Mine did the same thing. The high side is leaking into the low side. I am in the process of replacing the compressor and hoping it fixes it. My parents Kia minivan is also doing the same thing. the seals are okay, but its an internal leak. it lowers back down to 40ish when you jump it since it just compresses it to the high side.
thats the best i can tell you, hopefully someone will be able to help you better. |