on fuel supply manifold and attach EFI Pressure Gauge (T80L-9974-B). Use pressure release button on gauge to bleed off pressure and fuel into an approved container.
- Remove upper intake manifold and throttle body assembly. See UPPER INTAKE MANIFOLD & THROTTLE BODY. Remove fuel supply manifold. See FUEL SUPPLY MANIFOLD ASSEMBLY .
- Carefully remove wiring harness from injector(s) as required. Remove injectors from fuel supply manifold by using a slight twisting/pulling motion.