whats wrong with it? tailshaft fell off my old car :P LOL

leaking coolant when its under pressure so basically its something I cant fix. I will have to take it to a shop to fix it because the leak is too far for me to get to it.

Any idea where its leaking from? my old car started leaking badly in the end, though everything was leaking haha, coolant oil power steering fluid, when it came to power steering fluid it was REALLY bad hahaha, i ended up putting normal oil in there (insert angry comments here) lol, and then it totally destroyed the steering rack :) but ya who cares tail shaft fell off anyway haha.

Anyhow, did you try any of those cheap ass additives stuff that suppose to stop leaks? sometimes they actully work:P
Worth trying before having to fork out loads of cash., check all radiator hoses and radiator? could be something simple like a split in one of the radiator hoses, or a crack in the plastic coolant container (if your car has one of those)

If it were the container or the hoses it would leak all the time, not just while under pressure. We know it is leaking but we cant actually see where it is leaking from. We already tried the additive to stop the leak, it didn't work. It's a pretty bad leak. It's probably a radiator issue but we can't get to it without taking the engine out, and I simply don't have the tools to do that. Because we cant see or get to the leak, I'm basically gonna have to spend a bunch of money to have to go fix it.

If it was the hoses it does not mean they have to leak while the engine is not running, could be a small split in the hose or perished ends of the hoses, which don't always leak unless under pressure, but you could be right with it been the radiator, not sure what type of car you got but it sucks you can't just take the radiator out to check it, its easy in the old ford, could also be you water pump, sorry i can't help you any further, drunk Meerkats are useless i know :( im sorry.

we found the leak...its not the pump we replaced that. Its actually behind the pump which means I get to take apart the engine saturday

oh, weird!, i had a pump go on me once, water sprayed out everywhere LOL!
good luck anyhow

i'm gonna need it