Yellow headlight fixes
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Postmaster
Joined: Jun 2001
Posts: 2,809
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From: Loveland, CO.
Yellow headlight fixes
1: Someone had posted to drill a small hole at the bottom of the plastic lens, whether or not you see condensation in it. They said that within a couple of days, the yellow would go away. I figured that at least this would be cheap, so I did it to my 90, and danged if it didn't work! The lights are much whiter now! They are still sort of "fuzzy" but much whiter!
2: I don't know if this stuff works, but I found it on the web.
http://www.mdwholesale.com/
2: I don't know if this stuff works, but I found it on the web.
http://www.mdwholesale.com/
Senior User
Joined: Mar 2004
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From: Hanscom AFB, MA
This is a common problem with older mustangs and the only REAL fix is to replace them. This is a discoloration of the plastic lens itself, which can be polished away with limites success, but rapidly fades afterwards. Get on E-bay and do some searches for them. It shouldn't be too much on there.
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Postmaster
Joined: Jun 2001
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From: Loveland, CO.
I want to replace them eventually - unfortunately the 1990 style is the most expensive for Ford trucks and will cost close to $200 to do both. You can't just replace the lenses on these. You have to buy the whole deal, with the frame and the corner light etc. If I could, I would have done it a long time ago. The cost is why I am trying to find a way to make them better. The holes that I drilled helped a lot and make them fairly white again, they could be clearer though. So eventually I will replace them but it's going to be a while before I have a spare $200 for headlights.
Posting Guru
Joined: Apr 2004
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From: Corinth, TX
hey, I have been thinking about doing something like this to "fix" my headlights... and now I see that it's not just my hairbrained idea 
. So, did you drill just one per light? What size bit did you use? I was thinking about using a 5/32" bit and putting one hole at each corner of the lens. That way it could drain any water build-up and also let out any steam that could cause condensation. What do ya think?
. So, did you drill just one per light? What size bit did you use? I was thinking about using a 5/32" bit and putting one hole at each corner of the lens. That way it could drain any water build-up and also let out any steam that could cause condensation. What do ya think?
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Postmaster
Joined: Jun 2001
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From: Loveland, CO.
I am not sure exactly what size, I used a fairly small bit and drilled a couple of holes sort of diagonally up into the light from the bottom corner. After a couple of days the lights are a lot whiter, although they are still sort of blurry. It's a great improvement until I can afford new lights though.
