Many modern cars are fit with a warning light that appears as "ALT" or in the shape of a battery; This occurs when the alternator begins to fail. If the battery is fully charged and the car still does not start, this is an indication of potential alternator failure. If a car does not have an alternator warning light, the lights on the dashboard and throughout the interior will dim. Power windows and power locks work more slowly than usual when the alternator begins to fail.
A visual check underneath the hood of the car can reveal loose wire or a faulty connection. Seek the opinion of a professional in order to be certain that the alternator is the faulty equipment. The alternator controls all of the electrical currents in your vehicle, so a car is not drivable without a functioning alternator.Learn more about Car Parts & Maintenance
If a car makes a squealing noise after the alternator has been replaced, it often needs the serpentine belt or belt tensioner replaced. Continuing to drive the car without repairing the problem often causes early failure of the replacement alternator due to a perpetually undercharged battery. Drivers should have a technician check both parts and replace what is necessary to correct the squeal.Full Answer >
One of the most notable symptoms of a bad alternator is a clicking noise that is heard when you attempt to start a vehicle. While this clicking noise may mean that the problem is just the battery, other details are needed to determine if the reason the vehicle is not starting is because the battery is dead, the battery cables are loose or the vehicle has a bad alternator.Full Answer >
The main symptom of a bad differential is noise. The differential may make noises, such as whining, howling, clunking and bearing noises. Vibration and oil leaking from the rear differential seal may also be signs of a failing differential.Full Answer >
Symptoms of a failing fuel pump include increased fuel consumption, gasoline odor in the vehicle, reduced engine power and acceleration, engine stops running during operation, car is hard to start or won't start, check engine light with a low fuel-pressure code and a whining noise from the gas tank.Full Answer >