2006 Buick lacrosse is leaking antifreeze but not leaking outside car and plus when it sitting in park while idoling the temperature gauge rises up, can U please tell me what the problem wit ma car?

Ok I see, and I'm butting antifreeze in the car every day just about and to day white smoke was coming out from under the hood.

Why is my car using a lot of antifreeze I went and got a pressure test in there's nothing leaking

Please help me with this I have a 2006 Buick Lacrosse and I really have not had any major problems with it until it started leaking anti freeze and it was a water pump.got that reparied. Then my temperature gauage was going up another problem I put antifreeze in the car and it started leaking again this time . i saw steam coming behind the motor so I had it towed home to the mechanic shop . My car is still in the shop waiting to be repaired.

Same problem of my 05 Buick lacrosse CX , I replaced the water pump, new belt. Idk what can be. Had same smoke from anti freeze shooting out when I drive it. Wtf