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Inspection HOSES AND CONNECTORS I Check condition of vacuum hoses and connectors. I Check vacuum hoses and check valve for air tightness. CHECK VALVE I Check vacuum with a manual vacuum pump. Connect to booster Vacuum should exist. Connect to engine Vacuum should not exist. VACUUM WARNING SWITCH Test continuity though vacuum warning switch with an ohmmeter Vacuum Less than 26.7 kPa (267 mbar, 200 mmHg, 7.87 inHg) 0 Ω 33.3 kPa (333 mbar, 250 mmHg, 9.84 inHg) or more Ω YBR447 YBR448 SBR007A VACUUM HOSE BR-22 |