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Author Topic: battery/alternator problems on a 1998 Ford Explorer  (Read 5249 times)

Randy

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battery/alternator problems on a 1998 Ford Explorer
« on: July 22, 2009, 06:07:05 PM »
From an email:
Quote
On my 98 explorer the battery light is on all the time unless the revs are over 3500 rpm. The battery is brand new, so I assume I need to change my alternator. So I went and got a multi meter and the battery is reading at 11.67 volts. So it is being charged. No matter what I rev it to or how loud I have the stereo at idle it stays at 11.67. But the battery light comes on below 3500 rpm, so something is not right somewhere. Is this something to worry about.
« Last Edit: July 23, 2009, 12:51:48 PM by drew »

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battery/alternator problems on a 1998 Ford Explorer
« on: July 22, 2009, 06:07:05 PM »

Randy

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Re: battery/alternator problems on a 1998 Ford Explorer
« Reply #1 on: July 22, 2009, 06:11:58 PM »
My response:
Quote
go to www.alternatorparts.com for repair parts or complete units. It sounds like you have a dead alternator. Your voltage should be between 13.5 and 14.7 volts. You can go as low as 12.6 and be slightly charging but if you turn anything on your voltage will drop.
You can go as high as 15.5 but get higher and you will blow bulbs and other things.
« Last Edit: July 23, 2009, 12:52:19 PM by drew »