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Thread: Battery light flashes.....

  1. #1
    Join Date
    Apr 2021

    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


  2. #2
    Join Date
    Jun 2020
    Los Angeles County, CA
    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
    Do you have underdrive pulleys?

    BB#1) 1996 ImpalaSS - 16,500 miles - 100% stock
    ______________________________ ___________

    BB#2) 2003 Marauder (300a) - 34k miles - Daily Driver
    #2912 of 7093
    Conceived 8/6/2002
    Delivered 9/19/2002
    Adopted 8/10/2011
    Trilogy 242 - Self Installed 9/9/12 (0-60 5.5 sec)
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    Legacy 600w 6x9 Rears
    JL 6.5 SubWoofer
    K&N CAI
    Window tint 50% rear/35% front
    FBM CHMSL with Strobe mod 7/1/12
    DR Deep Aluminum Trans Pan
    Sparta FOMOCO Racing 8.8 Girdle
    Mo's Dyno Tune
    Gorilla Nuts - The System
    Ford Racing 4.10s, 31 spline Cobra carrier & axles 7/1/12
    Powder Coat Axle Housing 7/1/12
    CME HP Rear Control Arms & Watts Link 7/1/12
    ______________________________ ________________

    Rex "SC Cheesehead" Weinbender 11-14-13
    Ed "Baaad GN" Linthicum 8-6-2014

  4. #4
    Join Date
    Mar 2018
    Las Vegas nevada
    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
    Somewhere in the N.C. Triangle
    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.”
    Ronald Regan

    "The only way to deal with the Islamic State - these blood thirsty, blood-drunken, terrorists -
    is to kill them, keep on killing them, until you kill the last one, then you kill his pet goat."

    Lt. Colonel Ralph Peters

    “Be polite, be professional, but have a plan to kill everybody you meet.”
    "I come in peace. I didn't bring artillery. But I'm pleading with you, with tears in my eyes, if you **** with me, I'll kill you all"
    General James Mattis

  6. #6
    Join Date
    Apr 2021
    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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