Brad's Car Manuals: A 3rd party mirror of CHARM + LEMON car manuals
Home >> Geo >> 1990 >> Tracker Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - System/Component Tests >> Timing Control Systems >> Engine Controls - System/Component Tests >> Vacuum Advance

Vacuum Advance

Download the full database via torrent (~1.1 TB)  |  Custom patches

Remove distributor cap. Remove vacuum hose from 3-way connector and attach hand-held vacuum pump. Apply vacuum while observing advance plate assembly. Advance plate assembly should operate with a smooth movement and vacuum should not bleed off. If vacuum advance performance is incorrect, replace vacuum advance. Service or replace advance plate if it does not perform as specified.