2000 Pontiac Grand Prix Q&A
2000 Pontiac Grand Prix Question: My ac isn't putting out any cold air. I have already checked for a leak.
When it has a charge in it someone will have to try to find the leak with a sniffer that is used to find the leak, if that doesn't work dye will have to be added to the system, so the leak can be found with a black light. Special tools and equipment are needed for this, so it will most likely have to go in for diagnostics. - carbonvalley
the stop leak has contaminated the system but most likely your evaparator core is leaking inside heater box - globalhelper