<<Sometimes: As in when driving and slaming on gas?>>

LOL!!!

<<...either to test my fix of squealing fan belt ....>>

Belt's either badly worn or too loose. BTW- new belts will usually have to be re-tightened after a few days or so, because the belt has stretched after initial installations. Just had to do it again on my daughter-in-law's (wife's former) Outback after replacing the belts.

If you need a new battery, I would suggest an Optima 'Red-Top', now available at Costco (or was it Sam's Club?) for a mere $99.00. Super battery- and it solves some of the charging circuit quirks of the SVX.

(Do a search for the 'Shotsky Fix')

-Mark