Hoping someone can help me....'95 Contour GL with a Zetec....car was overheated....now it runs rough...missing on idle and acceleration....seems to get worse as it warms up...seems to be loosing coolant....nothing on the ground...

Had someone look at it and they said the plugs looked fine and didn't think it was a head gasket....don't trust his theory though...

Oil looks fine...seems like it may be pressurizing too much in the coolant reservoir though...also a lot of blowby when removing the oil cap....


Any troubleshooting i can do? what should I look for?

Thanks a lot,
John