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2007 headlights dimming

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Old Sep 22, 2008 | 02:03 PM
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Dan_K's Avatar
Dan_K
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From: Minden, NV
2007 headlights dimming
On my 2007, I can start the truck and turn the headlights on. After 5-10 seconds, they dim, I don't hear a click but its almost like some type of relay kicks on and they instantly are less bright.
Is the norm?
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Old Sep 22, 2008 | 02:16 PM
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dj_souvlaki
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From: Toronto, Ontraio, Canada
how cold is it where you are?

are you sure it isn't your heating grids kicking on? does your voltmeter drop?
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Old Sep 22, 2008 | 04:07 PM
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bighornram
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From: Delta, PA
Go down to the 03-07 engine/drivetrain forum and read the stickied thread on this. Should be the 4th thread down from the top. That's what it sounds like to me - normal.
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Old Sep 22, 2008 | 06:45 PM
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CTDinMT
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From: Southern Utah
Grid heaters. Perfectly normal while your grid heaters cycle...
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