Question about 2003 Ford Focus

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Ford Focus '03 zx3 52,000 miles. dead batt. which was jump started. veh. began jerking and shuddering at fwy speeds, finally gace out NO notice on surface street. AAA tow driver said poss. alternatior issue. Any ideas?

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Yes the alternator has failed or the wiring to it, this caused a low voltage condition that caused the engine to stop once it went below about 10 volts.

Posted on Jul 17, 2009

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If battery is not being charged, the alternator is a definite possibility. Get the battery charged up, then the problem can be serviced. Don't try to keep driving it just because it seems to run ok. The problem will return when the battery is dead again. If an internal short in the alternator has occurred, it will likely blow a fuse-link which is buried inside the wiring harness (brilliant design). Replace the alternator, but it still doesn't charge the battery! Find a good automotive electrical shop if you don't have the tools or skill to chase this down.

Posted on Jul 17, 2009

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  • Master
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Yes, when jumping the batt the ecu may be damaged and the alternator.

Posted on Jul 17, 2009

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