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Old 03-24-2013, 12:08 AM   #1
sstocker31
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'97 Contour overcharging....

I have the opposite problem of most here....the thing is overcharging 15.9-16.1 volts. Is that normal for these cars, I'm used to seeing about 13.5-14.3 volts.

I just replaced the battery, doing some maintenance for a neighbor,and discovered this after the install of the battery. If it's not normal, is there a separate voltage regulator, or is it internal to the alternator, and where abouts would I find the regulator.

Any help is appreciated.
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Old 03-24-2013, 12:47 AM   #2
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Re: '97 Contour overcharging....

It's definitely overcharging, as you suspect. The regulator is in the alternator, so you need a new or rebuilt alternator, or get a new regulator and install it yourself. Rockauto.com sells them for about $30 plus shipping.

Don't drive the car, not even for a little bit, until you get this done. An overcharged battery is hazardous.
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Old 03-24-2013, 10:18 AM   #3
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Re: '97 Contour overcharging....

Voltmeter or dash gauge? If voltmeter, check it again with another one. Had a voltmeter go bad and show 18v when charging. Took me a little time to figure out the voltmeter was bad.
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Old 03-25-2013, 12:04 AM   #4
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Re: '97 Contour overcharging....

Thats a good idea....I'll check it against my truck and the wifes suv to see if its working properly, Thanks

Thanks also for the info about the internal regulator, at least I won't have to go searching for it.
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Old 03-26-2013, 01:21 AM   #5
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Re: '97 Contour overcharging....

just to finish up... I checked my voltmeter on my truck and got 18V charging I sure didn't like that so I rummaged around in my tool box until I found my really old voltmeter (The kind with a scale) and it showed 13.5 V charging.
Went and bought a new voltmeter today and shitcanned the other one.

Thanks for making me check that voltmeter.
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Old 03-26-2013, 09:30 AM   #6
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Re: '97 Contour overcharging....

Like I posted, took me awhile to figure out mine was bad.
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