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CHANGED BY EFFECTIVE DATE AFFECTED VIN 21 2433 EXHAUST SYSTEM D27DTP/D27DT (EU4) SM - 2006.08 D27DTP/D27DT (EU4) ENGINE FUEL I N T AKE EXHAUST PRE-HEA TING LUB COOLING SWITCHABLE ECU DIAGNOSIS 2. Disconnect the vacuum hoses (1, 2) from vacuum modulator. Removal and Installation 1. Disconnect the vacuum modulator connector. 2. REMOVAL AND INSTALLATION OF VACUUM MODULATOR Vacuum Flow Booster Vacuum pump Connected to VGT turbocharger actuator 1. Vacuum hose to VGT turbocharger 2. Vacuum hose to vacuum pump Switchable engine mounting solenoid (or IWE locking hub for P/T 4WD vehicle) To atmosphere Connector Vacuum pump VGT vacuum actuator Vacuum Modulator |