Now you have a problem. Did you check the head for cracks? Is it the same head? Is the block cracked? Do you have any white smoke at the exhaust? Try a pressure check on the cooling system to try and see where the damage is. Did the engine overheat?
Did you reset the light? I don't know what gasket you changed, but undoubtedly that was not the problem. The check engine light comes on when there is a problem with the emissions system.
No the engine is not ruined. It needs a new head gasket and an oil change after the gasket been changed.
It's probably a head gasket problem.
if its a 3.1v6,then it is a intake manifold gasket problem, the 3.1 a noted for this!! check to see if gasket is bad.
It might be a broken gasket.
I would say yes, if oil has mixed with the coolant, that's the most probable cause.
The head gasket sits between the head and the engine block if it is leaking out where you can see the coolant, yes you can smell the coolant if it is leaking into the engine no you cannot smell the coolant. You can check the oil to see if it has coolant in the oil if it does then the head gasket might be blown.
Neither 1, It is a common problem with that engine for the intake gasket to leak engine coolant into the engine lifter gallery / into engine oil. Replace intake manifold gasket and change oil and FILTER a couple of times. A head gasket or cracked head will not allow engine coolant to get into the oil. If you got or over HEATED the engine like real hot then you may have blown are cracked a head but I doute it. Not common, Replace intake gasket and you'll see that the engine will be okay more then likely.
The most common cause of a blown head gasket is an over heating engine. Low coolant or coolant not circulating through the engine causes the engine to heat up and the gasket to fail.
It is possible for engine oil to float on engine coolant. This occurs when there is a leaking or blown gasket.
I just had my intake gasket changed on my 99 Monte Carlo for the same thing. My cousin is a mechanic and has changed the same gasket on several cars with the 3.1 engine. The gasket is about $60 - $75 plus labor.
I have a 1991 190e 4 cylinder with the same problem - in cold weather the engine does not warm up. I know that I have a head gasket leak due to oil in coolant. I changed the thermostat but no improvement. I suspect the head gasket leak somehow affects the working of the thermostat or circulation of the coolant.