Where is the freeze plug on a 1981 Chevy Suburban?

The freeze plugs (also called core plugs) on a 1981 Chevy Suburban are located in several places on the engine block, depending on the engine type (small block or big block). There's no single location. They're typically found:

* At the back of the engine block: This is a common location for several freeze plugs.

* On the sides of the engine block: You'll likely find one or more on the sides, often near the oil pan.

To find them precisely:

1. Identify your engine: Knowing if you have a small-block (SBC) or big-block (BBC) V8 is crucial. The engine size (e.g., 350 cubic inches for a common SBC) will be visible on the engine itself, usually on a pad near the front.

2. Consult a repair manual: A repair manual specific to your 1981 Chevy Suburban and engine type is the best resource. These manuals will have diagrams showing the exact location of all the freeze plugs. Chilton and Haynes manuals are readily available.

3. Use online resources: Websites like YouTube may have videos showing freeze plug locations on similar engines. However, always double-check with your specific engine.

Caution: Be careful when working near freeze plugs, especially if you suspect a leak. They're under pressure when the engine is running, and coolant is hot. Always let the engine cool completely before working in that area.