Light Fogginess Inside Of Headlight?

[mtsusa]

So after my hid/projector retrofit I noticed a very light amount of cloudiness on the bottom half of each headlamp. It forms after the headlights go off and goes away after a few hours. I know the silicon seal around the lens is good, but I noticed a bit of light leakage on the back with the low beams.

 

I planned on removing the headlights and bulbs, blowing hot air into the bottom hole and letting it escape out of the top to dry it out, sealing the rubber caps and around the new H1 bi xenon bulb, installing the HID bulb, and using a vacuum on the high beam hole to remove any moisture that could've been introduced with the heat as water vapor.

 

Make any sense? Sound reasonable? Anyone have anything better to offer?

[Z71-K9]

Had the same issue with factory lights. I mentioned to my service manager. Replaced under warranty with no questions. My truck had over 36000 on it and it still was no issue. I believe there is a TSB on the problem.

[herkdriver007]

Are you sure you have a good seal? I would go back with the silicone and hit it again. the lamps when on are creating enough heat to get rid of the moisture, when not on it will build up.

 

No problems with mine, but i was extremely meticulous when sealing them up.

[peterarch]

Just check your seals again and make sure, whenever I do emergency light installs in vehicles/put strobes in factory headlights, taillights, foglights, eveything gets a generous coating of silicone where the hole was made, if it fogs up, i take it all out, put it in a nice warm, very dry place for a couple hours and then reseal everything.

[mtsusa]

See I was extremely meticulous too when I sealed the lens, if I look inside both lights with a flashlight I see the slight silicon seepage into the assembly and I ran 3 separate beads on the outside, so I know that wasn't the issue.

 

Doug, yes, there was no moisture when the lights were on, it was when I turned them off...and then it went away after a couple of hours. No visible water or anything, just the slightest cloudy look on the inside. I noticed that my lights are different than yours and I'm assuming the seals are different, because when mine were on I noticed a decent amount of light leaking out of the rear...and I have all my brackets/clips etc. done right. So that got a generous bit of silicon.

 

So far everything's back on and it looks good, thanks for all the replies. I'll be able to tell for sure when I drive it tonight.

[herkdriver007]

Our lights are different? How so?? Just curious, since I thought all Silverado-900s were the same... Might help the next guys attempting this project....

[mtsusa]

Sorry man I should've clarified myself. Yes we have the same size light (H1) but you must have a different brand or something of bulb, yours appears to have a bigger rear seal. I'll have to take a pic of mine to illustrate that.

[herkdriver007]

Ahh okay... You did use that little rubber washer included in the kit, right? I just cant see how the base of the bulb wouldnt cover enough of the housing. Snap a pic if you can