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Home >> Chevrolet >> 2006 >> Optra LS, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (HVAC Systems - Manual) >> Introduction >> Manual HVAC General Information >> System Components - Control >> Vacuum Tank

Vacuum Tank

WARNING: This page is about a different car, the 2005 Chevrolet Optra5 and 2005 Chevrolet Optra. However, it is still accessible from the selected car via links, so may be relevant.

During heavy acceleration, the vacuum supply from the manifold drops. A check valve in the vacuum tank maintains vacuum so that under load conditions vacuum will be available for continuous use.

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