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Thread: Battery light flashes.....

  1. #1
    Join Date
    Apr 2021
    Location
    Buffalo/MN
    Posts
    4

    Battery light flashes.....

    I tried looking for an answer to this question and couldn't find one, so hopefully I'm not repeating posts....

    Every now and then while idling forward, especially if I'm crawling over a bump or on an incline, the battery light will flash for a split second. One time it actually dropped the RPMs enough to seem like it was going to die (like popping the clutch too quick in a manual), but didn't. Wondering if this is another "personality trait," or just a dying alternator, bad tensioner pully, worn out belt something affecting the charging system??? Thanks much

    DB

  2. #2
    Join Date
    Jun 2020
    Location
    Los Angeles County, CA
    Posts
    22
    You might want to get your alternator tested. My battery light started to flash recently (very short flashes) when I turned the headlights on. After having my mechanic test it, he found that the alternator was on its way out. What's the mileage on the car?
    2004 Mercury Marauder, Black
    2008 Crown Victoria P71, Silver
    2010 Crown Victoria P7B, Black
    2010 Crown Victoria P7B, White

  3. #3
    Join Date
    Aug 2011
    Location
    Wisconsin
    Posts
    4,137
    Do you have underdrive pulleys?

    WLB
    BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
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  4. #4
    Join Date
    Mar 2018
    Location
    Las Vegas nevada
    Age
    28
    Posts
    27
    Mine does that too for some reason it's all stock and I replaced alternator about a year ago but every now and then it does it sometimes when I turn the wheel all the way

    Sent from my SM-G970U using Tapatalk

  5. #5
    Join Date
    Jan 2004
    Location
    Somewhere in the N.C. Triangle
    Age
    65
    Posts
    26,040
    Check all your ground and positive connections. Check the cables for resistance. Not abnormal to have corrosion inside the cables.

    Get the alternator tested.
    “When you can’t make them see the light, make them feel the heat.”
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  6. #6
    Join Date
    Apr 2021
    Location
    Buffalo/MN
    Posts
    4
    81,000 miles on it. The belt is tight and not worn out. No add-ons anywhere, all stock. Maybe it is just a dying alternator. I suppose on the very low end, alternators go out around 80,000 mile aye?

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