could be a locked up compresser or clutch
134a
R134a
134A
134a freon about 3 lbs max
This happened on my 02 Grand Prix. There is a switch that needs to be replaced, be prepared to pay about 200 bucks
R134a
Grand Prix
on a 2001 grand prix the low pressure value to add freon is on the back of motor close to the firewall . if u look straight to the firewall there is a loop and black cap. there is where u connect the hose. and the high pressure line is underneath the airintake box that has black cap.
motor grand prix
R134a. R-12 "freon" was discontinued years ago.
You would have to do a full conversion to Fuel Injected. This means that you would have to replace the head.
You can add Freon to your 2005 Pontiac Grand Prix air conditioning system through the low pressure port. The low pressure port can be found on the air conditioner compressor.