Question about 2007 GMC Yukon Denali

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How do I clear the condensation in the headlamp?

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You can remove it and blow it with a reversed vacume cleaner, but it will come back again, usually the housing has cracked.Sometimes reaseal works, but you will find that replacing works best.

Posted on Aug 29, 2010

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Posted on Jan 02, 2017

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What to do about condensation inside headlamps. Is this normal or should i consider it as a problem?


Its a problem.
The headlamp housing should be a sealed unit.
The housing could be cracked, or the gasket for the bulb socket could be damaged.

Apr 03, 2013 | 2005 Dodge Caravan

1 Answer

How to remove headlamp assembly 2006 Ford Five Hundred


bulb replacement?

You may be able to clear bumper cover by pusihing down while pulling out lamp.

Please rate.
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SECTION 417-01: Exterior Lighting 2005 Freestyle/Five Hundred/Montego Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 03/14/2005
Headlamp Assembly - Five Hundred, Montego adobe.gif Printable View (211 KB) n0050703.jpg
Item Part Number Description 1 W702706 Top headlamp assembly bolts (2 required) 2 W704551 Side headlamp assembly bolt 3 W702706 Front headlamp assembly bolt 4 13005/13006 Headlamp assembly (RH/LH)
Removal
  1. Remove the front bumper cover. For additional information, refer to Section 501-19.
  1. Remove the 4 bolts and the headlamp assembly.
    • Disconnect the electrical connectors.
Installation
  1. Connect the electrical connectors and position the headlamp assembly in place.
  1. Install the side headlamp assembly bolt.
    • Tighten to 11 Nm (8 lb-ft).
  1. Install the front headlamp assembly bolt.
  1. Install the top outboard headlamp assembly bolt.
  1. Install the top inboard headlamp assembly bolt.
  1. Install the front bumper cover. For additional information, refer to Section 501-19.

Aug 03, 2011 | Ford Five Hundred Cars & Trucks

1 Answer

I have moisture inside my headlight on my 2007 gmc denali. will i have to replace the entire assembly. The lamp is out, could that cause the moisture. Or does the moisture cause the lamp to burn out.


{: ) Some exterior lamps, such as cornering, turn signal, backup, headlamps or tail lamps may exhibit very small droplets of water, a fine mist or white fog (condensation) on the inside of the lamp lens. This may be more noticeable on lamps with "multi-lens" designs and may be normal during certain weather conditions. Condensation occurs when the air inside the lamp assembly, through atmospheric changes, reaches the "dew point". When this takes place, the moisture in the air within the lamp assembly condenses, creating a fine mist or white fog on the inside surface of the lamp lens.
Most exterior lamps on General Motors vehicles use a vented design and feature a replaceable bulb assembly. They are designed to remove any accumulated moisture vapor by expelling it through a vent system. The vent system operates at all times, however, it is most effective when the lamps are ON or when the vehicle is in motion. Depending on the size, shape and location of the lamp on the vehicle, and the atmospheric conditions occurring, the amount of time required to clear the lamp may vary from 2 to 6 hours.
Completely sealed headlamp assemblies (sealed beams) are still used on a limited number of models being manufactured today. These lamps require the replacement of the complete lamp assembly if a bulb filament burns out.

If moisture or droplets appear after being exposed to rain or washing, you can try putting some weather seals on the edges where you think the seal is poor. Check also the headlamp caps. In any case, if the moisture doesn't clear no matter what drying approaches, better replace the assembly.
The bulbs won't cause the moisture, but it is possible that an accumulated moisture on the bulb itself can disable it, although rare.

Jun 27, 2011 | 2007 GMC Yukon Denali

1 Answer

How to replace a headlight


please rate, thanks.

SECTION 417-01: Exterior Lighting 2000 Focus Workshop Manual REMOVAL AND INSTALLATION Procedure revision date: 03/6/2003
Headlamp Assembly Removal
All vehicles
  1. Remove the fender splash shield lower retaining screw.
    • Push the fender splash shield to one side.
    e0014434.jpg
  1. Remove the headlamp assembly lower retaining bolt.
    e0022745.jpg
  1. Remove the radiator grille.
    e0010551.jpg
Vehicles built up to 07/1999
  1. Remove the headlamp assembly.
    • Disconnect the headlamp assembly electrical connector.
    e0022744.jpg
Vehicles built 07/1999 onwards
  1. Remove the headlamp assembly.
    • Disconnect the headlamp assembly electrical connector.
    e0030083.jpg
Installation
Vehicles built up to 07/1999
NOTE: Procedure if there is a concern over the formation of condensation inside the plastic headlamp lens or if the plastic headlamp lens is split.
NOTE: It is normal for a small amount of condensation to form on the inside of the plastic headlamp lens, it will disappear when the headlamp is switched on. If the headlamp does NOT dry out after having been switched on for 15 minutes, check the build date of the headlamp. If the build date is between 01.08.98 and 30.09.98, install a new headlamp cover flap.
NOTE: If there is a concern, both headlamps must be removed. Defective headlamps must be renewed and reworking may be necessary. When the headlamp is installed, the number of mounting points must be reduced.
  1. If the headlamp assembly is defective, install a new one.
  1. NOTE: Sometimes the guide pin on the plastic headlamp lens is still present on a new headlamp assembly.
    Cut off the guide pin flush and de-burr as necessary.
    z9921164.jpg
  1. Remove the headlamp levelling motor from the faulty headlamp assembly and install it on the new headlamp assembly. For additional information, refer to Headlamp Leveling Motor - Vehicles Built Up To: 10/2001 in this section.
  1. NOTE: Sometimes there is no hole in the bracket of a new headlamp assembly.
    Do NOT install the retaining bolt any more.
    e0022746.jpg
All vehicles
  1. NOTE: Fix the headlamp assembly in place using the locating pin.
    Install the headlamp assembly upper retaining bolts.
    • Connect the headlamp assembly electrical connector.
    v9710258.jpg
  1. Install the radiator grille.
    e0010551.jpg
  1. NOTE: Fix the headlamp assembly in place using the locating pin.
    Install the headlamp assembly lower retaining bolt.
    v9610258.jpg
  1. Install the fender splash shield lower retaining screw.
    e0014434.jpg
  1. Adjust the headlamps. For additional information, refer to Headlamp Adjustment - in this section. For additional information, refer to Headlamp Adjustment - Vehicles With: High Intensity Discharge Headlamps in this section.

