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When I turn key anti-theft light starts blinking.

Tiny
TIM7279
  • MEMBER
  • 1997 FORD TAURUS
  • 142,000 MILES
When I turn key anti-theft light starts blinking rapidly car cranks really slow or not at all and battery gets drained fast
Sunday, November 11th, 2012 AT 12:55 AM

3 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,871 POSTS
Bad battery or generator. Measure the battery voltage and holler back with what you find.
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Sunday, November 11th, 2012 AT 3:39 AM
Tiny
TIM7279
  • MEMBER
  • 2 POSTS
The battery is new it reads 12.6 volts until you start cranking then it drops to 6.1 volts but all the car does is click or crank slow
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Sunday, November 11th, 2012 AT 8:31 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,871 POSTS
At 12.6 volts the battery should be fully charged. 6.1 volts is way too low during cranking. The most likely cause is bad connections at the battery cables. I'll bet you put the meter probes on the cable clamps. Put them right on the battery posts and measure the voltage again during cranking. If the voltage stays high there, clean those connections.
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Monday, November 12th, 2012 AT 2:36 AM

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