Not sure

MTPDWDS

MEMBER
2008 FORD F-150
2WD
AUTOMATIC
90,000 MILES

My battery light started coming on, so I replaced it with a new one. After replacing it my battery light comes on off all the time. Then today my abs light came on and my radio started turning to different stations in its own.

Monday, March 14th, 2016 AT 12:49 PM

3 Replies

CARADIODOC

MECHANIC
33,873 POSTS

What did you replace and what led you to do that?

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Monday, March 14th, 2016 AT 1:19 PM

MTPDWDS

MEMBER
1 POST

It started off by the battery light staying on, so I replaced the battery with a new one. Once I replaced the batter, y the battery light when off then came back on and about every 15 to 20 minutes the battery light would come on then go off again. Then today the abs light came on as well and my stereo started changing itself.

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Monday, March 14th, 2016 AT 1:24 PM

CARADIODOC

MECHANIC
33,873 POSTS

That's a common mistake. The "Battery" light has nothing to do with the condition of the battery. It means the battery is not being recharged while you're driving. The place that sold you the battery should have offered to test the charging system. Given the mileage and the intermittent nature of the failure, the best suspect is worn brushes inside the generator. Ford finally went to a really nice generator design in the 1990's, but the engineers must have figured out that they were almost as easy to diagnose and repair as the Chrysler systems, so they changed them. Now, if testing proves the generator is not working, it is more economical to just replace it. The testing has to be done while the problem is occurring.

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Monday, March 14th, 2016 AT 1:41 PM