Join Date: Feb 2007
Location: Chicago (Elgin or West Chicago), IL, USA
New headlight housings fogging up in rain/snow/etc...
So late last year (not to long after I got the car), one of the first things I replaced were the nasty OEM headlight housings. At this same time I did a HID conversion as I do with all non-HID vehicles I own.
I purchased the TYC assemblies from Rock Auto and a DDM HID kit. Since it was a cold November day, I did the swap quickly, and didn't give much a thought to putting the moisture caps back on as I've never had issues before with vehicles that had a similar setup. Well, that bit me in the a$$. First rain/snow/etc we had, they fogged up. I lived with it through winter dealing with it every time we got precip or if I took it through a car wash. Then I'd leave the hood propped open to let the heat dissipate out.
So this past weekend, I ordered two more TYC light assemblies from Rock Auto. I did the swap, and stuffed all my HID parts/wiring in to the housing and sealed it with the moisture cap. All are tight and sealed.
Last night it rained... And the SOB's fogged up again. No where near as bad as before, but still...
WTH am I missing here? I just want a non-fogging assembly. Is it just these cheaper TYC assemblies? Is there a vent tube/hole that I am missing? I mean, I went through the whole assembly before I reinstalled on the car.
2004 Pontiac GTO:
IBM M6, 405 rwhp & 400 lbs-ft of torque.
2006 Cadillac STS-V:
Light Platinum Metallic, 412 rwhp & 472 lb-ft of torque. Mods? Yes!
Daily Drivers/Vehicles subject to natures wrath:
1999 Chevrolet Suburban LT 4x4: Sunset Gold Metallic
2009 Pontiac G8 GT: Sport Red Metallic
2009 Chevrolet Impala SS: Victory Red
2015 Chrysler Town & Country Limited Platinum: Black
2007 Chrysler Town & Country Limited: Medium Blue Pearl Metallic
Last edited by CMNTMXR57; 05-29-2019 at 11:10 AM.