I did a search for this but couldn't find what I need. 70 GT, noticed the ammeter light not lighting and alternator not charging when first started. Get down the road 3-4 miles, it 'kicks in" and starts working correctly. Pulled over today, pulled the plugs from the voltage regulator and alternator for a minute, replaced them, and all of sudden had a charge. When I shut the car off and restart it, no charge again. Voltage regulator going bad? Wires seem to be fine, and when it kicks in it charges. Alternator rebuilt about 2 years ago, replaced voltage regulator at that time. Any thoughts would be appreciated.