Headlight problem
Hotshot
Joined: Sep 2001
Posts: 11,958
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The hi beams aren't really all that much brighter, they are just angled up more. If that is occuring when you switch them, then they are working.
How do you mean the indicator stays on high or low beam. It can't stay on both.
How do you mean the indicator stays on high or low beam. It can't stay on both.
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Senior User
Joined: Feb 2011
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When high beam is on the blue indicator is lit up when low beam is on the blue indicator is lit up.
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Senior User
Joined: Feb 2011
Posts: 403
Likes: 1
was plannin to do that today, i was just curious why there aint much diffence in the high/low beams..there used to be quit a difference in my high and low but not now.
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i ain't rite
Joined: Mar 2005
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From: Marlboro Mental Hospital.
if the switch shorts out internally, it will not make any difference what the position the switch is in.
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From: Eastern Ky
BUT
Sometimes, it'll allow me to change from High/Low....I don't get it...W-T-F
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Senior User
Joined: Feb 2011
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The dimmer switch in my truck has a mind of its own....90% of the time, I have highbeams only....And if I switch to the dim side, the highs stay on, and the Highbeam light stays on....
BUT
Sometimes, it'll allow me to change from High/Low....I don't get it...W-T-F
BUT
Sometimes, it'll allow me to change from High/Low....I don't get it...W-T-F
Elder User
Joined: Nov 2010
Posts: 957
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From: Graniteville
It's due to the swap, the 91 down uses a 9004, the 92 up uses a 9007. You need to swap the pins around inside the plug to match the new bulb. What is happening is you are applying power to what is supposed to be the ground pin on the bulb, it then backfeeds thru the other filament and causes the indicator to light up and the bulbs to be wonky in brightness. The easiest way is to get ahold of a truck with 9007 bulbs in it (either a 92-96 F series or Explorer will work) and use a test light to identify which one is hot low beam and hot high beam, and then make note of which/where they are in the plug. Then using the test light, identify the same ones on your current plug and them swap them into the corresponding position from your notes on the other plug.
Thread Starter
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Senior User
Joined: Feb 2011
Posts: 403
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It's due to the swap, the 91 down uses a 9004, the 92 up uses a 9007. You need to swap the pins around inside the plug to match the new bulb. What is happening is you are applying power to what is supposed to be the ground pin on the bulb, it then backfeeds thru the other filament and causes the indicator to light up and the bulbs to be wonky in brightness. The easiest way is to get ahold of a truck with 9007 bulbs in it (either a 92-96 F series or Explorer will work) and use a test light to identify which one is hot low beam and hot high beam, and then make note of which/where they are in the plug. Then using the test light, identify the same ones on your current plug and them swap them into the corresponding position from your notes on the other plug.
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From: In my own world
The dimmer switch in my truck has a mind of its own....90% of the time, I have highbeams only....And if I switch to the dim side, the highs stay on, and the Highbeam light stays on....
BUT
Sometimes, it'll allow me to change from High/Low....I don't get it...W-T-F
BUT
Sometimes, it'll allow me to change from High/Low....I don't get it...W-T-F