Intermittent squealing from engine compartment..
Last Tuesday I had occasion to drive my car on a one-lane dirt road that was puddled and wet.
Later that day, I noticed an low-pitched squeal from the engine compartment. It only did so when the engine was under load, i.e. car in gear and moving.
I thought it was probably the tensioner for the serpentine belt; the car has 143K on it and it'* probably due. Checked the trans fluid, too, full to the top and doesn't smell burnt.
However, it has now gone away. Today I had my lady put the car in gear, hold the brake, and give it a little gas as I stood to the side-nothing. An exam with my mechanic'* stethoscope under the same conditions fails to reveal any untoward sounds from the tensioner or alternator.
So, about how often do they fail? And is this the likely cause of the noise, or did the serpentine belt just get wet and squeal until it dried out?
Thanks to all.
1999 SLE K engine