I have a 97 blazer that isn't very cold. The A/C air is cooler than the outside temp, but wanted to top off the 134. Can someone save me some time by telling me where to look for the low pressure inlet is?

Thanks,
J

 

Should be passenger side right attached to the canister thing (cant remember what its called) coming out of the firewall. Its smaller in size than the other port and is the only one you can attach a recharge kit to.