CTS-V V8-6.0L VIN U (2006)
Fuel Filler Hose: Description and Operation
FUEL TANK FILL PIPE AND HOSE
The fuel tank fill pipe is positioned at the rear of the vehicle on the left side. A built in restrictor in the fuel tank fill pipe prevents refueling with leaded
fuel. The fuel tank fill pipe connects to the left fuel tank with a rubber hose. Fuel transfers to the right fuel tank during fueling by a stainless steel
convoluted crossover tube/hose which connects the left fuel tank to the right fuel tank.
FUEL TANK CROSSOVER TUBE/HOSE
The fuel tank crossover tube/hose is comprised of a convoluted stainless steel outer tubing. The crossover tube/hose internally houses the auxiliary fuel
feed pipe and the auxiliary fuel return pipe. The crossover tube/hose has the following functions:
-
Fuel liquid and vapor transfer during refueling
-
High pressure siphon jet pump feed
-
Low pressure siphon jet pump return
-
Electrostatic discharge ground to body
