What is the freeze plug in a 90 Ford Tempo 2.3 liter?

The 1990 Ford Tempo 2.3L engine uses freeze plugs, also known as core plugs, which are located in the engine block. There isn't a single, easily described "freeze plug." There are multiple freeze plugs of varying sizes located in different areas of the engine block. Their purpose is to seal off the passages in the casting during manufacturing.

To determine which freeze plug is causing a problem, you'll need to:

* Identify the specific problem: Is there a leak? Which area of the engine is leaking?

* Consult a repair manual: A Chilton's or Haynes repair manual specific to a 1990 Ford Tempo with the 2.3L engine will show diagrams and locations of all the freeze plugs. This is crucial for accurate identification.

Without knowing the specific issue, it's impossible to pinpoint a single "the" freeze plug.