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EGR Control Solenoid: Testing and Inspection


EGR Vacuum Regulator Solenoid:






1. Disconnect battery ground cable.
2. Disconnect the vacuum hoses from the Exhaust Gas Recirculation (EGR) Vacuum Regulator Solenoid.
3. Lightly blow air into the EGR vacuum regulator solenoid and verify that air does not flow through the regulator.
4. Disconnect the electrical connector from the EGR vacuum regulator solenoid.
5. Apply battery voltage and a ground to the electrical connector of the EGR vacuum regulator solenoid.
6. Lightly blow air into the EGR vacuum regulator solenoid and verify that air does blow through the regulator.
7. If air does not flow through the regulator, replace the EGR vacuum regulator solenoid.
8. Connect battery ground cable.

NOTE: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur until the Powertrain Control Module (PCM) relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the adaptive strategy.