My SHO had an rpm related wining noise that I ignored for about two years. About two months ago I ordered a new belt and tensioner as I suspected this was causing the noise.
Yesterday I travelled out of town, 2 hours each way and on the way back, about 40 min from home, the battery warning came up... 10 minutes later the wipers started moving slowly... 10 minutes later nav screen went black... then I lost my electric steering... 2 minutes from home the ABS and traction warning light came on... Made it home but I was sweating all the way thinking the engine was going to die. Once parked in the garage I shut if off and attempted to re-start... zero, nada, battery dead.
Checked and the belt was gone, so as the tensioner. Replaced them last night, not to hard to do but access is limited, even after removing the piping going from the IC to the throttle body and the main coolant return line.
Here are the pics, don't postpone (too much) your repairs:
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Now that the wine is gone, I can hear a
ticking sound. I'll post another thread about that one.