What could cause the head lights on a 1992 Olds 88 Royale to suddenly turn off then back on if a shop says the alternator is good?
Answer Have you checked for a faulty ground. That could cause a problem with most electrical. If the system isn't grounded properly it won't work properly. …The best thing to do before getting things changed (alternator and battery) and costing you more money is to look for the simple things. Saves you time headaches and money. (MORE)