That doesn't mean the engine has a crack. If the vehicle is running good, drive it. As far as the coolant, tell your friend to keep an eye on it to make sure it stays full and check the engine oil to make sure it isn't mixing with the coolant. As far as the bubbling, there could be an air pocket or air in the cooling system.
I always say, if it isn't broke, don't fix it. If the car runs good and there are no signs of a problem, drive it.
Wednesday, February 6th, 2013 AT 2:17 PM