Alternator test autozone

We can also give your car a complete starting and charging systems test. A belt connects the alternator and crankshaft pulley. While the engine is running, this spins the alternator rotor shaft, converting mechanical energy to electrical energy in the form of alternating current. I drove across the street to Advanced Auto and had them run a test and everything came back fine. There was no problems with the alternator or battery.

Wanting to get a third opinion, I went over to Pep Boys and got the same answer.

Got one months ago that said alternator was fine, did one yesterday that said it was bad. My trust in autozone is a little low. Still, using a few simple tests at home that show you how to test an alternator , how to inspect a battery, if necessary, and check a drive belt will help you pinpoint the cause of the problem.

Bad alternator symptoms: Dim lights. Use a voltmeter instead to conduct a simple, safe test. If it’s in the range, it’s good. Connect the meter leads to the battery terminals and look for 13.

Yes, Auto Zone, and most other automotive supply stores do test them.

But there are times other components and or connections that may be weak or bad that can cause a alternator to prematurely go bad because its over working its self. A poor or loose battery terminal connection will cause alternator to over work its self. It passed times with flying colors. I brought a alternator anyway. I might get rid of them soon.

Many times an alternator is not working properly because of poor electrical connections in the charging circuit. If the alternator isn’t putting out enough current to keep up with the electrical loads that are placed upon it, or the charging voltage is low, don’t automatically assume the starter or. Went got a test from autozone for my alternator ! When she ran the test she stated everything us normal bur read battery voltage is too low! Do ii need a new battery or alternator ? I trust little of what Autozone has to say, and generally find that doing the opposite is more accurate. The battery is brand new.

I decided to wait a few days to see what happens. I jump it and drive to autozone. Is anybody using an alternator from either of these two places? Cleaned the corroded connections, put the battery on the charger all night, and after minutes of the car running the Service charging system came back on.

Went to Autozone so they could test and see if its the battery or alternator.

Their tester said there wasnt enough battery voltage to test. So I replaced the battery. My alternator went bad in my blazer. AutoZone — new alternator having a dead short.

I had my car towed back to my house. My electrical meter showed the power terminal shorted to the casing. Take the alt off and have it bench teste advance auto and autozone can both bench test youre alt, I would assume oreilys and Napa can also. If alt tests ba replace it, have the replacement bench checked before you leave the store. Autozone says bad diode in the alternator So, I have had hard starting for a few days, so I went to my local Autozone and the battery checked out okay.

Checking the alternator , he said the output was fine, but his little checker said an internal diode was bad inside the alternator. It fails at Autozone because it's not from a Honda. I removed it from the vehicle and took it to Napa and they said it tests good. Alternator test in Autozone failed while in the car, but.

I called my usual mechanic and he said it could still test good and have an internal diode burned out. I measured the battery voltage when the car was off and it re. Do not only test your customer’s old alternator to verify it is ba but also test a new or remanufactured alternator before it goes out the door to verify it is good.

Misdiagnosis can lead to unnecessary replacement of a perfectly good starter as well. A bench test will tell you whether or.