Before you begin:
* Consult your owner's manual: It may have specific instructions or diagrams for your exact model.
* Gather your tools: You'll need a socket wrench (likely a 10mm or 13mm, but check your vehicle), a ratchet, possibly a pry bar or small screwdriver, and a new speed sensor (make sure you get the correct one for your year and model).
* Safety first: Jack up the vehicle securely using jack stands, never rely solely on a jack. Disconnect the negative battery terminal to prevent accidental shorts. Wear safety glasses.
General Steps (differences between 2WD and 4WD will be noted):
1. Locate the speed sensor:
* 2WD: The speed sensor is typically located on the transmission, near the output shaft. You'll likely need to get under the vehicle to access it.
* 4WD: The location is less consistent. It could be on the transfer case or the transmission. You might need to consult a repair manual specific to your year and model Tahoe to pinpoint the location. Many 4WD Tahoes have the sensor on the transfer case, typically accessible from underneath.
2. Disconnect the electrical connector: Carefully unplug the electrical connector from the speed sensor. Take a picture before disconnecting to help remember how it goes back on.
3. Remove the sensor: This is where the biggest difference lies between models and even year variations within the 2000 model year. The sensor is usually held in place by a single bolt or sometimes it's clipped in. You might need to use a socket wrench to remove the bolt. If it's clipped in, a small flathead screwdriver or pry bar might be necessary, but be very careful not to damage the sensor or its surrounding parts.
4. Install the new sensor: Carefully install the new speed sensor, making sure it seats correctly. If there's a bolt, tighten it to the manufacturer's specified torque (consult a repair manual for this).
5. Reconnect the electrical connector: Plug the electrical connector back into the new sensor, ensuring a secure connection.
6. Lower the vehicle: Carefully lower the vehicle from the jack stands.
7. Test the sensor: Start your vehicle and check if the speedometer and other speed-dependent systems (like cruise control, ABS) are working correctly.
Important Considerations:
* Repair Manual: A repair manual specific to your 2000 Chevy Tahoe is highly recommended. It will provide detailed diagrams and instructions, significantly reducing the chance of errors.
* Fluid Leaks: Check for any fluid leaks after installing the sensor. If you see any leaks, you may have damaged a seal or improperly installed the sensor.
* ABS System: If you have issues with the anti-lock braking system (ABS) after replacing the sensor, you might need to have the system scanned for trouble codes. The speed sensor is a critical component of the ABS system.
Disclaimer: This information is for general guidance only. Improper repair can lead to damage to your vehicle. If you are not comfortable performing this repair, take your vehicle to a qualified mechanic.
