Should be at the bottom or rear of the radiator or remove the lower radiator hose
The petcock should be along the bottom edge of the radiator facing the engine. It is probably close to the bottom hose connector.
Clockwise = close Counter-clockwise = open.
I'm not sure of just the radiator capacity, but the total coolant capacity is 11.8 quarts for 1995 3.0.
The 1995 four runner radiator drain plug is at the passenger side of the radiator at the bottom. It is a petcock, so you only need to loosen it until the coolant starts to flow.
Lower right of the rad. sometimes it is easier to drain the rad by removing the lower rad hose.
Radiator? Plug? turn clockwise Petcock? Turn counterclockwise to close
On a 1995 Ford Aerostar : Follow the top radiator hose from the radiator ( I know on the 4.0 liter V6 the hose will connect to a metal pipe that is part of the thermostat housing that is bolted to the front of the engine ) The engine cooling thermostat is inside the housing
at the bottom of the radiator either side
I usually pull off one end of the lower hose if the radiator petcock is hard to get at or stuck; it is usually easier and it is much faster in most cases.
AnswerShould be on the bottom of the radiator. If you see none, then just remove the lower radiator hose.AnswerThe drain petcock should be on bottom, drivers-side of the radiator. It'll take a while to drain it through the petcock. Be sure to open the radiator cap to allow air into the system to help it go faster.Although it's likely to be messy as heck, I usually take a large drainpan and pop the lower radiator hose off.Please keep in mind, most if not all radiator petcocks are a left hand threadthere is a drain on lower left side of radiator. unscrew and drain.