You MUST determine which engine is in your Suburban before attempting to locate the sensor. Check your vehicle's documentation or the engine block itself for the engine displacement (5.7L or 7.4L).
Generally, on both engines, the CMP sensor is located on the passenger side of the engine, near the front. However:
* 5.7L V8: It's usually mounted on the front of the cylinder head, near the camshaft sprocket. It may be easier to access from the top.
* 7.4L V8: The location is similar to the 5.7L but might be slightly more difficult to access due to the larger engine.
To find it more precisely:
1. Consult a repair manual: A Haynes or Chilton repair manual specific to your 1997 Suburban will have diagrams and instructions for locating the CMP sensor. This is the most reliable method.
2. Use an online parts diagram: Many online auto parts stores (like AutoZone, Advance Auto Parts, etc.) allow you to select your vehicle's year, make, model, and engine, and then view diagrams showing the location of various parts, including sensors.
Caution: Before attempting any work on your vehicle, disconnect the negative battery terminal to prevent accidental short circuits. Be careful when working near hot engine components.
