I have taken off the radiator on my 95 z because I have noticed a small leak creating a puddle on my driveway. I know it is coming from the radiator and I know it is coming from the fins on the radiator. I now have my radiator on the work bench an have tryed to find the hole all night with water and air. Unfortunatly I can't wait til monday to get to a shop to get it tested so I need some ideas on trying to find this leak. I thinks I know in about 3 inches where it is but I need a little more clarification before I try to fix it. Any one have any ideas????

 

What they do at the shop is put low pressure air into the radiator and hold it under water to find where it bubbles.

 

I took your suggestion rob and got no air bubbles do you suppose it could be the ac condenser???

 

Was the puddly definitely anti-freeze? Most anything that is going to leak from the a/c system will be in gas form. Perhaps you might want to rent a pressure tester for the cooling system, so you can track the leak down. Most often, a small puddle is caused by leakage from the water pump weep hole. It may intermittently leak a little right after the car is parked and then when pressure drops, it stops.