Coolant leak from Reservoir

[97audia4]

With my battery cable fiasco this morning, the drivers side headlight go burned out.

Picked up a new bulb at the dealer today and while installing it i moved the air box over and while getting my hands between air box and back of the head light bumped the coolant reservoir.

Thats when I notices a leak onto the fender well and down on the ground below.

Anyone ever seen this before? I called the local dealer and they have one in stock and I am going to pick one up at the end of day.

 

[petethepug]

The headlight replacement on the Yukon is a nightmare. Watch a few YouTube videos before u dive in.

Odds are the little running light next to the orange reflector is out too. If you’re going to pull the entire housing replace it too, you won’t want to redo this job for a long time.

Don’t run the OE bulbs. Don’t run sylvania silver stars either. They don’t last + class action lawsuit on SylverStars. Since 2001 the best oe bulb I’ve found is the PIAA extreme. The Japanese nailed the bulb technology and this one is proven. About 30% brighter and use same wattage as factory 9008 bulb. You’ll be good 5-8 years with these, just don’t touch bulbs during install or they’ll last a few Mo’s. Compared to oe bulbs all I can say is you’ll never go back.

The pattern is exactly the same, it’s just that the usable light output will seem doubled. They do not blind oncoming traffic either.


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[97audia4]

The headlight replacement on the Yukon is a nightmare. Watch a few YouTube videos before u dive in.

Odds are the little running light next to the orange reflector is out too. If you’re going to pull the entire housing replace it too, you won’t want to redo this job for a long time.

Don’t run the OE bulbs. Don’t run sylvania silver stars either. They don’t last + class action lawsuit on SylverStars. Since 2001 the best oe bulb I’ve found is the PIAA extreme. The Japanese nailed the bulb technology and this one is proven. About 30% brighter and use same wattage as factory 9008 bulb. You’ll be good 5-8 years with these, just don’t touch bulbs during install or they’ll last a few Mo’s. Compared to oe bulbs all I can say is you’ll never go back.

The pattern is exactly the same, it’s just that the usable light output will seem doubled. They do not blind oncoming traffic either.


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Headlight was out in 5 minutes taking out the 3 bolts from the top and taking out the top grill bolts. Used long nose pliers and cracked it loose and in and out it was.

The coolant bottle leak has me thinking a little bit as to why it would be leaking there. I am going to replace with new tomorrow and see how it does.

 

[petethepug]

Anyone else, pls comment on this. Can I have the pleasure of swapping out a bulb on an 08 6.2L like this (fingers crossed).

Headlight was out in 5 minutes taking out the 3 bolts from the top and taking out the top grill bolts. Used long nose pliers and cracked it loose and in and out it was.

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[Doubeleive]

takes me about the same about 5 minutes to pull a headlight housing, you do not have to remove the entire bumper cover, you just remove the 10mm bolts all across the top of the grill and the 2 on top of the light housing, then take the top bolt out of the wheel well cover it's a 7 or 8mm, pull the cover back reach inside with a 10mm and loosen the last headlight bolt then pull the housing out forward, easy peasy.

 

[97audia4]

takes me about the same about 5 minutes to pull a headlight housing, you do not have to remove the entire bumper cover, you just remove the 10mm bolts all across the top of the grill and the 2 on top of the light housing, then take the top bolt out of the wheel well cover it's a 7 or 8mm, pull the cover back reach inside with a 10mm and loosen the last headlight bolt then pull the housing out forward, easy peasy.

I had planned to remove the cover so I could install the new negative and posive batter cables but I got lazy and just did the headlight and that's when I found the leak.

 

[PG01]

I had planned to remove the cover so I could install the new negative and posive batter cables but I got lazy and just did the headlight and that's when I found the leak.

Cover is off in 5 min, 10mm bolts across top 7mm and philips screws inner front fender liner and 2 10mmat bottom of inner front fender liner but i think you know and have done that.
Just makes life easier to remove it. Imo

 

[PG01]

With my battery cable fiasco this morning, the drivers side headlight go burned out.

Picked up a new bulb at the dealer today and while installing it i moved the air box over and while getting my hands between air box and back of the head light bumped the coolant reservoir.

Thats when I notices a leak onto the fender well and down on the ground below.

Anyone ever seen this before? I called the local dealer and they have one in stock and I am going to pick one up at the end of day.

View attachment 219247 View attachment 219248

Its cracked? I cant see it?

 

[97audia4]

Its cracked? I cant see it?

There is that bottom piece almost looks like a clip has a week hole there and it's coming right out of that .

From what litmited information from a few dealer techs it's an internal pressure relief and they have seen the valve fail and start leaking