Electrical problems with your vehicle are both difficult to diagnose and difficult to repair for the average person. They may not be as common as mechanical problems, but when electrical issues plague your vehicle, they can be extremely difficult to pinpoint. Developing electrical problems likely won't be noticed until they cause a major failure in another component. Here are a few of the most common signs of electrical problems, which typically require the help of your trusted auto shop.
Failure to start
For any car owner, one of the worst things that can happen is to turn the key and nothing happen. When this occurs, it's likely because of a problem with your car's electrical system. Your first step is to check to see if any other electrical components are working in your car. Try to turn on the dome light. If it doesn't come on and your car doesn't start, your battery is probably dead. This means you need a jump, and likely a new battery. However, if the interior lights still work, the problem is usually with your alternator. If you turn the key and get a clicking sound, your starter may be the problem. For any of these issues, your best option is to have a professional mechanic investigate and diagnose the problem. This helps to avoid unnecessary repairs and spending on parts that don't need to be replaced.
Battery corrosion
This is one of the few ways to catch electrical issues as they develop and before they cause a major malfunction. There are many reasons why you'll want to regularly pop your car's hood. One of these is to inspect your battery. You'll be looking for corrosion stains, or buildup around the terminals. If you notice these, or other signs that your battery is damaged or leaking, the battery likely needs to be replaced soon. Be cautious when your battery is leaking or damaged since the substance leaking is corrosive acid that is harmful to bare skin.
Dimming headlights
Another common issue could signal a problem with your battery, alternator or voltage regulator. When you start the vehicle, your headlights and dashboard lights may all work normally, but if you notice that either of these dim while you drive or idle, it could signal electrical problems. Older batteries may begin to charge slower than usual, which could be causing the issue. It may also have trouble holding a charge, which means this issue could cause your car to not start soon. However, problems with the alternator and voltage regulator can have the same symptoms so don't jump to any conclusions.
Brake light failure
If the brake lights on your vehicle aren't working, your first step is to replace the bulbs just as you would any other lights that go out. If, after replacing the old bulbs, the brake lights still don't work, the problem could be related to a fuse. A bad fuse can cause the failure of a variety of electrical components, including the radio. Replacing fuses in your vehicle isn't terribly complicated, but being able to pinpoint the problem can be difficult.
When your BMW, Mercedes or Hummer H1 shows signs of problems like these, whether they're related to the electrical system or not, come see us at Benzin Motor Works located at 6960 E. 38th St. in Tulsa.