If a buzzing noise is coming from the exhaust at different engine speeds and conditions, this is commonly caused by the heat shields on catalytic converters coming loose at points. The buzzing is the metal on metal contact. Installing a large worm clamp around the catalytic converter and heat shield assembly will prevent the noise and secure the shields.
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Most reported 1997 Ford Probe problems
Water corroding the head light actuator connector can cause the head lights to open and close on their own, or operate erratically. Replacing the head light actuator motor should fix this problem.