Purge Control Valve (Turbo Models)
- Remove purge control valve. Lightly blow air into purge control valve fitting "D". Check that air does not blow through to fitting "C". See Fig 1 .
- Using a hand held vacuum pump, apply 8 in. Hg vacuum to fitting "A". Lightly blow air into purge control valve fitting "D". Check that air blows through to fitting "C".
- Apply 16 in. Hg vacuum to fitting "A". See Fig 1 . Check to see that vacuum holds. Apply 16 in. Hg vacuum to fitting "B". Check to see that vacuum holds.
- Replace purge control valve if it does not test as described.