As soon as you pop the hood, it should be to the left of the engine. it is visible from top view.
1991 Corsica its under the trottle body
if its a manual transmission its attached to the clutch pedal housing if its an automatic its the shifter
its behind the coil packs on the back of block
For a 1991 Chevrolet Corsica : My Chilton's Auto Repair Manual shows : ( 15.6 U.S. gallons )
It doesn't have one, it is distributorless.
13.6 gallons
were is a ALTERNATOR
Green coolant (prestone, etc)
You have to take the door apart
Depends on which engine it has. Try a Google Search.
16.5 to 17.1 gal
The idle air control valve is located on the throttle body, and the EGR valve is located on the intake manifold.