2nd Gen Non-Engine/Transmission Air Conditioning Issues

[Turbo Tim 1]

OK so my A/C works fine when driving around town but when I get out on the highway it starts blowing warm air. It did this the other day so I got me one of those recharge bottles at wally world and the gauge said it was a little low. Ended up putting the whole bottle in and it was just to the normal mark. Anyone got some good ideas for me. I don't want to just poke another bottle into the system.

 

[mediccummin]

Coolent might be low still, or you could have a problem with your blend door actuator. Mine did the same thing, got the actuator changed and worked OK, but they never filled the coolant, I added coolant and it is chilling now.