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Alt or voltage reg?

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Old 06-23-2011, 12:32 PM
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Default Alt or voltage reg?

Started last night on the way home. Voltage gauge stays low (on the n in normal or slightly lower) battery reads 12v with truck off, on start up I'm getting 14v at Alt then after driving I'm getting 12 at Alt. About to replace Alt but if it's just the regulator that would save some buck
Old 06-23-2011, 12:53 PM
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94's have a separate regulator?

My Alternator puts out 14.7v.
Old 06-23-2011, 01:01 PM
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Sounds like its working great. 12 volts engine not running and 14+ volts when running..alt is good
Old 06-23-2011, 01:07 PM
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After I drive it drops down and the battery light flickers...
Old 06-23-2011, 01:08 PM
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Regulator is on the back of the Alt from what I've seen, not positive though and I saw it on the parts list when I looked up prices last night
Old 06-23-2011, 02:16 PM
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Thinkin a Diode's throwing in the towel.
Old 06-23-2011, 03:12 PM
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Meaning I need a new Alt aye?
Old 06-23-2011, 04:49 PM
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If ymeskie is correct about external regulator, unplug it and jumper the A+ to the F terminal, this should make the alt run at max. And you still need dancing lessons.
Old 06-24-2011, 08:31 AM
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Disconnect your positive battery terminal and tap it on the battery post with the truck off if it sparks up more than normal it' your regulator
Old 06-24-2011, 09:52 AM
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I already replaced the alternator. I figured it's three bolts and 5 minutes worth of work. Except I got it from autozone and it started squealing lol. At least it's got a lifetime warranty -sigh-


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