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How do you check an electronic egr valve in a 97 cavalier?

1. Locate the EGR valve. The EGR valve is usually located on the side of the engine, near the exhaust manifold. It is a small, round device with a vacuum line attached to it.

2. Check the vacuum line. Make sure that the vacuum line is securely attached to the EGR valve and that there are no leaks. If the vacuum line is damaged or leaking, it can prevent the EGR valve from functioning properly.

3. Test the EGR valve. You can test the EGR valve by applying vacuum to it. To do this, you will need a vacuum pump or a hand-held vacuum tester. Apply vacuum to the EGR valve and see if it opens. If the EGR valve does not open, it is defective and will need to be replaced.

4. Check the EGR valve solenoid. The EGR valve solenoid is an electrical component that controls the EGR valve. It is located near the EGR valve and is usually connected to the engine's wiring harness. To test the EGR valve solenoid, you will need a multimeter. Set the multimeter to the ohms setting and test the resistance between the two terminals of the solenoid. The resistance should be between 10 and 20 ohms. If the resistance is outside of this range, the solenoid is defective and will need to be replaced.

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