V90 L6-2.9L VIN 96 B6304S (1998)
5
Leakage test, vacuum
Move the selector knob to the VACUUM position. Slowly pump out the air to negative (-) 3 kPa (0.4 psi). Wait until the vacuum has stabilized. A
pressure increase of 1 kPa (0.2 psi) every 30 seconds is permissible.
If fuel cap fails the test it must be replaced.
6
Testing vacuum relief valve
Pump out the air until the low pressure valve opens. This should occur between negative (-) 4kPa (0.6 psi) and negative (-) 12 kPa (1.7 psi).
7
Leakage test, pressure