1990 Chevrolet Corsica Q&A
1990 Chevrolet Corsica Question: should I return the the new altenator?
Usually the auto parts store has a alternator test machine but its not uncommon for a rebuilt alternator to be defective right out of the box, If they have a test machine have them but it on there and see if its bad. - hemicuda
Also check all of the wires and connectors for damage. Make sure the grounds are secure as well. Is the battery fully charged? - Andy Y