1999 Chevrolet Venture "max air compressor building pressure" Questions

max do this in the morning as it will take a chage better if it's not hot, then crack open the valve on the can to allow enoungh freon to get the air out of the line of the can, this is very important

...air in the A/C system. The only way I have found to get rid of it is to discharge the entire system and then do a complete re-fill. This can be done using the fill tool sold with any commercial R134 ...