However, the MAP sensor is generally located in one of these places:
* On or near the intake manifold: This is the most common location. It's often bolted directly to the manifold or on a nearby bracket.
* On the throttle body: Less common, but possible on some models.
To find it definitively:
1. Locate your engine's specifications: Check your vehicle's documentation, the engine block itself, or an online resource to find the exact engine code and size.
2. Consult a repair manual: A Haynes or Chilton repair manual specific to your 1991 Chevy Blazer (and its engine) will show the exact location with a diagram. This is the most reliable method.
3. Use an online parts diagram: Some auto parts websites (like AutoZone, Advance Auto Parts, etc.) allow you to select your vehicle's year, make, model, and engine to view diagrams of parts, including the MAP sensor.
Without knowing the engine size, it's impossible to provide a precise location. Using the methods above will help you find it accurately.