What to do if Ford Focus alternator wont charge?
What to do if Ford Focus alternator wont charge? If you’ve already replaced the Ford Focus alternator and it still won’t charge, this post is for you. You’ll need a digital multimeter to do this test. They’re not expensive. There is NO other way to test the alternator (unless you own a scope). Do NOT disconnect the battery with the engine running. That is NOT a safe way to test the alternator. Why is my Ford Focus not charging properly? Keep in mind, with the charging system warning on the dash, there is a direct tie between the two components....