Bottom pulley fell off, very cold, approx 5 degrees F., about a mile after leaving home with it.
Pulley fell off completely, bolt and washer are gone. It looks like the pin broke.We haven't fixed it yet.
Took 1997 Tacoma to AAA Service center to get cooling system replaced, radiator, hoses, flush, thermostat, belts. Learned I had a front crankcase seal leak. Had that replaced too. Next day all pulleys started to stop rotating. No power steering, brakes, fan. Took it back and they said nothing but a loose crankshaft pulley. Not to worry. The truck started to run badly and stall at stop lights.
I think there may be damage to some internal part of the engine.
engine making thumping noises then finally a hose fell off
Loss of charging and oil pressure, Both lights came on.