See Figures 1, 2, 3 and 4
TBI engines use quick connect fuel tube fittings at the ends of the nylon reinforced hoses that connect the throttle body to the fuel supply and return tubes. The fittings consists of two O-rings, a spacer (installed between the O-rings), and an O-ring retainer.
Quick connect fittings are located along the frame rail under the vehicle.
The retainer has two tabs that are squeezed against the fuel tube and then pulled outward to disconnect the fuel tube from the quick connect fitting/hose assembly. The retainer will stay on the fuel tube when the tube is disconnected. The O-rings and spacer will remain in the connector.
The O-rings and spacer can be removed with the bent end of an "L'' shaped paper clip.
A repair kit, available through the dealer parts department, consists of the O-rings, spacer and retainer installed on a disposable plastic plug which when removed from the fitting leaves the new O-rings, spacer and retainer in the fitting. When the fuel line is pushed into the fitting a click is heard and the connection is complete. Follow the repair kit instructions.