Coolant overflow

Is there any white smoke from the exhaust? If it drops that fast, it is going somewhere and not evaporating.

Let me know.

Joe

Hi,

If there are no odors and nothing on the ground, check to make sure the carpet on the passenger side isn't wet. There could be a leak at the heater core.

Let me know.

Joe

Hi,

I have a thought and would like you to check something. Engine coolant performs best under pressure. That is why the system is pressurized. If you have a faulty radiator cap or there is corrosion around the filler that prevents the rubber gasket on the cap from properly sealing, two things will happen. First, you will see coolant go into the overflow under much less pressure and the coolant will have a much higher rate of evaporation.

So, and don't laugh, when the engine is at operating temperature, squeeze the upper radiator hose. It should be solid due to pressure. Let me know what you find with that first.

Next, remove the radiator cap and inspect the filler location for corrosion built up that would prevent the cap from fully seating.

If there is nothing causing a poor seal and the hose is somewhat soft at operating temperature, I recommend either having your cap pressure tested or just replace it.

It's a theory at this point, but in my mind, it makes sense because there is no evidence of a leak or a head gasket issue.

Let me know what you find or if you have questions.

Take care,

Joe

Hi,

First, you are very welcome, but we need to figure this out. Has the radiator cap been replaced, or pressure tested?

Let me know.

Joe

Hi,

It's a bit difficult to tell from the pic, but if there is coolant mixing with the oil, in most cases it is a head gasket.

I don't know when you are due for an oil change, but when you drain it, pay attention to see if there is more evidence.

Let me know what I can do to help.

Joe