If your at the front of the car looking at the engine the drain plug is located on the lower right side of the radiator on the side facing the engine. The plug is a white plastic wing nut like screw. Just as a warning it is a huge pain to loosen the plug because it's awkward location doesn't allow your hand to torque the screw much.
The automatic transmission oil cooler is built into the radiator. If the oil cooler developes a leak the oil mixes with the engine coolant.
If it is an automatic transmission, the cooler in the radiator is most likely leaking into the coolant system.
your coolant tank should be on the pass. side inner fender
Looking from the front the automatic transaxle fluid dipstick is just to the left of the engine coolant reservoir
No. Transmission fluid lubricates the transmission. Coolant is used by the radiator to cool the engine.
FIRST IT DEPENDS ON THE SIZE OF THE ENGINE AS TO CAPCITY OF COOLANT. THE SR20DE MOTOR HOLDS 6.5 QTS OF COOLANT. THE GA16DE MOTOR HOLDS 5.5 QTS IF IT HAS A MANUAL TRANSMISSION AND 6.0 QTS FOR THE AUTOMATIC TRANSMISSION.
"Engine coolant temperature" sensor
Yes, but you have to remove the automatic transmission housing, and you have to replace the Torque Converter with a standard transmission clutch that matches the type of transmission with which you are mating the engine.
Toyota has developed a new automatic transmission, called the A341E. This transmission employs a unique engine and transmission integrated intelligent control system named "ECT-i", and a high performance "Super Flow" Torque Converter. It can also be the abbreviation for the engine coolant temperature sensor.
Most have input and output hose do coolant can enter and circulate through radiator and then be returned to the engine. Automatic transmission also has 2 smaller lines running to and from the radiator to the transmission for cooling purposes
Removing the transmission on a 1998 Honda Civic takes time as it engine will need to be remove as well. The engine mounts will need to be removed, coolant drained, hoses removed and shift linkage removed. When everything is properly loosened, using an engine hoist, lift the motor out. Disconnect the transmission from the engine and replace the unit.
That would be a 4L80E automatic transmission.