Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Headlamp bulbs blowing regularly
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Old 10-27-2012, 07:58 AM   #5
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What I Drive: 2002 bright yellow ZX5

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Sounds as if the voltage regulator in your alternator could be bad, causing high output voltage. This could cause damage to way more than just light bulbs, battery and ECU just to name a couple. Good idea to deal with this right away.
Good luck,
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