Where is the temp sensor guage located on a 305 4bbl engine? year 84

Try on the driver side cylinder head near the #1 and #3 spark plugs....if not it might be on top of ur radiator hose neck on the intake manifold.

-Anduh

Where is the temp sensor guage ...
You mean the sensor for the temperature gauge, right? Look for a single green wire on the drivers side of the engine. It will lead to the sensor on the side of the head.