Question about 1992 Dodge Ram 250

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I just had a new alternator put in, hoses replaced. But now if I go anywhere (short of long distance) when turn off the engine, it won't start again for at least 1/2 hour. I checked the oil and antifreeze, both are fine.

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  • mike loshbough
    mike loshbough May 11, 2010

    have your crank sensor checked.



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Have the starter checked out. A faulty starter will mimic a bad battery or bad alternator in that it will start the car/truck fine when it's cold but when it gets hot, will act like there's no power. The lights horn,radio will work but won't start because the starter is hot and requires more power to function. Best of luck.

Posted on Jun 25, 2009


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The battery won't hold charge new battery

You put a new battery, now its acting like very low power again?
Most likely the alternator is bad. Maybe not putting out enough to recharge battery. Could have been the original problem.

Can be checked with a meter. Battery at rest should show 12 - 12.9 volts more or less.
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If you start engine and (after say 10 seconds) voltage stays same or drops, then the charger needs to be replaced. Thats the alternator. Shop around at different auto parts store. (Phone first)

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How to replace the thermostat on a 2002 chrysler concorde lx 2.7 engine size

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A seriously shorted alternator can do this too.
Try this:
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If the engine will now start and the wire you replaced doesn't fry again, the alternator is badly shorted and will have to be replaced.

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