I've had a problem with my fog lights melting the plastic lens. The white part and cracks are what I'm showing. The liquid/melting is from something else that we used to seal the cracks. Here's what they turned into (not sure where the rust came from).


I replaced them with these OEM replacements...


I replaced them in March of this year, so it's been barely 9 months, and it's starting to do this again. The lens is fogging up and getting all melted on the inside of the lens. Any idea why this is happening? What type of bulb should I be using in them? I haven't changed the type of bulb since I got the truck, but maybe it's too high of wattage?

 

Might be to hot of bulbs in there. I think the stockers are only like 35watts? If that? Pull one of the bulbs, and see what they have to say.

 

Must be higher wattage bulbs than OE. I leave mine on all the time with no issues at all.

 

I had the same thing happen with my truck. The bulbs burned, so I pulled them, matched them to something on the shelf, and next thing I know the lenses turned colors, cracked, and have started bubbling/bulging.

 

Anything higher than 35 watt bulbs will melt them every time.
I used to melt the ones in my Neon all the time.
The Clear style fogs seem to hold up better than the older style.

 

I have modified my fog lights to accept a different bulb. I am running a 55 watt bulb and run my lights all the time. I have never had any melting/fogging of the lights. Been running them this way for well over a year. Stock is actually 37.5 watt.

 

Please share the details of that mod.

 

Well I finally got time to check out the bulbs (and it was finally warm enough for me to want to work on my truck). I have 37.5w bulbs in them. I can't see going much less than that.

 

Stock is I think 27 watt..... that may indeed be the problem.

 

live in Florida and finally warm enough to work on truck, wow wished I lived in Florida rather than snow covered Iowa