Mazda Protege This compact model offers an economical solution for the need for a sporty sedan or wagon.

New Battery, Rebuilt Alternator, Still a Battery Light

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  #11  
Old 04-07-2023, 08:00 PM
thekiddrokk's Avatar
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Originally Posted by oldeng
Be careful: it's worth doing a good inspection/ cleanup of the main chassis ground plate that your battery negative cable is connected to, and the main engine ground on the passenger side engine mount. If either of those aren't well bonded, the alternator will be underloaded, and even with an intermittent ground, the no load alternator voltage will jump high enough to damage it.
Thanks dude I will do that in the morning after replacing a fuel line that blew above the gas tank
 
  #12  
Old 12-07-2023, 12:09 PM
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OK, Do as much as you can of the checklist I posted; they are very important.
 

Last edited by VictoriaFergusonn; 12-07-2023 at 12:39 PM.
  #13  
Old 12-07-2023, 01:13 PM
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Originally Posted by VictoriaFergusonn
OK, Do as much as you can of the checklist I posted; they are very important.
Where did you post this?
Maybe you meant to say off the information posted by other members on this thread?
 
  #14  
Old 08-24-2024, 01:24 PM
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Default 2000 mazda protege

Having same issues took mazda in had
alternator checked dead in the water but this is the second one this year. Daughter randomly bought it used in Feb. We're not sure of its history but I'm guessing not the best salvage title.
Anyway battery same now looking at new issue what is causing her alternator to burn out?
 
  #15  
Old 08-24-2024, 02:04 PM
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Originally Posted by Chrys
Having same issues took mazda in had
alternator checked dead in the water but this is the second one this year. Daughter randomly bought it used in Feb. We're not sure of its history but I'm guessing not the best salvage title.
Anyway battery same now looking at new issue what is causing her alternator to burn out?
Welcome to the forum

Generally it is better with service question to start your own thread for help. While it may seem that you have the same problem it is seldom the case to many variables. The one I see standing out is the *salvage title.
So maybe start your thread and a few of us can start a positive Q&A specifically for your Mazda.

Make sure when you do that you enter the vehicles information.

Year
exact model
miles
and any and all resent in the last 6 mo. service-related work done including what parts were replaced,

Also the estimated life of the battery?
And where and what brand are you getting alternators from as well new or rebuilt

So about the same information you would fill out at any service shop.

* salvage titles can hold key information about current running gear, drivetrain and chassis problems and concerns that can come up!


ASE
 
  #16  
Old 08-31-2024, 06:32 AM
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The alternator is controlled by the PCM/ECM.

I have seen PCM's go bad and fry the alternator & battery.
 
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