What Tools Do I Need To Change Out An Alternator On A 2006 Chevy Duramax
A bad alternator tin leave your Chevy Silverado without power and unable to move. Alternators don't always go bad in the exact same fashion. We'll embrace the symptoms of when an alternator goes bad, and how to diagnose a bad one (which is really pretty piece of cake).
How Your Silverado's Alternator Works
The alternator'southward job in your Silverado is to provide electricity as it is running. The bombardment stores enough voltage to exist able to showtime the engine without the help of an alternator.
Information technology is turned by a serpentine belt. It'due south worth noting that a bad serpentine belt can crusade the alternator to stop charging effectively. It's pretty easy to tell if one is bad. Information technology'll await dry rotted. If it's been slipping a lot information technology'll accept a sleeky shine to it. You'll have probably heard it squeal when you start the engine. They typically don't fail quietly.
Symptoms of a Bad Alternator: Chevy Silverado
About of the time, when replacing an alternator, the alternator itself is relatively affordable. It's the labor that makes the job expensive. Hither are the most common symptoms of a bad alternator in a Chevy Silverado:
Battery Light
The battery light is designed to tell you that there is not enough voltage to properly charge the battery, or that the bombardment itself is not holding the proper voltage.
In rare occasions the service engine soon light may light up. Also, some vehicles take an "alt" light that specifically tells you in that location is a problem with the charging system, and non the battery itself.
Dead Battery
Exterior of the battery warning light, a dead battery is the most mutual symptom of a bad alternator. As the alternator tin can no longer supply your Silverado with an acceptable power supply, information technology will begin to feed off of the reserve in the battery.
Once this bombardment reserve hits a sure level, the vehicle will begin to run erratically and will no longer commencement when the key is turned.
Often, the battery light volition come on, the alternator gets replaced, and then a few days afterward the vehicle dies. That's why it'due south important to test the battery earlier you just supersede it. Well-nigh any machine parts store volition test your bombardment for gratuitous to run into if it holds a accuse. The process tin sometimes take an 60 minutes or then, but information technology's worth information technology to know before throwing money into a bombardment that you lot do not demand.
Stalling Engine
As described to a higher place, a bad alternator will bleed your Silverado'south battery fast. When the battery gets and then dead it will no longer exist able to power your Silverado'south ignition system. As the ignition arrangement is no longer able to produce a full powered spark, the engine will begin to sputter and stall.
If you find yourself in a position where you suspect that your voltage is dropping, but you need to safely get off the highway, turn off everything that you mayhap can. Kill the radio, daytime running lights, air workout, heated seats, EVERYTHING. That will allow all of the limited voltage in the battery to go to the ignition arrangement.
Bearing Noises
If your Silverado's alternator starts to accept bearings that neglect, it'll begin to make some very obnoxious noises. If the serpentine belt has gone bad, it can brand some noises too, just it won't audio metal like the bearings going bad would.
Dim headlights
Dimming headlights are one of the almost common signs of a bad alternator in the Chevy Silverado. Dim headlights indicate that the alternator can't go on up with the energy request for the lights. Equally your Silverado begins to eat through the voltage stored in the battery, the headlights will begin to fade.
Electric Accessory Issues
Many accessories in a vehicle require quite a flake of voltage. Heated seats, the blower motor, ability windows, and even the radio volition work erratically or not work at all when the alternator is bad.
Chevy Silverado Bad Alternator Diagnosis
Some alternators go bad right away, and some slowly lose their ability to charge nether heavy loads. The ones that fail completely are easy to diagnose. The battery drains and you are stuck with a vehicle that goes nowhere.
The challenge is diagnosing an alternator that is merely not quite charging like it needs to be. You can easily diagnose it with almost whatever multimeter. Here's what to exercise.
- Become a multimeter. They are inexpensive (you can become a decent 1 for $10), and you can get them almost anywhere.
- Set it to read voltage. Specifically, you'll need to set it to 20V DC.
- With your Silverado turned off, you'll connect the negative side of the meter to the negative battery post or wire. Y'all'll then touch on the positive side of the voltmeter to the positive battery wire. With the engine off, you should go a reading somewhere betwixt 12.0 volts and 12.6 volts.
- Now that y'all have this baseline, information technology's fourth dimension to plough the engine on. Permit'south go ahead and get out the air conditioner off, as well as the headlights and whatever other accessories.
- With the engine but fired up, yous should get over 14.2 volts. If you got 14.two or more than volts, the alternator is charging fine. If it'south still showing in the 12'south, information technology's time to replace the alternator. If it's producing a voltage level in the 13's, go ahead and take it into a parts store and have it tested. It's probably bad.
- Now, bold that the alternator was producing over xiv volts, go ahead and turn on the headlights, air conditioner, radio, and any other accompaniment you can think of, and run the aforementioned test all once more. If the voltage dropped back into the 12's, it's a very strong indication that the alternator is bad. It'southward still worth having information technology tested, merely be prepared to supersede it.
Some other test you can practise that's not nearly equally scientific is to turn the headlights on and and so beginning the engine. They should get brighter after the engine starts, since the voltage is increasing by almost ii volts.
Now with the engine idling, rev it upward a piffling bit. Did the headlights get brighter equally you increase the RPM? This is a very stiff indication that the alternator has in fact gone bad.
This test depends a lot on you to discover very subtle differences in lighting. It should non exist used in substitute for checking the voltage as described straight higher up.
Conclusion
Over the life of any vehicle, the alternator is going to get bad. Good luck diagnosing the alternator in your Silverado. If in that location is anything that you would similar to add, please leave a annotate below.
Source: https://www.700r4transmissionhq.com/bad-alternator-symptoms-chevy-silverado/
Posted by: barnesweng1974.blogspot.com
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