|
How many miles on the motor?
If a head gasket was fautly in the one spot between the coolant passage and the cylinder, it would not show in the oil. Water in the combustion chamber would produce a brilliantly clean spark plug.
- Water in the oil will produce a milky brown snot on the inside of the oil fill cap. A slow leaking intake manifold or head gasket (or head crack) would cause this. NAPA sells this really cool kit that tests for exhaust gas in the coolant to identify a head problem.
- Heater core. If they leak slow it is hard to realize that they are going until a nice sweet smell or a green puddle is on your floor.
- corroded freeze plug
-pinhole in a hose...
the list is long, but the problem can be tracked. A coolant leak only gets worse over time.
John
|