5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Headlight Switch

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Old Jan 7, 2011 | 08:43 AM
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89StangGTConvertible's Avatar
89StangGTConvertible
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Default Headlight Switch

Hi all - seems like a great forum here, so I just joined.

I just purchased a 1989 GT Convertible with 55,000 original miles. Bone stock, in mint condition, right down to the original turbine wheels. Last night, the headlight switch stuck in the park position, and would not budge to the off position. I removed the switch with no problem, and am going to order a new one. Question: what is the best way to unplug the wiring harness on the back? I see where it latches on, but I don't want to break anything...

Thanks in advance for any help you might provide.
Old Jan 7, 2011 | 09:10 AM
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There's a tab on the plug that hold it to the switch,just gently pry it up a LITTLE and the switch will unplug from it.

Check the plug also,to see if it's melted.We carry both the plugs and the switches with free shipping.

Here's a link to them on our site if you would like to take a look at them.

Mustang Headlight Switch
Old Jan 7, 2011 | 09:58 AM
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Thanks, Tony.
Old Jan 7, 2011 | 10:11 AM
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Originally Posted by 89StangGTConvertible
Thanks, Tony.
No problem, had it happen to me too. I was on my way to a house party with the wife and BAM all of a sudden NO LIGHTS

I managed to wiggle the plug and got them working again to get the car home. When I brought it down the body shop my dad owned the plug was toast too.

I ended up cutting the old melted end off and soldering a new end on.It was pretty easy to do.
Old Jan 7, 2011 | 10:22 AM
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Originally Posted by 89StangGTConvertible
Thanks, Tony.
where are you in MD?? I have a bunch of extra parts laying around, I may have a switch....
Old Jan 8, 2011 | 07:20 AM
  #6  
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Originally Posted by 1ATony
No problem, had it happen to me too. I was on my way to a house party with the wife and BAM all of a sudden NO LIGHTS

I managed to wiggle the plug and got them working again to get the car home. When I brought it down the body shop my dad owned the plug was toast too.

I ended up cutting the old melted end off and soldering a new end on.It was pretty easy to do.
At least mine malfunctioned when I got home! I ordered a new switch from your company yesterday. What part of NH are you from? I live in MD now, but grew up in Ashby, MA, on the New Ipswich, NH border. Took my wife to the White Mts last year, we had a blast!
Old Jan 8, 2011 | 07:22 AM
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Originally Posted by mjr46
where are you in MD?? I have a bunch of extra parts laying around, I may have a switch....
I already ordered a new switch, but thanks so much! I live less than 1 mile from the DC line. Where are you at?
Old Jan 8, 2011 | 07:28 AM
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Originally Posted by mjr46
where are you in MD?? I have a bunch of extra parts laying around, I may have a switch....
Mike, I see now that you are from West Virginia. Funny, but that's where I am right now. I own a cabin in Berkeley Springs. We got 3 inches of snow here in the mountains last night.
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