Easy lifehacks

What are the symptoms of a bad alternator in a Chevy Blazer?

What are the symptoms of a bad alternator in a Chevy Blazer?

Here are the most common symptoms of a bad alternator in a Chevy Blazer: The battery light is designed to tell you that there is not enough voltage to properly charge the battery, or that the battery itself is not holding the proper voltage. In rare occasions the service engine soon light may light up.

Can a low battery cause an alternator to go bad?

This means that if your battery is too low, you will be unable to start the vehicle and thus you will also be unable to test the alternator, rendering any additional voltmeter-testing totally useless. If the weather is cold or your battery is old, your battery could be the issue and your alternator might be just fine.

Do you need to check the battery first before checking the alternator?

Check the battery first. The battery is needed to start the vehicle, which, in turn spins the alternator at sufficient speed to keep the battery charged.

What happens when the alternator of a car is dead?

The alternator and the car’s battery work hand in hand. A good battery should give you service for the next five years before its lifespan ends. If your battery is dead, then it will not give power to the car’s alternator. The alternator normally lasts longer than the battery.

How do you plug an alternator back in?

Plug the electrical wiring connector back into the rear of the alternator by pushing the connector into the socket on the back of the alternator. Turn the belt tensioner counterclockwise again and slide the belt back over the alternator pulley. Release the tensioner so that the belt will tighten onto the alternator pulley.

Where is the negative battery on a Chevy Blazer?

Every time the crankshaft pulley turns, the alternator pulley also turns. Pull the 2000 Chevy Blazer into a safe working area and shut off the engine. Open the hood and locate the battery on the driver side front of the engine. Remove the negative battery cable from the battery with the adjustable wrench.

What happens when an alternator has an electrical problem?

After the engine starts (thanks to the high voltage provided by the battery), the alternator provides the electricity required to power the car’s many electrical functions, including the lights and radio, the spark, charging the battery, and others. What Happens When Your Car Has an Electrical Problem?

How does the alternator work on a Chevy Blazer?

The serpentine belt, which is run by the crankshaft pulley, controls the alternator itself. Every time the crankshaft pulley turns, the alternator pulley also turns. Pull the 2000 Chevy Blazer into a safe working area and shut off the engine. Open the hood and locate the battery on the driver side front of the engine.

After the engine starts (thanks to the high voltage provided by the battery), the alternator provides the electricity required to power the car’s many electrical functions, including the lights and radio, the spark, charging the battery, and others. What Happens When Your Car Has an Electrical Problem?

Every time the crankshaft pulley turns, the alternator pulley also turns. Pull the 2000 Chevy Blazer into a safe working area and shut off the engine. Open the hood and locate the battery on the driver side front of the engine. Remove the negative battery cable from the battery with the adjustable wrench.

Plug the electrical wiring connector back into the rear of the alternator by pushing the connector into the socket on the back of the alternator. Turn the belt tensioner counterclockwise again and slide the belt back over the alternator pulley. Release the tensioner so that the belt will tighten onto the alternator pulley.

What should I do if my alternator is not working?

The solution is to check your car’s manual for the particular fuse that controls the alternator and replace it. In some cars, you might also find another small fuse to the alternator’s control—usually a 15A to 20A fuse. An alternator does usually has 3 or 4 wires to it to function properly.

What should battery voltage be when alternator is not charging?

The alternator is connected to a set of belts which when loose can cause it not to function as required. To differentiate an alternator problem from the battery, you will need to use a voltmeter to check for voltage. First, turn off the engine and check the battery voltage. A fully charged battery should have a reading of 12.65 volts.

The solution is to check your car’s manual for the particular fuse that controls the alternator and replace it. In some cars, you might also find another small fuse to the alternator’s control—usually a 15A to 20A fuse. An alternator does usually has 3 or 4 wires to it to function properly.

The alternator and the car’s battery work hand in hand. A good battery should give you service for the next five years before its lifespan ends. If your battery is dead, then it will not give power to the car’s alternator. The alternator normally lasts longer than the battery.

The alternator is connected to a set of belts which when loose can cause it not to function as required. To differentiate an alternator problem from the battery, you will need to use a voltmeter to check for voltage. First, turn off the engine and check the battery voltage. A fully charged battery should have a reading of 12.65 volts.

What happens when the serpentine belt fails on an alternator?

The serpentine belt powers the alternator, and if it fails, the alternator will stop working the moment your belt wears out and breaks, or the pulley becomes damaged. This can also happen if the serpentine belt is not tightened correctly. Most cars have automatic tensioners, but these can fail, so it is better to double-check.

Author Image
Ruth Doyle