* Engine Coolant Temperature (ECT) Sensor: This is the most common sensor people ask about. It's usually located on the engine block, near the thermostat housing. It's a small sensor with a single wire connector. You'll likely need to consult a repair manual specific to your 2001 Monte Carlo's engine (3.4L V6 or 3.8L V6 are the common options) to pinpoint its exact location on your engine.
* Intake Air Temperature (IAT) Sensor: This sensor measures the temperature of the air entering the engine. Its location varies slightly depending on the engine and year, but it's typically found within the intake air duct or near the mass airflow sensor (MAF).
* Transmission Fluid Temperature Sensor (if applicable): This sensor, if your Monte Carlo has an automatic transmission, monitors transmission fluid temperature. Its location is within the transmission itself, requiring more advanced mechanical knowledge to access.
To find the specific location:
1. Consult a repair manual: A Haynes or Chilton repair manual for your specific year and model of Monte Carlo is your best bet. These manuals have diagrams showing the location of all sensors.
2. Use an online repair database: Websites like AllDataDIY or Mitchell 1 (subscription required) offer detailed diagrams and information on your vehicle.
3. Search online forums: Searching forums dedicated to Chevy Monte Carlos might yield pictures or descriptions from other owners who have worked on their sensor. Be sure to specify which sensor you're looking for.
Without knowing *which* temperature sensor you need to locate, it's impossible to give a precise answer. The engine coolant temperature sensor is the most likely candidate if you're experiencing a problem with your car's temperature gauge or cooling system.
