Download 2000 GMC Jimmy Intake Manifold Service Manual – INTAKE MANIFOLD REPLACEMENT – UPPER Important : The upper intake does not have to be removed to remove the lower intake manifold. 1. Disconnect the breather tube at the air cleaner outlet duct. Fig. 65: Breather Tube 2. Remove the air cleaner outlet duct retaining wingnut. Fig. 66: Air Cleaner Outlet Duct Retaining Wingnut 3. Disconnect the IAT sensor harness connector. 4. Remove the air cleaner outlet duct from the throttle body. 7. Disconnect the cruise control cable, if equipped from the throttle shaft and the accelerator cable bracket. 8. Disconnect the vacuum hose from the intake manifold for the vacuum tank. 9. Remove the power brake booster vacuum hose. 10. Disconnect the following electrical connectors: The A/C compressor clutch (1) The A/C compressor cutoff switch (5), if equipped The throttle position (TP) sensor (2) The idle air control (IAC) motor (3) 11. Disconnect the following electrical connectors: The fuel meter body assembly (1) The manifold absolute pressure (MAP) sensor (3) The EVAP canister purge solenoid valve (2) 12. Remove the engine wire harness clip from the accelerator cable bracket. 13. Move the engine wiring harness aside.