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2007 and newer Chevrolet Tahoe and GMC Yukon

3125 messages,  Last post on Nov 27, 2009 at 6:32 PM

You are in the Chevrolet Suburban & Tahoe Forum. Your Hosts are steve_ & tidester

What is this discussion about? Chevrolet Tahoe, GMC Yukon, SUV


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#2748 of 3125
Re: 2007/8 Locking Differential [tidester] by blckislandguy
Sep 11, 2007 (6:27 pm)
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Replying to: tidester (Sep 10, 2007 8:56 pm)

Yes, Tidester, I'm sure that GM given all its resources must have some cutting edge technology. But it doesn't find its way into the product lines. Let me hit the highlights with examples relevant to this board: GM continues to use drum brakes on many vehicles including the pickups; the two valve head, small block Chevy has been around in various configurations since we fought the Korean War; only in '07,many years after everyone else, did GM finally put rack and pinion steering in the Tahoe and pickups; while other companies use a distinctly beefier frame for their 3/4 trucks, GM I am told uses the same frame as on the 1500 series on the 2500 series but adds one leaf to the leaf spring pack; side curtain air bags are standard on many, many 40K vehicles, not so with GM; to continue to use four speed transmissions on big SUVs and pickups that haul and tow is almost comical and is in no way appropriate for these vehicles, etc.
 
Clearly the General wants to limit the high tech content to limit the headaches, warranty claims, and added costs. That is their perogative. But they are not introducing or even using current technology in their vehicles.
#2749 of 3125
Re: Drum brakes [blckislandguy] by steve_ HOST
Sep 11, 2007 (6:47 pm)
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Replying to: blckislandguy (Sep 11, 2007 6:27 pm)

I like having rear drums - they last lots longer in my experience than discs. Plus they work a lot better than they did in the old days (but so do discs, compared to 20 years ago).
#2750 of 3125
Re: 2007/8 Locking Differential [tom213] by rockman59
Sep 11, 2007 (7:23 pm)
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Replying to: tom213 (Sep 11, 2007 8:40 am)

Interesting to note that Eaton says its G80 mechanical locking differential is the standard of the industry. Then they talk about how they have an electrical locker available for the Hummer. Sounds to me like they have come up with a solution to a non-problem. But probably a nice money maker for both Eaton and GM. I'll stick with the tried and true mechanical version.
#2751 of 3125
Re: Cricket noise [tripwire] by jerrya4371
Sep 12, 2007 (12:42 pm)
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Replying to: tripwire (Sep 11, 2007 11:08 am)

my 2004 yukon is making the same high pitch squeal...I got outside and listened and it's coming from the right rear near the tailpipe, yet when we turn off the a/c it stops. Mainly does it when sitting idle or accelerating. Help!!
#2753 of 3125
tampapi, rsht, brewboy by 4burb
Sep 12, 2007 (12:45 pm)
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I left this on the 07 Yukon Floor Mats thread as well...
For anyone that has the Weathertech Floor Liner system mentioned above does the third row section that comes up the aisle between the buckets bump up against the second row mat that goes all the way across or is there a gap between the two mats where they meet?
Thanks,
#2754 of 3125
Re: Drum brakes [steve_] by blckislandguy
Sep 12, 2007 (6:25 pm)
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Replying to: steve_ (Sep 11, 2007 6:47 pm)

Steve, I hadn't heard that drums worked any better than they used to. Don't they still get wet and lose their effectiveness in very wet conditons?
 
I do know that a basic brake job on any four wheel disc brake European car is going to cost you a grand before you drive home. On some cars such as Land Rovers, you will be spending this grand every 18,000 miles. So, maybe drums aren't so bad afterall.
#2755 of 3125
Re: Drum brakes [blckislandguy] by steve_ HOST
Sep 12, 2007 (7:23 pm)
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Replying to: blckislandguy (Sep 12, 2007 6:25 pm)

I don't always agree with Karl, but I like this article of his.
 
"the truth is that today's disc/drum setups are completely adequate for the majority of new cars. Remember that both disc and drum brake design has been vastly improved in the last 20 years. In fact, the current rear drum brake systems on today's cars would provide better stopping performance then the front disc setups of the '70s. And today's front disc brakes are truly exceptional in terms of stopping power. Combined with the fact that between 60 and 90 percent of a vehicle's stopping power comes from the front wheels, it's clear that a well-designed, modern drum brake is all that's required for most rear wheel brake duty."
 
Brakes: Drum vs. Disc
 
I've done front discs recently and but haven't done any rear drums since back in the mid-70's. The big issue for me as a sometime d-i-y'er is that the rear discs are sometimes screwy because of the parking brake mechanism back there. I don't remember the rear drums being all that easy either though.
#2756 of 3125
Re: Cricket noise [jerrya4371] by reggie6
Sep 13, 2007 (12:23 pm)
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Replying to: jerrya4371 (Sep 12, 2007 12:42 pm)

I had the exact noise from my 04 denali xl. After numerous visits to the dealer we finally fixed the problem. It was the rear ac motor unit. It was replaced under warranty and no more noise!!
#2757 of 3125
2007 Denali comments by reggie6
Sep 13, 2007 (12:37 pm)
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I just leased a new 2007 Yukon Denali xl, came out of an 04 Esclade ESV on a pull ahead program from GMAC. I was way over on miles. So far, I am having mixed feelings about this SUV. On well paved roads it handles beautifully and has a more solid feel than the old platform did. If you encounter any rough pavement though....watch out! The rear suspension stinks! I have to drive extra slow if I have passengers because I am embarrased how it takes bumps.
 
Also, I don't like having to reach behind me to adjust the rear a/c controls. They used to be on the top by the sunroof controls. You can't tell a 3year old or a dog to turn the a/c up or down!
 
Gas mileage was better on my 04 esclade which had better acceleration at 14 mpg avg, here I am only getting 12.9 ( but I only have a couple of thousand miles, so I have to let the break in period be taken into consideration)
 
I like the rear camera, but it takes a long time to come on and my Mother's Nissan Murano has a much more accurate view with guide lines to show the actual car and it's pathway, I find this system to be inaccurate except to see if something big is behind you.
 
Another dissapointment is the hard to read gauges and especially the fuel gauge, once you near empty it drops all the way and have no idea how much gas you have left.
 
Lastly, the seats don't fold flat and you loose what used to be a big great flat cargo hold...
 
I would have loved to wait to see the new Sequoia, but I needed to get out of my lease. Oh well... hopefully it will be as reliable mechanically as my last one was!

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