Joined
·
12,316 Posts
Idle it in one spot for 10-15 minutes. If nothing drips out, and no leak inside the car, gun it and watch the tailpipe for white smoke - which would be a failing head gasket.
Sometimes there's a tiny gasket leak at the water pump or thermostat and it drips slowly while you drive, but doesn't drip when sitting with engine off. Sometimes a loose hose clamp at the pump can leak like this, and ingest air right after you shut the engine off.
Is coolant dropping in both the radiator and the overflow jug? How does the oil look - milky?
Sometimes there's a tiny gasket leak at the water pump or thermostat and it drips slowly while you drive, but doesn't drip when sitting with engine off. Sometimes a loose hose clamp at the pump can leak like this, and ingest air right after you shut the engine off.
Is coolant dropping in both the radiator and the overflow jug? How does the oil look - milky?