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(3) If vacuum is less than ten inches of mercury, determine source of leak. Check vacuum line to (4) If vacuum line to engine is not leaking, check for leak at vacuum reservoir. To locate and gain (5) Verify operation of one-way check valve and check it for leaks. (a) Locate one-way check valve. The valve is located in vacuum line between vacuum reservoir (b) Connect a hand-operated vacuum pump to reservoir end of check valve. Apply vacuum. Vac- (c) Connect a hand-operated vacuum pump to vacuum source end of check valve. Apply vacuum. REMOVAL The vacuum reservoir is located under the plastic cowl plenum cover at lower base of windshield (Fig. (1) Disconnect and isolate negative battery at cable. (2) Remove both windshield wiper arm/blade assemblies. Refer to 8, Wiper and Washer Systems. (3) Remove rubber weather-strip at front edge of cowl grill (Fig. 10). (4) Remove four plastic nuts securing cowl plenum cover/grille panel to studs on cowl top panel near (5) Remove two plastic rivets securing each side of the cowl plenum cover/grille panel to cowl plenum (6) Lift cowl plenum cover/grille panel from vehicle far enough to access windshield washer and vacuum (7) Disconnect windshield washer supply hose at in-line connector. (8) Disconnect vacuum supply hose from vacuum supply connector at vacuum reservoir (Fig. 9). (9) Remove cowl plenum cover/grille panel from vehicle. (10) Remove three reservoir mounting screws (Fig. 9). (11) Remove vacuum reservoir from vehicle. INSTALLATION The vacuum reservoir is located under the plastic cowl plenum cover at lower base of windshield (Fig. (1) Install vacuum reservoir and three mounting screws to plastic cowl cover. Tighten three screws to (2) Position cowl plenum cover/grille panel to vehi- cle. (3) Connect vacuum supply hose to vacuum reser- voir. Fig. 9 Vacuum Reservoir Mounting 1 - VACUUM SUPPLY CONNECTOR Fig. 10 Cowl Grille Panel Weather-strip 1 - COWL GRILLE 8P - 8 SPEED CONTROL AN VACUUM RESERVOIR (Continued) |