Your Voyager likely has an audible warning system that triggers for various reasons, including low oil pressure, but also low coolant, or other problems. The dinging is the *symptom*, low oil pressure is a *possible* cause.
Here's how to troubleshoot:
1. Check the Oil Level: This is the FIRST thing to do. Low oil is the most common cause of low oil pressure (and subsequent engine damage). Check your dipstick when the engine is OFF and cold.
2. Check the Oil Pressure Gauge: Does your Voyager have an oil pressure gauge (a needle that shows oil pressure)? If so, watch it when the engine is warm. A low reading would indicate a problem.
3. Locate the Oil Pressure Sensor: While the dinging isn't directly from this sensor, finding it might help a mechanic diagnose the issue. It's typically located on the engine block near the oil filter. Consult a repair manual specific to your 1995 Plymouth Voyager's engine (e.g., a 3.0L or 3.3L). A diagram will be invaluable.
4. Listen Carefully to the Dinging: Does it ding once, repeatedly, or in a pattern? The frequency and pattern might indicate the specific problem (though this is often difficult to decipher without a repair manual).
5. Check Other Fluids: Low coolant can also trigger warning systems. Check your coolant level in the overflow reservoir.
6. Consult a Repair Manual: A Haynes or Chilton repair manual for your specific vehicle will have diagrams showing the location of all sensors, including the oil pressure sensor, and provide troubleshooting guidance for warning lights and sounds.
7. OBD-II Scanner: A mechanic or auto parts store can use an OBD-II scanner to read any diagnostic trouble codes (DTCs) stored in your vehicle's computer. This can pinpoint the cause of the warning.
In short: The dinging noise is a warning, not the problem itself. Start with the simplest checks (oil level, coolant level) before worrying about the oil pressure sensor's location. Low oil pressure can cause serious engine damage, so don't delay addressing this issue.
