Mechanic stumped...now I'm stranded - Ford Powerstroke Diesel Forum
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Old 08-02-2013, 04:59 PM
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Mechanic stumped...now I'm stranded

Hello Gentlemen, I'm hoping you have some insight into my issue. Three mths ago my 2001 f250 7.3l with 130k started getting harder to start. Like the batteries were slowly draining from not being recharged by the alt. So, I changed both batteries and that helped for a week. Finally, I reLized the bolt that connects the alt to a fat wire was severely corroded so we put a new connector on. But the problem still persists. My mech hooked up his volt meter and he says everything looks good with the elec system. So it's still harder and harder to start till today it died and won't kick. Tried jumping it but nothing. So... Could it be the starter? Or a subtly bad alt?

Any clue?
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Old 08-02-2013, 05:05 PM
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What's it sound like when u turn the key
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Old 08-02-2013, 05:09 PM
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Turns over normally. Just real slow. But at different times it is faster. Sometimes it won't fire, I turn it off, then turn the key and it turns over faster. I don't get it.

Now it's dead.

No mas juice.
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Old 08-02-2013, 05:40 PM
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Did you try testing with a voltmeter? Let the truck run, put a voltmeter on one of the batteries. If the alt is good you should be around 14 volts
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Old 08-02-2013, 06:57 PM
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sounds like a voltage drop. and if u replaced a connector on a corroded wire mosed likely its in that cable and if the corrosion worked its way into cable. only way to figure out is to do voltage drop test.
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Old 08-02-2013, 07:04 PM
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If your Batteries tested good then my guess would be a bad starter.
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Old 08-02-2013, 07:05 PM
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I have it hooked up to a battery charger and it won't even turn over now. It just clicks once and that's it. Shows 65 percent charged.
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Old 08-02-2013, 08:06 PM
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Glow plug relay staying on and drawing current?
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Old 08-02-2013, 08:23 PM
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Voltage drop test very simple and free trowing parts not cheap.
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Old 08-02-2013, 08:23 PM
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can the engine rotate easy by hand? Lets start with the basics...
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