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2007 and newer Chevrolet Tahoe and GMC Yukon

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  • Since you have the Denali, you also have the 6.2l V8, right? It might come stock with a "high performance" exhaust unlike the 5.3l non-Denali vehicles. The 6.0l Avalanches come with a different standard exhaust too, though it appears to at least be an aluminized system (like the stock 5.3l system). The GM Accessories cat-back systems are both all stainless steel.

    I bought the GM touring cat-back exhaust with my Avalanche. Because it took a couple of weeks after the Av came in for the exhaust to come in I was able to compare the stock and new system. Stock was much quieter under any sort of engine load, where the touring system is especially loud when the Av's cold or I'm into the throttle heavy. At normal cruising speeds it is actually mellow but noticable. The GM accessories site indicates that the performance version would be even louder.

    So if you do have the stock engine it's probably as quiet as it's going to get without a bit of aftermarket digging around. I can pretty much guarantee that any non-original part number GM accessories system will be even louder.
  • Yes I have the Denali with the 6.2l. Thanks for your response! Makes sense.
  • I was looking at the standard features of the Denai. It says it comes with 6 CD in-dash changer. When you upgrade to the CD/DVD MP3 with the rear entertainment DVD, do you lose the 6-CD chager? Mine appears to be that way, but the saesman didn't explain that to me.
  • 4burb4burb Posts: 55
    2007 LT3 with rear entertainment, not Denali. However, that is what I was told. Mine was supposed to have 6 disc changer but lost it when I opted for the rear entertainment.
  • I read that new owners of the 2007 Tahoes / Yukons are having issues with the Battery.....dying after little use of the acc position, from simple music, lights, movies, etc...this is a big hassle. Yikes! As a car-pool Dad, I am always turning the engine off, and listening to music, or the game, up to an hour, often. I was be very annoyed to get a dead battery for my trouble. I am in the market for the new truck, and when I went to Test Drive a new Tahoe LTZ, they couldn't get it started....surprise, surprise, the Battery had died! I think the dealer was rather embarassed. I am sitting on the fence now. Height concerns me, too.....my current Yukon XL with 16" wheels fit UNDERground in all parking lots, with ease...that 20" wheel LTZ beast may need to do more time outside? Any opinions?
  • Yes, I got my GM LOCKPICK GEN 2 last week and installed it this past weekend. I'm very happy with it but had a couple issues during installation. First, during installation I must have done something abnormal because the screen would not turn on. I deduced that I must have caused a short. After tracking down and replacing the 10 amp fuse for the radio (it was fuse #41 located in fuse box located under the hood of my '07 Chevy Tahoe LT3), everything worked well. However, during the first few hours of use I experienced some weird behavior (1. the rearview camera display would sometimes not work, 2. the display would sometimes lock until I restarted the car, 3. the voice prompt volume would somehow be set to zero). I only experienced this during the first few hours and haven't experienced ANY issues since. All in all I love the unit. I know Coastaletech also sells the "GM ONSTAR LOCKPICK" which unlocks Onstar for integration with aftermarket hands free kits. I'm not sure if both these "lockpicks" can be used simultaneously.
  • jjmjgnxjjmjgnx Posts: 34
    Hey ltzin, can you let us know how it goes at the dealer with all those things you're having them look at. I have those same exact issues. My battery died once, I jumped it an let it run for a few minutes and it's been fine since. Same battery. I heard the loud noise this morning since it was cold here in the northeast.
  • tommy4tor -
    It is not all owners that are having the battery issue - but it is well worth noting. I know that I have never had any issues with my LT3 and regularly let it sit with the engine off listening to the radio. The longest I can remember doing that for was when I was rotating the tires and installing the mud flaps - which being as I was in no hurry, took a nearly two hours. But had no issues (or ever have) with the battery going dead. :)
  • 4burb4burb Posts: 55
    I, like tuscotodd, have had no issues with my LT3 either. Also have the 20 inch wheels that the LTZ has and have had no garage issues either.
  • ltzinltzin Posts: 15
    Just got home from dealer, they put a new Battery in the old one was reading 12.65 volts with 33 cold cranking amps the cca should be 615. They could not find a draw on the batt. They replaced the rear door window mouldings, They could not find anything with the steering. I figured that, it was 55 deg when I dropped it off. And now this one surprised me, they found that the wiper switch has a short in it, they had to order that. They also did the ECM reprogram #06162 this reads on the invoice as follows: 06162 reprogram ECM for virtual flex fuel sensor update. On the way home it was extremly windy and I still noticed staying in 4v longer. Hope this helps some of you. Also if you create an account with GM (its free) you can go to my gm and it will let you know if your vehicle has a recall thats how I found out my needed the 06162 recall. I let you know if battery stays charged, also how my new Diablo Preditor engine tunner works.
  • I want to get the chrome handles, is it easy enough to do it yourself?
  • 4burb4burb Posts: 55
    2007 Suburban, can someone please confirm the rear bowtie is only held on with adhesive tape? I have removed all the lettering and would really like to remove the rear bowtie. I know how but want to make sure there are no holes there like there are on the back of my 4Runner when I removed the Toyota emblem.
    nacho07, I think you did this yourself when you replaced yours, just need to verify. Thanks
  • zepreszepres Posts: 16
    No it is not.
  • 73shark73shark Posts: 325
    The gold part of the bowtie is plastic and held on with trim tape to the chrome portion. The chrome portion is mechanically attached and removal leaves two holes in the plastic which would require filling. However removalal of the gold portion leaves just a chrome bowtie which closely resembles aftermarket billet ones.
  • catamcatam Posts: 331
    Do you know what tranny is used in the upgrade??
    I would be interested as long as I got the heavy duty tranny as part of the deal.
  • rshtrsht Posts: 277
    dlmart2, I have my 2007 Denali for about a month now. The answer is Yes, when we opt for the CD/DVD with MP3 (without the Navigation System), we lose the 6-CD changer. Disappointment, isn't it.....
  • Sorry, but no it is not a DYI unless you have a lot of time. The OEM handles require removal of the inner door panel, figure 1-2 hours per door, if you have never done this. I did mine, all 4, in about 2 hrs. The covers that tape on over the original handles might be easier. Good Luck.
  • My dad just bought a LT Tahoe. Is the car supposed to be in V4 mode when idling? it seems it rarely goes into V4 mode.

