Bad alternator regulator, 18v electrical shutting down? Help - Ford Powerstroke Diesel Forum

 
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post #1 of 9 Old 01-14-2012, 05:37 PM Thread Starter
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Bad alternator regulator, 18v electrical shutting down? Help

First off my truck since I got it I think had a bad alternator the lights would pulse, and today I went to start heading down the street my volts hit 18 and all the lights got brighter my puller gauges we're going crazy. And I went home immediately, is that the regulator going bad


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post #2 of 9 Old 01-14-2012, 05:50 PM Thread Starter
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Also my alternator is hot to the touch. Truck was only on for 4 min


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post #3 of 9 Old 01-14-2012, 05:51 PM
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I belive the regulator is built into the alternator unless you have a shop that rebuilds them you have to get a new one. I would take it off and run it up to a parts store to get it tested just to make shur. If its running 18V it could fry your PCM so I wouldn't move the truck.
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post #4 of 9 Old 01-14-2012, 06:26 PM Thread Starter
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So you think it is the regulator?


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post #5 of 9 Old 01-14-2012, 07:31 PM
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I'd say but get it tested a part store can tell you if its over powering eather way its gota come out.
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post #6 of 9 Old 01-14-2012, 07:32 PM
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The regulator is the one and only thing that would let the voltage get that high.
Fire, boiled batteries, are just a few of the problems that will result from overcharging.

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post #7 of 9 Old 01-14-2012, 10:59 PM
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Don't risk killing your electronics, replace the alternator before you run it again.

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post #8 of 9 Old 01-15-2012, 06:37 AM Thread Starter
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Just went to autozone got a new one for free, the guy before me put a duralast in it, I'm gunna get a good one if this one blows


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post #9 of 9 Old 01-15-2012, 06:38 AM Thread Starter
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Ohh and my old alternator failed both test,


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Early 99 201,000 miles. Extra spring up front leveled, 4 in turbo back to 6 in tip, 6637, glow shift gauges, dp tuner, kicker speakers, alpine head unit and amp, kicker sub, extang tonneau, bedliner bumpers grill, flares, and rockers, 33in toyo mt, 18in xd monsters, 05 Harley lights, recon tails and line of fire, 20% tint

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