Having problems with your 1966 Ford Mustang ?
What could be causing my 1969 Mustang to have sudden, complete electrical failures. The car shuts off and I have no dome light or headlights...nothing ! I can usually get the car started back up in a few seconds. The last time this happened I could hear a ''click'' at the starter relay (wihile having no lights...etc...)
Am inclined to say loose battery terminal or battery cable at starter loose. Clicking noise produced by low voltage at soleniod and not enough to engage.Check positive and negative connectins at both ends.
Repair Help & Product Troubleshooting for 1966 Ford Mustang
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