1999 Cadillac Catera Q&A

1999 Cadillac Catera Question: Loosing coolant, not on ground under car.

I have recently had system flushed and pressure tested. No oil in water reservoir and no water in the oil. Uses coolant a lot faster with the A/C on. -
Answer 1
no tsb's on this,but there are some about alum heater cores and radiators. poss water pump leaking only while driving? -