Sounds like bad head gasket.
If your exhaust is getting in your coolant, you have a reeeeeeeeeeeeaaaaaaaaaaaaaaaaallllllllllllllllllyyyyyyyyyyyy major malfunction.
If you are only leaking coolant into the exhaust and use the type with copper in it, then yes, it should stop the leak. If coolant is getting into the oil or exhaust is getting into the radiator then no, none of them will do any good.
Coolant getting into the fuel or oil.
headgasket leak and exhaust gas is getting into the coolant
Sounds like engine coolant is getting into an engine cylinder
You need a head or intake gasket. Coolant is getting into engine. Head more likely.
White smoke out of the exhaust means that there is coolant getting into the combustion chamber. Usually due to a bad head gasket.
Are you getting white smoke from the exhaust even with the engine warmed up ? If so , you are getting engine coolant into an engine cylinder from a bad head gasket , a warped or cracked cylinder head
Sounds like you are getting coolant into a cylinder , is your coolant level dropping ? Could be a bad head gasket , warped or cracked head
Is white smoke coming out of the exhaust? Is the oil milky? If so then you could have a blown head gasket. You can also check by getting an exhaust gas checker at Autozone to see if there is exhaust in your coolant. HTH.
Probably a blown head gasket make sure none of it is getting into your oil.
A blown head gasket could allow coolant to enter the combustion chamber from the water jacket. The coolant probably is running out the exhaust on first start-up. More often, you will notice the coolant being pumped out of the overflow as the exhaust gas pressurizes the coolant. You should look for this symptom when the engine warms up. Coolant in the exhaust on start-up and then the coolant overpressure overflow from the expansion tank or radiator happening together is almost sure indication of the head gasket failure.