    Thanks.
  • Hey guys (and gals)...It's been a while since I've posted on the board here but thought I'd give an update on some issues that I had right out of the gate on my '07 LTZ Tahoe. I posted back in April of last year (post #677) in regards to some issues I had from the very first day I drove my new truck home :sick: ...Needless to say, I'm still having the same problems. :lemon:

    We just had the truck back in the shop on Friday to once again TRY and fix my issues with the ABS/Stabilitrac lights coming on and the "Service Traction Control" and Service Stabilitrac" warnings coming on the CID. This is trip #6 for the same issue that started back the night I drove it off of the lot.

    I have already filed the necessary paperwork with the state of Florida and will be heading down to the dealership tomorrow to discuss how we're going to resolve this issue. My desires are for them to give me a replacement vehicle...But from what I'm hearing they will most likely give me a full refund and tell me to go buy the truck somewhere else...We'll see.

    My question is...Has anyone else here had the issues with the ABS/Stabilitrac systems? I'm hoping that it's an isolated incidence with my vehicle...And if I do get a new one that I won't ever have to deal with it again.

    Thanks in advance for anybody who can tell me if they've experienced anything like this.
  • 73shark73shark Posts: 325
    Welcome to the V8/V4 world. From what I've read on forums and heard from Chevy and dealer, you'll only see V4 when coasting or going downhill. Those with 4.10 gears have reported some V4 mode on level road at hiway speeds. That's been attributed to placing the engine rpm in its "sweet spot". Ironically those with 4.10 gears are reporting better mpg.

    I've seen V4 at low speeds (30-45 mph) going slightly uphill in Tow mode but that's because it takes it out of OD and therefore the engine speeds up. Interestingly enough the mpg is better this way. Personally I think they should have made the V4 mode a little more aggressive.
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