Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

Flickering Headlights

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Old 12-16-2006, 10:04 PM
  #1  
unit91
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Default Flickering Headlights

Headlights flicker at a prety steady tempo while driving. Any ideas?
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Old 12-16-2006, 10:09 PM
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bignatesan
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Default RE: Flickering Headlights

Maybe a bad ground somewhere.
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Old 12-16-2006, 10:55 PM
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mustanglover66
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Default RE: Flickering Headlights

check the ground wires atached to the headlights
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Old 12-17-2006, 12:04 AM
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valley firearms
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Default RE: Flickering Headlights

Those old wires get hard over the years and the insulation on the outside crack. It may be a short or bad ground as the others have stated.
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Old 12-17-2006, 12:10 AM
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unit91
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Default RE: Flickering Headlights

OK.....will do. Do you know if there's a way to answer more than one reply at the same time?
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Old 12-17-2006, 12:12 AM
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Halz5
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Default RE: Flickering Headlights

Couldnt a bad voltage regulator cause that or no?
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Old 12-17-2006, 12:16 AM
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unit91
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Default RE: Flickering Headlights

Could be. How about alternator/regulator or loose belt?
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Old 12-17-2006, 12:16 AM
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rmodel65
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Default RE: Flickering Headlights

are u running halogens? sometimes they can cause the switch to overload and make the circuit protection to open
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Old 12-17-2006, 12:17 AM
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unit91
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Default RE: Flickering Headlights

Nope......just regular bulbs......
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Old 12-17-2006, 02:45 AM
  #10  
stanging
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Default RE: Flickering Headlights

Need a new head light switch, which I believe is also a circuit breaker on early mustangs.
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