Definition: BARO Sensor Circuit Intermittent
Possible Causes:
- Faulty BARO sensor
- Damaged wiring or connectors in the BARO sensor circuit
- Vacuum leak in the intake manifold or vacuum lines
- PCM (Powertrain Control Module) failure
Symptoms:
- Check Engine Light illumination
- Reduced engine performance or rough idling
- Poor fuel economy
Solutions:
To diagnose and resolve the P1299 code in your 2000 Ford Expedition, follow these steps:
1. Inspect the BARO sensor: Locate the BARO sensor, which is usually mounted on the intake manifold or in the throttle body area. Check for any physical damage, corrosion, or loose connections. If you find any damage, replace the sensor.
2. Check the wiring and connectors: Inspect the wiring and connectors going to the BARO sensor for any damage, shorts, or loose connections. Repair or replace damaged components as needed.
3. Check for vacuum leaks: Check the intake manifold and vacuum lines for any leaks. A vacuum leak can cause incorrect BARO sensor readings. Repair any leaks that you find.
4. Test the BARO sensor: Use a multimeter to test the BARO sensor's resistance and voltage output. Compare the readings with the manufacturer's specifications. If the sensor is out of specifications, replace it.
5. Check the PCM: If all the above steps do not resolve the issue, the problem may be with the PCM. You may need to have the PCM tested and replaced if necessary.
It's important to note that diagnosing and fixing this code might require specialized tools and knowledge. If you're not comfortable troubleshooting and repairing automotive electrical systems, consider seeking the help of a professional mechanic.
