Fuel Injection Lines: Removal
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1994 GMC Yukon, 1994 GMC Suburban, 1994 GMC Pickup, 1994 GMC Cab & Chassis, and 1994 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect negative battery terminal. On "G" series, remove engine cover. On all models, disconnect air cleaner at valve cover. Remove crankcase vent bracket.
- Loosen vacuum pump hold-down clamp. Rotate pump to access intake manifold bolts. Remove injection line clips and intake manifold. Install Protective Covers (J-29664-1) in intake ports.
- Remove injection line clips. On "G" series, raise vehicle (for left bank). On all models, disconnect and cap injection lines at injector nozzles. Remove lines at pump. Tag injector lines for reassembly reference. Cap all openings.