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Battery or alternator ???????

Discussion in 'Engine/Tuning' started by 2001asp, Dec 14, 2011.

  1. 2001asp

    2001asp New Member Established Member

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    Hey guys, I was driving down the road and my cobra would not go onto boost. If I tried to push the throttle from any gear it would just want to stall. So I pulled over, kept the car running, and look under the hood thinking I may have l may have killed a belt. Belt was fine, so then I turned car off was thinking perhaps I needed to reset the computer...no joy. Then the car would not start after that. So then I called tow truck to come give a tow. When the toe truck arrived he helped me with a few things. We jumped the car and it seemed fine. After we removed the j-cables, it took 3 minutes and the interior gauges all crapped out and started to fail. Any thoughts
     
  2. 03cobraaa

    03cobraaa Member Established Member

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    I'd say an alternater. Theyre known to be bad on mustangs. To make sure I'd test it.
     
  3. joseph.devenney

    joseph.devenney How hard could it be Established Member

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    Alternator...have fun:thumbsup:
     
  4. 05satinGT

    05satinGT Tire Smoking Specialist Established Member

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    Def the alternator. Ford was nice and put it in a very convenient spot for you.
     
  5. 2001asp

    2001asp New Member Established Member

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    Turned out to be a bad alt. and bad battery.
     
  6. 2001asp

    2001asp New Member Established Member

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    So with a 2.76 pulley, do I need, or should I get an alt. pulley?
     
  7. joseph.devenney

    joseph.devenney How hard could it be Established Member

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    You should be fine w/o one if you went to ford and got an oem alt. If you went for the refurbished ones you'll be doing this again in a matter of weeks!
     
  8. 2001asp

    2001asp New Member Established Member

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    Oem ford alt....:)
     
  9. ruthless

    ruthless Turbo Terminator and TVS Terminator Vert Established Member

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    Just FYI...You only change the speed of the alt when the crank pulley is changed.
     
  10. Jimmysidecarr

    Jimmysidecarr Semi user friendly Established Member

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    This.

    The blower pulley size makes no difference to the alternator speed.

    I did put a Metco 3.2" alt pulley on mine when I did my alternator about 10,000 miles ago. My lower pulley is stock.
     
  11. Vibora 03

    Vibora 03 New Member Established Member

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    Go oem for sure I became a master at changing them out buying them from local parts stores..
     

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