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Headlight connector just...crumbled? (95 Subaru Legacy L)


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Hi guys, so about a few weeks ago I noticed my passenger side headlight wasn't working, so today I presumed the bulb blew and purchased a new set. I never changed these bulbs before so I referred to the manual, which told me to remove the "electrical connector" to the headlight, looked easy enough, so I pushed on both sides (as indicated)...wiggled it...nudged it...then stopped when I heard an alarming CRUNCH and felt the whole thing break apart in my grasp:

 

The result:

http://imageshack.us/a/img189/397/pju9.jpg

 

So, I'm a bit concerned...Do I now have a completely broken headlight unit? Can this connector be replaced? Is it easily doable? And moreover, is it expensive?

 

Im guessing the whole thing was dry rotted? The inside of the connector is corroded, complete with green oxidation on the wire. I'm thinking the bulb itself is not dead, since at one point the high beams worked for a second when fiddling with it (had the car on after it shattered to check if the driver side light still worked, lucky, it still does.)

 

Thanks guys.

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I was replacing mine once a year. I just used to cut them all off of every sooby i found in scrap yards to have a stock of them. The cause is that over the years of heating and cooling the blade connector loosens up ( or the wire to it corrodes) and causes the connection to overheat, melting the socket.

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Yep. Those connectors are quite prone to damage from heat caused by corrosion of the connectors, (as you can see by all the green stuff) and aging in general.

 

Every parts place I've seen sells replacements. A pair is usually $12-15. Solder and heat shrink the wires together, or use the heat shrink type crimp connectors.

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soldering is really easy.. if you don't own wire strippers it's easy just match the color wires up strip the wires and use heat shrink tubing.. tin the wires and solder the two together.. let the wire cool then slide the heat shrink tubing over the area you connected and heat it so the tubing shrinks down over it.

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get some heat shrink tubing, close to the size of the wires (it comes in many sizes)

there are 2 types -  a plastic looking type (shiny) and a rubbery type - the rubbery type is the better product by far.

 

Cut a piece of the heat shrink tubing about 2 inches long

Strip the ends of the wires about 1 inch

Slide the piece of heat shrink over one of the wires & out of the way.

Twist the stripped wires together tightly, like this:

 

1022wirerepairs1.jpg

 

Slide the heatshrink down over the twisted bare wires so it covers about 1/2 in of insulation on both sides of the repair.

Apply a heat source to the heat shrink (a common cigarette lighter works fine, just keep it moving), starting in the middle and working out to the ends until it has shrunk down snugly around the repair - it should look like this when done:

 

1023wirerepairs2.jpg

 

I have made many, many wiring repairs using this method over the years, both on cars and on semi trucks, and have never had a problem with them corroding inside the repair. Even repairs that were very exposed to the elements - such as wiring for marker lights on a semi trailer - for extended periods held up just fine.

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Don't solder it. Use heatshrink crimp connectors. I don't like soldering on car wiring anyway. Where the soldered wire transitions to not soldered wire there's a hard spot. Over time and vibration, it has a tendancy to break right there. Crimping with the sealing heatshrink connectors is the best way.

 

I do a lot of marine work, and it's the same deal there. If I can use a crimp, that's the best option.

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Hopefully you didn't blindly cut off the old connector without seeing where the wires went... Whenever I do these, I cut one wire at a time. 

Cut a wire off the old connector, and match it up to the same pin on the new connector. If you do it one at a time, you won't get lost.

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