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OIL CONTROL VALVE (OCV) REMOVAL/INSTALLATION [MZI-3.7] 1. Disconnect the negative battery cable. 2. Remove the engine cover. (See ENGINE COVER REMOVAL/INSTALLATION [MZI-3.7].) 3. Remove the ventilation hose. (See QUICK RELEASE CONNECTOR (EMISSION SYSTEM) REMOVAL/INSTALLATION [MZI-3.7] .) 4. Disconnect the vacuum hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI- 3.7] .) 5. Remove the resonance chamber. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI- 3.7] .) 6. Remove the dynamic chamber and throttle body as a single unit. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [MZI-3.7] .) 7. Disconnect the wiring harness. 8. Remove the ignition coils. (See IGNITION COIL REMOVAL/INSTALLATION [MZI-3.7] .) 9. Remove the dipstick. 10. Remove the cylinder head cover. (See TIMING CHAIN REMOVAL/INSTALLATION [MZI-3.7].) 11. Remove the OCV. Tightening torque: 8.5-11.5 N.m {87-117 kgf.cm, 76-101 in.lbf} 12. Install in the reverse order of removal. Fig. 37: Identifying OCV & Bolt COMPRESSION INSPECTION [MZI-3.7] NOTE: The LH side is shown, however, the RH side is the same. WARNING: Hot engines and oil can cause severe burns. Turn off the engine and
2008 Mazda CX-9 Grand Touring 2008 ENGINE Mechanical (MZI-3.7) - Mazda CX-9
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