I have a 1992 Mustang and I am smelling burning coolant. what can be wrong?
You will need to check two things. One is the oil, the color should look normal, if it looks like chocolate milk, you have a head leak, or cracked head. You might also have a leak under the intake, leaking into the plenum. Last but not least check passenger floor board for wetness, might be a bad heater core. Local auto shop can run a pressure test, this will show where it is leaking if it an external leak (i.e. bad head gasket, bad hose, bad pump.)