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HELP: so yesterday got off work and went to the car its a 2000 mustang and it woulnt start got it to start it was fine and im driven but soon as i turn on my headlights or anything really i tryd them all when i got home but lights are the worst all the gauges start goin nuts and the car feels like its goin to die its a stick so at one point it did and all the lights were dim i checkd the baterry and starter and alternator there all fine .. I read a form about the theft light and when it gose off the key could be bad havent got a new key but if i dont turn the lights on everythings ok i really think i need a new battery even tho it tested fine and i gatta fix this plz help or email me thx

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It is possible that the battery has a dead cell. It will check OK and recharge but will not hold the charge very long

Posted on Apr 25, 2013

  • brandon brown Apr 25, 2013

    It could be a bad cell but its holding charge and tested fine and i was thinking battry also but i dont wanna replace inless its gannafix.forsure

  • brandon brown Apr 25, 2013

    It could be a bad cell but its holding charge and tested fine and i was thinking battry also but i dont wanna replace inless its gannafix.forsure thank you for some help



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Posted on Jan 02, 2017

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SOURCE: Alternator keeps going bad - three so far. Battery light flickering off/on now.

Having worked for an Isuzu dealer I have seen this a lot with aftermarket alternators from places like auto-zone, napa etc. For some reason they will do strange things in these vehicles. The fix was to get a Isuzu alternator. We did have good luck with Beck Arnly alternators also. We also had a local rebuilder repair some with good luck too. If all else fails get a used one.

Posted on May 05, 2009

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SOURCE: My 99 Expedition just died while driving. After

I has an 86 Mustang that did a similar thing and it turned out that the battery actually shorted out. This happens when one of the plates inside the battery brakes off and then touches another plate. When mine died it was like I turned the iginition off. It wouldn't turn over even with jumper cables.

Posted on Nov 04, 2009

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SOURCE: my battery gauge fluctuates when the rpms are high

check earth lead from battery witch runs to car body then to engine block sounds like a bad connection along this cable
hope this helps

Posted on Dec 10, 2009

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SOURCE: My check engine light is on and flashing & my car is shaking bad!

same thing happened on my 1996 Mercury Cougar XR7 4.6 V8,
i was driving an hit a pot hole then my car started shaking and i noticed a major loss in power also the check engine light came on and started flashing, took it to O'Reillys and had the codes read, misfire on Cylinder 4, replaced all 8 spark plugs and all 6 sparkplug wires and it ran fine!

total price of the parts: 58 USD

sorry this answer was a little late.....

Posted on Feb 19, 2010

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SOURCE: Car won't start - anti-theft light flashing

it sounds like the immobilizer is faulty. this will shut off the electrical feed to the starter motor. you will need to take it to a garage to get this fixed.

hope this helps.

Posted on Mar 18, 2009

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