It's not consistently in *exactly* the same spot across all production runs. To be certain, you need to:
1. Consult a repair manual: A Haynes or Chilton manual specific to your year and model Suburban will have a detailed diagram showing the location of all sensors. This is the most reliable method.
2. Use an online parts diagram: Websites selling auto parts (like AutoZone, Advance Auto Parts, etc.) often have searchable diagrams. Enter your vehicle's details, and you can view a diagram of the engine showing sensor locations.
3. Visually inspect: With the engine cool, carefully examine the area around the thermostat housing and cylinder head. Look for a sensor with one or two wires connected to it. It's usually a relatively small unit. Be cautious, as some parts of the engine will still be hot even after it's been off for a while.
Important Note: Before working on the engine, allow it to cool completely. Hot coolant can cause serious burns.
