Question about 1992 Mitsubishi Diamante

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Diamante keeps dieing

As im driving down the road the car will just die do to lack of electricity.. The battery is brand new. I took it into the garage i work at and tested the alternator and it was kicking out 14.35. So i took it home and on the way it died wonce again from lack of power. Ive looked for falty wiring and stuff but cant find anything. Just wondering what it could be or if anyone else has had the same problem?

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  • packerfanbm Feb 01, 2009

    yeah.. the car looses absolutly all power. i turn head off. unplug the radeo and everything. it still dieds. im thinking faulty wiring but i dont know anymore

  • packerfanbm Feb 01, 2009

    Basicaly it slowly losses power til it doesnt have any to run on anymore. i can turn pretty much all electrical off and it will still do it. And the battery is good because i had it in my truck for about 2 months and never had a problem.

  • packerfanbm Feb 06, 2009

    eh.. its all good.. and thanks for the help! i will defenetly check out both of those things.

  • coss985 May 11, 2010

    I apoligze for so many questions but let me try one more time. I am trying to understand if in fact your battery is dead or you are just not getting the power it has to the system. So if you have this trouble and you are parked on the side of the road trying to decide if you should just take the plates and walk home (just joking)if you turn on your flashers will they work? Or willl the horn blow? If the answer to that is, no everything is deader than a doorknob then your alternator may be working but your voltage regulator is not letting the juice go thru. I suspect you will say that the flashers or some other thing that requires electricy does work then your problem is in the ignition system and it is time to take it to the nearest service station or roll it over a cliff!! Actually Ihave had a few Diamantes and I love the car. Let me know, and again I apoligze I wasn't able to pinpoint the exact problem

  • coss985 May 11, 2010

    OK,
    Does it sputter and cough like it is out of gas? Does it just stop running and u lose all power ( like if u  left ur lights on would they stay on) have you thought about just leaving it on the side of the road  Just Joking. What was ur answer on the load tests on the batteries?

  • coss985 May 11, 2010

    What makes you sure it is dieing from "lack of electricty". If it really is out of juice it is more than likely a dead cell in your battery. Bring it back where you got it and have them do two "load" tests one after another. The test simulates putting the batter under a heavy load and if there is a dead cell it usually shows up. The reason I like to have them do two is that I have seen a dead cell look A-OK after the first test and fail miserably after test two. I am curious however because if in fact you say the alternator is putting out 14+ volts that should run the car if you turn off everything you can. Keep me informed

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Unfortunately you may have to take the veh. back to the dealer to have the veh's computer re-inialized, whats happening is the veh's immobilizer system ( anti- theft system ) is not allowing you to drive the veh, this is especially true if you have recently replaced any electronic components or disconnected the battery for a period of time, the device the dealer uses is called an " M.U.T.-lll " ( multi- use tester ) you can let the dealer do the procedure or you can rent the tool from mitsubishi and do it yourself, you can go to " mitsubishitechinfo.com " for more details Good luck

Posted on Apr 30, 2009

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