Alternator keeps going bad

Asked by Rena85 Oct 08, 2017 at 09:54 PM about the 1992 Mercury Grand Marquis LS Sedan RWD

Question type: Maintenance & Repair

I have a 92 mercury grand marquis and i
have changed the alternator 3x and it just
went out again what could this be. Please
help

6 Answers

F_O_R answered 7 years ago

Where do you buy your alternators? A lot of rebuilt alternators are junk in the box.

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Trippmeister answered 7 years ago

If you've been using quality alternators, maybe the battery has a short in it. How old is the battery, have it tested.. If you charge it overnight with a charger, the amps should go below 3 amps (well below). If not, the battery is shorted.

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