All this is simply put on the table as a reference before I begin my story. Currently I have such a vehicle in for repairs and it’s been leaking engine oil much like a severed artery would leak blood.
The car has nearly 275,000 miles on the odometer. Should I be thankful for the work or should I be giving of my observations and opinions. What if my customer cannot afford expensive repairs or ultimately the replacement of this vehicle?
A decision must be made by an intelligent mature automobile owner. My job is to diagnose, estimate and inform them of what I’ve found. I must then turn the information and observations over to the owner for a final decision.
I haven’t seen this car for well over 30,000 miles. Although it had one of my lube reminders in its windshield it was thousands of miles overdue. The oil leak was so profuse it didn't justify a standard LOF. The habit of topping off the oil, but not changing the oil filter was being followed.
That sewing machine sound
Yesterday morning before repairs began I started the car to position it onto a hoist. As the motor sprang to life I was instantly reminded of my childhood and the sounds that a Singer sewing machine would generate.
I quickly turned the key off to check the oil level; it showed oil was a quart low. I again started the engine and although the noise was still there, it wasn't as loud as before and began to finally disappear as volumes of oil began coursing throughout the engine.
My diagnosis and comments
Was it Cavitation?