94 SL2 - dead battery - followed by rough running engine

Discussion in 'Saturn S-series' started by Eric Ried, Aug 14, 2003.

  1. Eric Ried

    Eric Ried Guest

    Hi all - interesting problem. My daughter's 94 SL2 has an issue - the car
    wouldn't start, and after finding a dead battery (a year old battery!),
    jumping it so get the car started, the engine runs fine for a time (a few
    minutes). While it is running the battery light is on, and then when the
    battery light goes out (after partially charging I'm assuming), the car
    begins to run very roughly, almost as if it is missing. Turning the car off
    yields another dead battery!

    Any ideas??

    Thanks - Eric
    Eric Ried, Aug 14, 2003
  2. Eric Ried

    BANDIT2941 Guest

    Sounds like your alternator is bad but the battery is in good shape. A good
    battery, after run down, will recover if you let it sit there. It may not
    recover enough to start the car(though in my case it did) but it will recover
    enough to run the car for awhile. So whats happening is when you get a jump,
    the battery is running the car for a few minutes. Once the battery starts
    running down lower and lower the car starts to run rough since there isn't
    enough juice to keep the plugs lit. When you let it sit for awhile then try it
    again it works again since the battery recovered some. Check the batt. with a
    voltmeter when the engine is running. I'm guessing you will only see 12 volts.
    If you do get 12 volts it means the alternator is bad like I'm betting on.
    BANDIT2941, Aug 14, 2003
  3. Eric Ried

    Ron Herfurth Guest

    Let me get this straight; You've had the car for 9 years (since 1994) and
    this is the first time your alternator has failed? And it failed in your
    drive way?
    Dang you're lucky.
    I've lost 2 so far on my 94 SL-1, both of them just a wisp out of the 3
    year/36,000 mile warranty; the first about 90 miles from home so between the
    tow truck, a night in a motel, and the alternator it was almost $500. The
    second failed in town. The current one only had a 1 year warranty but it's
    now just over 3 years old and I'm seriously thinking about replacing it
    before my next long road trip cause I KNOW, I JUST KNOW it's going to fail
    soon and at the worst possible time in the worst possible place.
    ron herfurth
    Ron Herfurth, Aug 14, 2003
  4. Eric Ried

    Eric Ried Guest

    Turned out to be the alternator as suggested by several posters. One tow
    and a new alternator, and now all is well in Saturn land. Thanks for the

    Eric Ried, Aug 15, 2003
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