Spilling engine coolant under the car and it's overheating

What is your question?

Hit something under the car. Car started overheating. Took to shop they did a flush and as I arrived home I heard a pop followed by a seeping sound. And looked back and seen a trail of the coolant, that was stretching down the road, that was recently put in.

What makes this problem better or worse?

Putting the coolant in works but it just spills right back out

How long has your 2004 Nissan Maxima had this problem?

About a week and a half