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Guest Message by DevFuse
 

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Alternator voltage in my 92 loyale


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7 replies to this topic

#1 PennyMc

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Posted 10 October 2005 - 02:55 PM

my voltage spikes to about 17volts at about 4000rpm and up- is this normal?

#2 hatchsub

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Posted 10 October 2005 - 03:02 PM

It shouldn't be doing that. That means the alternator is overcharging which is not a good situation. You should get it replaced or if your not sure it needs to be, have a mechanic hook up a tester to it and make sure the gauge is reading correctly.

#3 PennyMc

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Posted 10 October 2005 - 03:04 PM

We used a mulit-meter and it is correct...the voltage goes up high when the rpm does....so it may not be as simple as a loose wire or something stupid like that?? Thank you

#4 torxxx

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Posted 10 October 2005 - 03:05 PM

well does it run like crap when its at 17 volts? if not, I wouldnt worry about it. If everything runs fine, your gauge might be messed up. Easy way to test it is get a voltmeter and put it on the charge wire comin off the alt. single wire with the ring on it I believe. hopefully somone will jump in to confirm


If it does start dogging down u need a new voltage regulator (alternator) because they are internal regulators

#5 TROGDOR!

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Posted 10 October 2005 - 03:14 PM

This is a common problem. The voltage regulator has died. It's internally regulated, so you need to replace the alternator. This WILL damage your electronics if you leave it alone.

#6 squatty

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Posted 10 October 2005 - 03:55 PM

Penny - Funny you should post this! I have been watching the voltmeter on my 92 Loyale as the same thing is happening to me!

On a 500 or so mile round trip last week I noticed my voltage getting up that high also. I wasn't sure it was a new occurence but believe it used to run around 15 or so.

#7 hatchsub

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Posted 10 October 2005 - 04:05 PM

Penny - Funny you should post this! I have been watching the voltmeter on my 92 Loyale as the same thing is happening to me!

On a 500 or so mile round trip last week I noticed my voltage getting up that high also. I wasn't sure it was a new occurence but believe it used to run around 15 or so.


Even 15 is high on the gauge. Mine...when it was running (currently has another crappy alternator) would be just about 12.5 volts.

#8 PennyMc

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Posted 10 October 2005 - 04:58 PM

Well I've already replaced the battery and put 2 new head lights in because of this problem....so off to the store to get a new alternator.....at the rate I'm going with repairs I'm going to have a brand new car by the end of the week...lol. as usual, thanks for all your help guys!!




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