Alternator converts mechanical energy taken from engine to electrical energy. You can charge your battery with this electric current. All electric equipments use this current. Alternator failure leads to dying battery and halts working of all electric components.

Alternator starts working as you switch on the engine. It is connected via a belt to the engine. Automobiles until 1960s used dynamo generators. A poor alternator can destroy the battery.

Alternator Failure: Causes

A lot of defects can lead to alternator failure which are given below.

1. Defective Wiring

Many wires are connected to the alternator for power delivery. If one of these wires is defective or worn out the alternator could fail. It stops charging of battery.

Safety Measures

Regualr inspection of car wiring is mandatory. This will keep your car running properly.

2. Faulty Fuse

Fuse prevents from excessive current. It may damage due to surge in current or after use of a specific time period. A blown out fuse cuts the supply of current.

Current Supply Retrieval

Find the fuse connected to alternator and replace it. Keep in mind, the fuse should be of exact ratings for safety measures.

3. Broken Belt

Alternator takes power from the engine through a belt and pulley. This belt and pulley has a useful life after which it deteriorated. If the belt is broken alternator will not work.

Proactive Tips

Regularly inspect the belt and pulley. After a certain recommended interval replace it even working finely.

4. Alternator Failure: Lifespan Ended

It has a normal working life which is about 5 to 7 years or 80,000 to 150,000 miles. However, electric malfunctions may lead to early failure.

Safety Measures

Always check your vehicle wiring through a certified automobile electrician. Avoid unnecessary alterations in your electric systems.

Beneficial Learning: Engine Overheating Causes: What You Need to Know

5. Salt and Water Intrusion

Placement of alternator is under the engine in some vehicles. It comes in direct contact with water, salt and other environmental components. These ingredients disturb its overall efficiency and lifespan reduced.

Safety Measure

If your vehicle has alternator placement under the engine try to avoid passing through standing water. Use an alternate road. In this way, underside of the vehicle will be rust free and alternator will work perfectly for long time.

6. Vehicle Fluids or Oils in Contact with Alternator

Leaked engine oil, coolant, brake oil or power steering hydraulic fluid comes in contact with alternator. These fluids make their way inside alternator. It causes major problems as vandalizing diode plate and bearings.

Precautionary Measures

Regularly monitor engine oil and coolant level. Be aware of any leakage of steering fluid because it endangers life. While engine oil and coolant can make losses of money and vehicle. Treat your vehicle as your family member, it will give you safety in returns.

7. Too Much Tight Belt: Alternator Failure

Belt runs the alternator by connecting it to engine. If it is very tight, it damages alternator bearings. This leads to premature wear and tear. Not only alternator engine may also overheat.

Safety for Longevity

Always use right number and standard quality belt. If belt is as per recommendations but still its tight, the alternator may have displaced slightly.

Alternator Failure: Indications

• Difficulty in starting of your vehicle.
• Dashboard shows battery warning light.
• Dead battery is indication of alternator failure.
• Vague or excessively glaring lights.
• Screeching noises after starting engine.
• Burning rubber or wire smell.