The A/C uses R-134A refrigerant.
On the lower driver side of the radiator!
Pontiac Trans Sport was created in 1990.
that would be in the overflow reservoir follow the hose under the rad cap and you will see it
TAke it to a garage and have someone look at it. The cooler for the trans may have ruptured and is leaking fluid in the rad and coolant in the trans.
It's concealed in the roof
185 hp
first check your coolant level. then check to see if you have a leak, then check to see if you cooling fans are coming on then check if your thermostat is working.
The horn is under the left head light .
under the floor mat on the passenger side
If an automatic transmission ,broken bands in the tranny.
Wiring for 91 Pontiac Transport: http://www.auto-olds.ru/PONTIAC%20TRANS%20SPORT%201991.pdf
The 2001 Pontiac Trans Am air conditioning drain hose begins at the bottom of the air conditioner compressor. The drain hose will route evaporation to the bottom of the engine compartment.