Low Voltage????????????????????????

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Jul 24, 2012 | 11:41 AM

mwriggs

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Low Voltage????????????????????????

I put a new HD Voltage Regulator on my EGC last night as the volt gauge was pegged out, suggesting that the VR was bad. Now the gauge reads 12 volts straight up, no more no less, and I m getting a check engine light, and a battery light. The codes that pop up , are low voltage.........

Could it be the battery is worn out?

Could it be the Stator is going bad?

What are the symptoms of a bad stator?

Jul 24, 2012 | 11:47 AM

Sam2010

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From: Puyallup Wa.

I was told once by a old parts guy. That when a voltage reg. Goes out it can take out a good battery. I bet you need a new battery.

Jul 24, 2012 | 12:15 PM

grbrown

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From: Bedford UK

You need a multi-meter and to do a number of simple checks, like what's coming out of the alternator, regulator, etc. You can easily isolate what the problem is. There are some Stickies on checking your charging system here.

Jul 24, 2012 | 12:20 PM

frog13

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From: Wisconsin

Quote:

Originally Posted by grbrown

Can't diagnose from the volt gauge, probably is, but may not have been the regulator. Beginning to look like you are getting the 12 volts from the battery and no charging going on .... check the voltage on the battery at idle and then at 2500 RPMs, it should increase significantly. If not, pull the regulator and check the AC voltage from the alternator system. You will know right away what is bad ....

Last edited by frog13; Jul 24, 2012 at 12:23 PM.

Jul 25, 2012 | 09:58 AM

mwriggs

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While running, the volts coming from the battery were less than 12 , so I am going to get a stator and put it in. No charging going on at all.......

Jul 25, 2012 | 10:07 AM

smithbrl

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From: Denham Springs, La

You may want to check input to the regulator, still. The new regulator may be bad also. Not probable but possible.

Jul 25, 2012 | 10:19 AM

grbrown

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From: Bedford UK

Quote:

Originally Posted by mwriggs

While running, the volts coming from the battery were less than 12 , so I am going to get a stator and put it in. No charging going on at all.......

What did you measure that voltage with? The voltmeter on your bike is not suitable for doing checks. Have you done a detailed check, as per the link I posted? Don't go replacing stuff if you are not confident it needs replacement.