My 96 STS started crapping coolent like it was going out of style, so I took it into the shop. It was coming out from under the water pump, so I assumed it was just that. Wrong, as it turns out, GM doesn't runn coolent through the intake mani like most cars. Instead, they run crossover tubes between the block and the intake mani. Anyways, to replace those, you have to drop the motor, and seperate the motor from the tranny to get to 2 of the bolts on the tubes....I say screw that at a cost of $2900. I talk to a neighbor who was a mechanic at Cheverlet for 14 years and asked him about it. He had seen it time after time on Caddy and Auroras. He said, olot of times, they come in from auction like that and they drop in GM Cooling System Seal Tabs and the leaks stops then and there. I say no way in hell a leak this big will stop by some little disolvable tablets but what the hell at 5 bucks for 6 tablets. So I go to GM and get some, 2 packages worth, part # 1#3634621. I start the car, pop the radiator cap of and one by one, crush all 6 tabs up and put them into the coolent tank. TO MY FRICKIN AMAZEMENT, the leak stops...completly....within 1 minute. I say ok, but maybe for a day or two. Nope, that was a month ago...I wanted to make sure it would work before I post it. It may not last forever, but hell, works for now. First that Lucas oil additave stops all oil burning, and now some cheap tabs stop a massive coolent leak.....I am amazed. All I need now is some duct tape on this thing and it can truely be ghetto wrigged. 
Brett
Brett
