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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - Cleaning, Inspection And Adjustment >> Test Pressurizing The Tank System (B6294S2; B6294T; 2002-2006) >> Test Pressurizing The Tank System >> Connecting The Manometer

Connecting The Manometer

Fig 1: Hose, EVAP Canister And EVAP Canister Purge Valve
GLL102850Courtesy of VOLVO CARS OF NORTH AMERICA.

Expose the canister purge (CP) valve.

Disconnect the hose (1) between the EVAP canister and the EVAP canister purge valve.

Connect manometer 9995646 to the hose (1) and the pressure regulator 9995544 to the manometer.

CAUTION:

The cock should face the pressure regulator.

Connect compressed air to the pressure regulator

Set the pressure to a maximum of 7 kPa  (read off from manometer 999 5646).

Pressurize the fuel tank system by turning the cock at right angles to the hoses.

Allow pressure to build up in the tank system.

Check that the system does not leak.

Stop the pressurization by turning the cock towards the hose (1) as illustrated in A.

NOTE:

A certain amount of leakage may occur from the leak diagnostic unit. The pressure may therefore drop when the pressurization is stopped. This is normal. The leakage is caused because the pressurization is not carried out using the leak diagnostic unit.

CAUTION:

Never leave the car unattended with the tank system pressurized