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Found 270 results

  1. Is anyone else having an issue where the automatic start-stop feature on the vehicle stopped working? I just got the truck about 3 weeks ago (Brand New) and this is the only feature giving me an issue. It worked at first, but after driving it a week, it has not worked since. The only modification I have done on the truck is change out the License Plate light bulbs from halogen to LED. I'm at the dealership right now and they can't figure it out, so they are trying to contact GM regarding this issue. No error codes showing up according to them.
  2. Hello everyone! Newbie here…was hoping to get any and all advice before I make a big purchase. I currently have a 2007 GMC Yukon Denali with about 180,000 miles on it. My job as a Medical Device Rep requires me to drive to make money so I think it’s nearing time to put the ol 2007 out to pasture. I love the Denali, so I’m considering getting a 2015 – 2017 model but want to know the issues they have presented? I know the 2015 was the 1st year of the new body style and that can sometimes comes with quirks. Any help is appreciated. Thanks.
  3. I bought the 3 piece Underbody Shield (Part No. 23176882) a few weeks ago and had all 3 pieces powder-coated a matte red color that would match the red in the GMC emblem.. Fast forward to trying to install them last week and 2 of the 3 fit no problem, however the 3rd (which is the largest & most prominent one visually) did not appear to fit. The back bolt locations line up perfectly where it meets the other plate, however the front piece looks like it isn't long enough or shaped/angled correctly to reach what appeared to be the obvious locations for the provided threaded bolts. This Part No. as a standalone is 23135960 (GM OEM Engine Skid Plate). My question is this: Does this item actually not fit? I understand the Denali trim level has a different lower bumper due to the LED fogs, but did GM seriously over-engineer this to the point that the internals/bolt patterns & cross members don't match up for these?!? Hoping someone can provide me some input of confirm I'm just being an idiot & that there is a way to make this fit, because I really want to get this installed or find the proper replacement ASAP..
  4. Love my 2019 Denali but couldn't believe my eyes when i came out this morning and saw water on the back passenger side seat. 6 month old 65K truck and it leaks!!! Did a quick search and found others with the exact same problem and the exact same location. Will be calling service center in the morning. Here's another one I found. I took videos and pics if anyone is concerned what to watch for. My son is allergic to mold for me this problem is larger than most. Attached a pic of the headliner, can see how soaked it gets.
  5. $1200 Just took these off to get the black edition 22s. Tires have 80% tread left, they are continental crosscontact lx20 275/55r20 Wheels are OEM chrome 20 inch denali wheels. No blemishes or curb rash, they are perfect. TPMS not included. Located in South Florida but am willing to ship at buyers expense.
  6. I just bought an '18 2WD 1500 Denali. I'm not liking the way it sits so I am considering either a 2.25" leveling kit on the front or a 4" lift. For those with a lift, did it make the ride substantially rougher? Any pics or recommendations are welcome.
  7. Has anyone had a rear compressor issue with a new Yukon XL Denali? My wife and I bought the vehicle at the beginning of October 2018 and within a month the rear compressor began running excessively. We took it into the dealership with bought it from and the service rep heard the noise but was unable to reproduce it later in the day with the technician so they sent us away with the vehicle. The noise became more and more regular so we took it to a dealership near our house and they heard it and acknowledged the problem, this lead them to replacing the rear compressor. The change of the rear compressor didn't do the trick and the excessive running persisted, this is where the frustration really set in. The service technicians were going to run diagnostics and service the vehicle after we brought it in MLK Day. The service department manager interrupted the process and essentially tried to bully my wife into accepting the fact that this is normal behavior for a GMC Denali line vehicle. She left the dealership in tears. I called the service manager in disagreement with 1) his treatment of my wife and 2) disputing the fact this is normal. His response was the discharge the video with a bogus report emphasize the vehicle was in intended working condition. Now the Denali is sitting at another dealership while they try to replicate the issue. It occurs 30-40% of the trips we take in the vehicle and the rear compressor will run anywhere from a few seconds to 20 minutes. Has anyone else had this issue and found a resolution? I'm to the point I'm almost willing to just sell the vehicle back for a loss to be rid of it.
  8. Hello, i need some help with my 2016 Yukon Denali... so here is what’s going on and what I know... I took it in to the dealer 2 weeks ago to have the Magna Ride shocks replaced in the front.. I asked them if the rear air rides were fine and they told me they were just fine, I Imediately noticed a better ride when the front shocks replaced but started noticing a very loud sound every time I would go over any type of bump. So I called them back and ask them if they were sure that the rears were fine and they assured me they were. After some personal investigating I noticed that the driver side rear is very soft and bouncy and and the passenger side rear is extremely stiff. I did test the air compressor and seemingly working OK. Does anybody know why one shock would be very stiff and the other shock would be soft? Additionally I took it to a local suspension shop and they also told me that they were fine. I find it very hard to believe that one shock is stiff and one shock is soft. I noticed on the stiff shock that it looks like there is a little bit of dust buildup on it indicating a possible leak of fluid. So I did another little test on my own and I took the truck over some speed bumps and the driver side rear when I went over the speedbump glided right over it and made no road noise I can’t say the same for the passenger side rear when I went over the speedbump it made very loud noise and it was extremely stiff .
  9. Good Afternoon fellow 6.2L enthusiasts. I apologize if this sounds like a commercial or a rant. I just like to share what I've experienced and discovered. So, I don't know about you, but I've been searching for a way to cram more air into my L86 that won't break the bank. I've done hours upon hours looking for the perfect bolt on's or practices that will help the block breath deeper. I've learned that swapping intake manifolds are not worth it however, porting makes it one bad ass manifold. (which i've done) I threw on an AFE CAI and that really helped get the air moving. (momentum GT pro 5R) Headers and a bigger full exhaust helps get the flow rolling. (I'm rocking TSP 1 7/8 Headers with a 3.5" full exhaust (catted with Cal Cats) and a Flowmaster Pro series Muffler) Cylinder Heads and a Cam shaft will transform your truck. (going with TSP Heads and a Trick Performance Cam package) And a basic tune wakes these bad boys up. (local dyno-tuner) That being said after the above you're looking anywhere between 430-530 HP N/A. Obviously the Cam specs are going to swing that number. Now, The one thing that I have NOT been able to find is a Larger Throttle body that will fit the L86 Stock Manifold. So I did what most have done and ported that sucker out. The only issue is it will never be larger than 87mm. Until this came along. https://www.bbkperformance.com/92mm-throttle-body-14-18-corvette-camaro-lt1.html FYI slight modification is required to the stock Manifold. You need to shave the base of the Vacuum port as well as the MAP sensor base for the frame to fit. Once that is done you're rocking. I was able to Port match the TB Bore to the manifold inlet and smooth out the transition. Honestly I can immediately feel the difference. When I get a little bandwidth I will throw on some videos of Cold/warm starts, take offs etc. If you have any questions feel free to reach out!
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