Didn't hear from you guys for long time. I searched on net as there are some liquids available for cooling system flush/cleaning which are not that effective. Then I found a long solution posted by someone from <<GM DEALERSHIP>> to remove clogging in cooling system. He suggested 2 step process. He suggested *Prestone® Heavy Duty Cooling System Cleaner, GM P/N 12346500 - 1 per vehicle. This cleaner is in powder form and contains a neutralizer. Process "1" is to drain system coolent and mix this cleaner in water and fill radiator. Run your car for 3 hours and drain the system again. Step "2" After that mix neutralizer in water and fill radiator again and run engine for another 10 minutes maximum.
So please confirm if this will help for "Stop Leak Clogging Problem" also. Also remember I own 92 Acura not any GM vehicle.. Also suggest if there are any better solutions to remove stop leak clogging.

You can find the full solution on following link. I am breaking it in 2 lines as it was giving error when I try to give full link, so combine both lines below to make link. It seems to be old thread so I am not sure if this product is still available on GM dealership.


http://www.geocities.
com/b_gillie/TSB990602012.htm

Its kinda ghetto but easy, you can run new wires from your fan to a toggle in the car and then turn the fans on when ever you want and you can turn the car off if it does overheat and leav the fan on. I did that to my integra and never had a problem again. And another ghetto but efective tip is to put the whites from an egg in your radiator if its justa small leak and it will fix it without cloging anything.