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    Tahoe/Yukon Headlight Information Thread

    I have been using some AuxBeams in my 2011 Yukon Denali. The led light output is greater, and much whiter. But the turn down is not good. Low beam just isn't very low. I tried different orientations and even used a welding helmet to try to determine if there was an up, since they give no...
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    Slight "thud" on moderate accel from standstill

    Had it aligned today, and asked my buddy what he thought. He was leaning toward a driver's motor mount.
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    Slight "thud" on moderate accel from standstill

    OK. Great stuff. I checked the ball joints with my regular method and they appeared to be tight. But it is something I have missed.
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    Slight "thud" on moderate accel from standstill

    I noticed today that it will not do it power braking. Only after it starts to move does it pop. Almost sounds like something in the front right shock. I believe that is an air ride control if I remember correctly.
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    1,200-HP 260 CI Twin Turbo LS Full-Throttle On The Dyno For 5 Mins

    I have to say, the turbos are easier on valve trane than NA. I was making just over 700 hp na, and when I switched to turbos, I make better than 50% more HP, and am using a much much smaller cam to do it. Heat management is pretty important when you run it wot like that for that kind of time...
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    1,200-HP 260 CI Twin Turbo LS Full-Throttle On The Dyno For 5 Mins

    That's pretty cool. I am not trying that with my gen 1 TT. It only has to live 7 seconds at a squirt. LOL.
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    Slight "thud" on moderate accel from standstill

    Looked at that I think on page two. Movement seems within reason. Does not look broken.
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    Slight "thud" on moderate accel from standstill

    Full or empty the same.
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    Slight "thud" on moderate accel from standstill

    I will check that too. Anyone have an AWD that seems like it has more than it's share of driveline slack? The transfer case has a bunch. The rear seems plenty too, but not as bad as the transfer case.
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    Slight "thud" on moderate accel from standstill

    I'll stick it back on the lift and look at them.
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    Slight "thud" on moderate accel from standstill

    How do you check em?
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    Slight "thud" on moderate accel from standstill

    Front axle mounts?
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    Slight "thud" on moderate accel from standstill

    Shaft greased, thud still there. I tried to post a power brake video, but too large. Moves some but not a lot. Really doesn't make the noise power braking. Son said it sounds like it is in the right front. Sway bar and bushings look good. I will say, what a lot of slop the transfer case and...
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    Slight "thud" on moderate accel from standstill

    I will grease my shaft then. :) I know you can't always tell, but the noise doesn't sound like classic u joint. And by hand there isn't any play. Since the shaft will be disconnected, I can check it for feel. Thank you I will report back!
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    Slight "thud" on moderate accel from standstill

    Yes it does. About the time the truck starts to rock back, and the tires starting to turn you hear/feel it.
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    Slight "thud" on moderate accel from standstill

    I was just under there, I will chekck the sway bars. I heard something about driveshaft clunk?
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    Slight "thud" on moderate accel from standstill

    Doesn't seem to be the motor mount. Saw some posts on that and the engine doesn't move.
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    Slight "thud" on moderate accel from standstill

    2011 Yukon Denali awd From a stand still, if you accelerate moderately there will be a slight thud. I can't identify where it is coming from. I checked to see if the spare tire was loose. It wasn't. Is this anything common?
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    11' Denali Telescoping Steering?

    Pedals are all the way forward. I have the seat forward more than I like, but it is doable. Just wondered since the switch looks like the one for telescoping, only without two arrows.
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    11' Denali Telescoping Steering?

    I have an 11' Denali XL. It has the electric vertical steering wheel adjustment, but not telescoping. Is this common? I sure would like the telescoping since I am tall and when my seat is back far enough to be comfortable, my arms are way out there. I almost wondered if the po may have had a...
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    Air suspension concern

    Ok the pump runs as it should. Hasn't made the thump for over a week now.
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    Air suspension concern

    I will have some things to check out now and pay attention too. I will check back with findings.
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    Air suspension concern

    2011 Denali Recently I have noticed every time I start up, even after only a short period parked, the air pump kicks on, and I will get a dull thump from what sounds like the front right after it runs for a moment. I don't recall this in the past. Any diagnosing I can try or look for? Oh...
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    Wheel/Tire Suggestion Please

    Great article. 20's it is then.
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    Wheel/Tire Suggestion Please

    Well and let's face it: There are a lot of winters where we only get 5 snows. It's an AWD vehicle. Just about any tire ought to get through most stuff. This year was particularly bad unfortunately. Something that handles the corners a little better would be nice.
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