The Idle drops when I come to a stop and the car just quits, But it starts rite up. I changed the plugs, wires, distributor & cap, problem still exist. Help Please

 

Is it only in drive or does it do it in park to.

 

Does it quit only it drive ? Is the car at normal temp?

 

It quits while in drive, put in park it starts back up. The gauge is at normal temp but the other day I did noticed the temp started to rise at the red light. Started driving went back to normal temp. I notice I have a coolant leak but it coming from around the back motor mount area.