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My battery light started going on and off.

Tiny
ANONYMOUS
  • MEMBER
  • 1997 FORD ESCORT
  • 100,000 MILES
My battery light started going on and off yesterday, now today my low fuel light comes on and off, the speedometer goes crazy and airbag light comes on and off. What is causing this?
Thursday, March 14th, 2013 AT 1:56 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,916 POSTS
Sounds typical of a failing charging system, and system voltage is dropping. Low voltage confuses computers and makes them do weird things. Measure the battery voltage with the engine running, AND while the problem is occurring, meaning the "battery" light is on. The voltage must be between 13.75 and 14.75 volts.
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Thursday, March 14th, 2013 AT 10:12 PM

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