flickering lights

1998 FORD EXPEDITION
93,000 MILES • V8 • 4WD • AUTOMATIC
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MYFORD98
  • MEMBER
  • 1 POST
98 ford expedition 4.6 liter 4x4 - all lights flicker when vehicle is cold after about half hour when engine is warmed up the lights stop flickering. is it the altinator or voltage regulator or amps not the correct amount.
Dec 17, 2010 at 5:45 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
I would suggest having the alt checked when it is cold and the problem is happening. However, something tells me you have a weak or bad ground. If the alt checks out good, make sure body grounds are good. Check to make sure battery terminals are clean and tight. Make sure the main ground to the engine block is tight and chean.
Feb 11, 2011 at 8:17 AM
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