Radiator Problem or Cracked Head/Gasket?

Question

96 Cavalier 2.2 liter engine, just replaced water pump and thermostat.

When I come to a stop, the water comes back thru the reservoir/overflow.

When engine shut off, coolant pours out of overflow.

Answer 1

2.2 's had a problem with cracking the head.If the car is running and coolant bubbles back in the tank each time the cylinder comes upit is probably the head.Most of the time it won't even miss on the cylinder that is cracked.Head gaskets do blow but very rare on a 2.2.Good Luck

Answer 2

Much less cost to get it checked at radiator shop. Then you will know for sure.