Especially the cause of automotive grief. Yesterday I was utterly convinced that my valley pipe had died, because of a coolant puddle on the ground aft of the engine; a typical symptom, and the 11 years / 143,000 + miles of service the car has given.
Removing the undertrays for inspection, it then seemed that the culprit was the water pump, further investigation revealed the coolant to emanate from a hole on the bottom hose where it had been chafing against a pipe.
Although the car had a new water pump about four years ago, it has covered about 60,000 miles since then, so I have ordered a new one, together with auxiliary belt, thermostat, and the immediately offending item. Hopefully all will arrive early next week, and normal service will resume within a day or so.
I will still replace the valley pipe as a precaution, at a more convenient time.
Last Edit: Sept 12, 2019 17:10:30 GMT by etypephil
Good detective work Phil, you've made a no so nice job into a palatable one. Remember I was convinced the Mini had a major coolant loss issue mos probably the head gasket, turned out to be a hose chaffing against the radiator surround. A simple fix once tracked down.