Battery Light Still On After New Alt/Batt

mcleaves · #1 08-20-2008, 12:28 PM

Hi Everyone..

First time poster.

I just installed a new alternator and battery in my ''''04 Expedition 5.4L. Alt went belly up all of sudden yesterday afternoon. Battery was original so I replaced that also. The problem is the battery light is still on although the gauge (which is rather useless) reads just above 1/2 way. I get 14.3v at the battery with a voltmeter while running so everything seems good on the charging side. I actually ran a couple hours worth of "poor mans" load tests last night with lights ac blowers etc and the voltage stayed at 14 or above during all of it. With all that stuff off it charges back up.. The light just won''''t go out.

I am told that I had a stock 110A alternator (the determining questions for all the parts stores seemed to be whether or not I had a factory Nav system, which I do not 110=no Nav, 130=Nav) What I have now may very well be a 130A, although the parts store kept making contradicting statements about the color of the regulator being black or white. They told me they only had a 110A in stock, and considering that''''s what I should have I bought it. When I got home I saw on the back a plastic tab says 130A. I was told upgrading to 130A was not a problem so I went with it.

Either I have a 100A which is what I was supposed to have in there or I have an upgrade to a 130A.

Could this cause the light to stay on or do I have another problem?

Mike

Raymond111 · #2 08-20-2008, 01:54 PM

Man - I'm in the exact same boat with you. Have been through 2 alternators from Auto Zone and one Motorcraft from the Ford dealer and I know the Battery is good but I'm still getting the quick flash of the battery icon and the check charging display. I'm thinking maybe a bad connector to the alt or wiring harness. I know the battery is being charged. They said my old alt was only putting out 69 - 70 amps. I don't know what to do..... I don't know what to do?

Raymond111 · #3 08-21-2008, 01:59 AM

Problem solved! The connector to the Alt was bad. Been driving the Expedition to get one little beep and maybe a quick light and seems to be gone. Ford part # 1U2Z-14S411-TA. Priced at $34.23. IT IS A 3 PRONG CONNECTOR. 03 Expedition Eddie Bauer 2 wheel drive 5.4 liter engine and no navigation unit. Motorcraft alt part # 2L7Z10V346BARM 110 AMP