discodorito

iTrader: (18)

So ive been trying to find out the cause of a coolant leak on my 92' fd. One warm summer day when i pulled in the driveway, coolant started spraying everywhere. I left the problem for a few months and am now completely lost. When i add coolant, it will immediately leak straight out the bottom of the car. Its not leaking from the overflow tank, or around the radiator and the upper coolant hose attachment is not cracked or leaking.

Anybody have a place i can look next? I was going to take off the front undertray to get a better look, but im still learning the ins and outs of the fd. Any advice appreciated!

HalifaxFD

iTrader: (18)

lower rad hose or rad drain plug

Vicoor

Remove the under tray and look for the leak.

Radiator, hoses, air separator tank, are all likely suspects

Keep in mind your car is more than 20 years old and anything could be wrong.

Whitetiger777

iTrader: (1)

Yup, taking off the under tray is easy and will probably show you the issue

gracer7-rx7

iTrader: (16)

Most auto parts stores have a radiator/coolant system pressure tester that you can attach to the filler neck on the thermostat housing to pressurize the system and expose any leaks. Easiest way to find a leak.

Tom93R1

iTrader: (2)

If you have the stock twins it's very common for the coolant lines behind them to just rot apart. They are small and hard to get to so are usually neglected until they completely fail.

ArmAnirx7

iTrader: (24)

If you don't want to go underneath the car, remove the intercooler and the duct and you will pretty much see all the hoses. You might need a flash light for some of the corners. Plus, this will give you chance to wipe down some of the parts and keep that engine bay clean!

Good luck.

discodorito

iTrader: (18)

Looks like its leaking directly from the radiator. Im guessing cracked rad core or end tank most likely

Vicoor

Time for an upgrade!

New Koyo radiator, aluminum AST, and some new hoses.

DaleClark

iTrader: (55)

Don't just GUESS, find the leak and fix it.

You will need to jack up the car and put it on jackstands and drop the belly pan to find the leak. A leak that big won't be hard to find.

Dale

JP's 93 fd

iTrader: (28)

Plus 1 on getting a coolant pressure tester. Makes it way easier to find the leak.

This link maybe helpful to locate the leak:
CoolingSystem