Removing fuel pressure gauge

Fig 1: Identifying Draining Unit Hose Connection To Hose Nipple On Door Mirror

Courtesy of VOLVO CARS OF NORTH AMERICA.

Corrective actions: 

• Connect the evacuation unit hose to the hose nipple on the door mirror.
• Start the evacuation unit so there is suction in the hose.

Fig 2: Identifying Fuel Pressure Gauge Connection (T-Valve Cock To Middle Position)

Courtesy of VOLVO CARS OF NORTH AMERICA.

Corrective actions: 

• Remove the tie strap locking the cock on the T-nipple.
• Turn the cock to the middle position (position 2) to obtain suction in the hose to the nipple in the fuel manifold on the engine.