Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2001 Mercury Villager BaseFACTORY OEM SERVICE PROCEDURE
Sending Units & Sensors
SENDING UNITS & SENSORS LOCATION
| Component | Location |
|---|---|
| Ambient Air Temperature Sensor | On front center of engine compartment. See Figure. |
| Autolight Sensor | On top right side of dash, near windshield. See Figure. |
| Camshaft Position (CMP) Sensor | Inside of distributor. |
| Coolant Temperature Sensor No. 1 | On top center rear of engine. |
| Coolant Temperature Sensor No. 2 | On right rear side of engine. |
| Crankshaft Position (CKP) Sensor | Under intake, in front of transaxle, near flywheel. See Figure. |
| Engine Coolant Temperature (ECT) Sensor | On left rear of engine. See Figure. |
| EVAP Pressure Sensor | Under center rear of vehicle. |
| Heated Oxygen Sensor (HO2S) (Front) | Left rear of engine, in exhaust. See Figure. |
| Heated Oxygen Sensor (HO2S) (Rear) | Underneath vehicle, near center of vehicle. |
| Intake Air Temperature (IAT) Sensor | On front left corner of engine compartment. See Figure. |
| In-Vehicle Temperature Sensor | Behind center of dash. See Figure. |
| Knock Sensor (KS) | On top center rear of engine. See Figure. |
| Manifold Absolute Pressure (MAP)/Barometric Pressure (BARO) Sensor | On left rear of engine compartment. See Figure. |
| Mass Airflow (MAF) Sensor | On left side of engine compartment. See Figure. |
| Outside Air Temperature Sensor | Behind center of front bumper. See Figure. |
| Sunload Sensor | On top left side of dash. See Figure. |
| Throttle Position (TP) Sensor | On throttle body assembly. See Figure. |
| Transaxle Solenoid Assembly/Transaxle Fluid Temperature Sensor | Inside transaxle. See Figure. |
| Transmission Range (TR) Sensor | On top front of transaxle, below battery. See Figure. |
| Vehicle Speed Sensor (VSS) | On right side of transaxle. |
| Wheel Speed Sensor (Left Front) | On left front wheel assembly. See Figure. |
| Wheel Speed Sensor (Right Front) | On right front wheel assembly. See Figure. |
| Wheel Speed Sensors (Rear) | On each respective rear wheel assembly. |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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