spree17, you may be able to access the voltage regulator from above if you have very long arms. It's much easier from below (at least that's my preference). You could use the jack to raise the right front, remove the noise ecapsulation panel (if you still have one) and have at the voltage regulator. As mentioned, you most likely will need to jump start the car or recharge the battery with a charger. If it were me I would definitely replace the voltage regulator where the car sits, and skip the towing expense.

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Fred Hoelzle