Dec 16, 2010 | 2000 Ford Focus

3 Answers

I am in the process of buying a jeep Laredo which seems to have condensation inside the headlamp glassis it possible to clean this/replace the glass/or is it best to buy a new pair


Condensation is deemed to happen if ambient temperature is lower than inside the headlamp and humidity inside of headlight is too high.
From a headlight design perspective, you cannot lower ambient temperature. Not much can be done with temp inside headlight either. However, humidity levels on the inside can be reduced. Most designs usually have 2 or 3 air vents to keep humidity below condensation threshold levels.
This might sound complicated, but the phenonomen is exactly the same as windows in a winter home and humdity levels inside. Too much showering, and bathroom window fogs up. Venting will reduce condensation.

You might wonder why headlamps are not designed to be 100% air tight, so that no humidity enters? Well, that would be in an ideal world with no heat losses in bulbs. As the headlights goes through continous warm-cold-warm-cold cycles as you turn light on and off, the air and plastic will expand and retract. This creates pressure changes, which will move a slight amount of air in and out. So instead of forcing the air to be inside, air is moved through controllable passages, so that minimum of road dirt will enter.

If condensation disappears within a week. Moisture can have been sucked up in high pressure wash. This should normally dissapate within a week by itself.

If condensation amount stays constant, then there is crack(s) in headlight that lets in water. This can be siliconed, depending where the crack is, or a replacement headlight should be considered.

Nov 04, 2009 | 2001 Jeep Grand Cherokee

1 Answer

Condensation in headlite pots


They make kits that you can use to clean out the headlamp assemblies. If the condensation is building up, the vent tubes on the headlamp assemblies may be clogges. These vents are usually small rubber tubes coming from the back or bottom of the assemblies. Make sure they are clean and free of obstructions

Jul 16, 2009 | 2005 Chevrolet Colorado

1 Answer

BMW 1997 528i Headlamp stays on


unfortunately this means that the light module (LSZ) needs to be replaced.

Jun 28, 2009 | 2001 BMW 5 Series

1 Answer

How to replace front turn light bulb on Caddy SRX 2004?


  1. Open the hood.
  2. Remove the push-pin retainers that secure the top of the upper fascia and grille assembly to the upper tie bar to allow the upper fascia and grille assembly to flex forward.
  3. Remove the bolt and the push-pin retainer that secures the top of the headlamp assembly to the upper tie bar.
    1. Gently pull the upper fascia and grille assembly forward only far enough to remove the bolt located at the bottom inboard side of the headlamp assembly.
    2. Pull the headlamp assembly straight out to disengage the snap-in retainer at the lower outboard back surface of the assembly. Turn the assembly so that the front inboard corner clears the front fascia.
    3. Pull the headlamp assembly out and away from the vehicle
    4. Disconnect the headlamp electrical connector.
    5. Remove the headlamp assembly from the vehicle.
    6. Remove the headlamp bulb cover from the headlamp assembly.
    7. Remove the headlamp bulb socket from the headlamp assembly.
    8. Remove the headlamp bulb.
    9. Remove the side marker bulb socket from the outer side of the headlamp assembly.
    10. Remove the side marker bulb.

Feb 12, 2009 | 2006 Cadillac SRX

1 Answer

Headlamp condensation


Had this problem in my 05 DHS - Cadillac replaced the assembly under warranty.

Dec 14, 2008 | 2006 Cadillac STS

1 Answer

Headlamps fogging up how can the condensation be elimenated


UNFORTUNATELY THE ONLY THING THAT CAN FIX THIS PROBLE, IS TO REPLACE THE HEADLAMPS. I'VE WORKED IN BODY SHOPS FOR 8 YEARS AND I HAVE FOUND NOTHING TRUELY FIXES THIS PROBLEM.

Dec 14, 2008 | 2006 Cadillac STS

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