Welcome to Miller Brothers Auto Repair Shop and Collision Center, Corryton, TN!

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7123 Tazewell Pike

Corryton, TN 37721



(865) 689-5072

FAX: (865) 689-7765



Signs Of Auto Electrical Problems

Apr 24, 2023 | auto repair

auto electrical issues

auto electrical issuesAuto electric issues can frustrate drivers, especially if the battery does not seem to be at fault. The battery is the most likely culprit in older cars. Newer cars have an extensive and complex electrical system. The complexity of automotive technology makes it more likely that they will fail. While the majority of drivers find driving to be more comfortable and safe, this is not true for all. Modern cars are more dependent on their electrical system than older vehicles. When the alternator or battery fails, drivers can experience many problems.

Common Symptoms for Auto Electrical Issues

Electrical problems are easy to misdiagnose in any car. Here are some common electrical symptoms to look out for:

The engine doesn’t start correctly

To start the car, it needs electrical power. The battery ignites the fuel mixture inside the engine with a spark. A bad battery could be the cause of an engine that won’t start. It could be an alternator problem or something else.

A clicking sound is the most common indication of electrical problems within a vehicle. The clicking indicates that the electrical system of the car is not able to supply enough current for the engine to start. This usually means that the battery in the car has lost its charge, or it is nearing the end of its life. This could indicate a problem with the alternator or even the starter.

The car may make grinding noises when it starts up. This could be a problem with the starter, or the flywheel ring gear.

Electrical problems are more common in vehicles with high mileage. If the car seems to be having electrical issues on startup, you should have it checked by a qualified auto mechanic.

auto electrical issuesBattery Problems

The obvious problem is a dead or discharged battery. Do not just replace the battery in your vehicle without checking for other electrical problems. Batteries last for about five years. It may be time to replace it. Alternator problems could also be the cause.

Make sure the cables are connected correctly and check for corrosion. Consider taking the battery to a local auto repair shop for testing. If the auto repair shop determines that the battery is working properly, then the problem may lie elsewhere in the electrical system of the car. Next, check the alternator as well as other areas that are commonly problematic for your vehicle.

Headlights and other lights are not working properly

Lights are essential for the safe operation and maintenance of your car. Turn signals, headlights, and brake lights help drivers communicate and stay safe on the roads. Interior lights help drivers find things at night and in low-light conditions.

Drivers may notice their lights dimming if the electrical system of the vehicle is malfunctioning. Dimming lights are usually caused by low voltage in the system or a battery charging problem. But loose wires or an alternator belt that is malfunctioning could also be the cause.

Corrosion is another problem that can cause light problems in a vehicle. The electrical system of your car can be tested with a voltmeter by most reputable auto repair shops in Knoxville TN.

Blown Fuses

Fuse boxes prevent overvoltage and short circuits. Fuse boxes are designed to prevent overcurrent and short-circuiting of electrical components. Fuse blows for a variety of reasons. If the car’s fuses keep blowing, it could be a sign that the vehicle is experiencing electrical problems. A professional mechanic should be consulted if a fuse has to be replaced more than once within a short period of time. A short-circuit, or an electrical fault can cause further damage to your vehicle if you leave it unattended.

Burning Plastic Smell

Stop driving immediately if the car displays any of these electrical symptoms and emits a burning plastic smell or an electrical insulation burning smell. Tow the vehicle to an auto shop. If you continue to drive the vehicle, it will likely cause further damage. It could also result in injury if the vehicle stops working completely.

Diagnose electrical problems in cars

It can be difficult to diagnose electrical issues in modern cars. The car will need to be checked by a qualified technician. However, there are some things you can do to try to diagnose the problem before the inspection. Each circuit of the car must have a continuous power supply. Most electrical devices require a minimum voltage in order to function correctly.

Safety First

There is little danger of getting shocked when inspecting the electric system unless the car has a hybrid battery with high voltage. Ensure that the battery has been disconnected completely before working on the vehicle. If the driver doesn’t know the vehicle’s electrical system, they run the risk of doing more damage.

Avoid direct contact with the wiring and battery if the car is a hybrid to prevent shock. If the electrical problems are serious, you may also risk a fire when working to fix them.

What Can We Do to Help You?

Our combined experience in the automotive industry spans decades. We offer free estimates and are committed to providing quality customer service. We are concerned about the safety of our customers and understand how frustrating car problems can be. Bring your family car to our shop if it is experiencing electrical problems. We use the most advanced scanning technology, and voltmeters, and have highly trained car technicians.

Call Miller Brothers Transmission Auto Repair and Body Shop today to schedule an appointment and let our expert technicians deal with your car problems.

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Miller Brothers Transmission Auto Repair and Body Shop
7123 Tazewell Pike
Corryton, TN 37721
(865) 689-5072

Serving Knoxville, TN and Knox County

Service areas include: All of Knox County, Corryton, Fountain City, Halls Crossroads, Powell and Knoxville

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Monday-Friday 8:00am – 5:30pm

Saturday 8:00am – 12:30pm


Phone: (865) 689-5072

Email: millerbrothers06@comcast.net

Miller Brothers Auto Repair
7123 Tazewell Pike
Corryton, TN 37721