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2007 and newer Chevrolet Tahoe and GMC Yukon

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

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

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#2374 of 3125 Re: My '96 Yukon vs 07' Tahoe gas mileage [saratogalake] by tidester HOST Mar 10, 2007 (1:53 pm)
Replying to: saratogalake (Mar 10, 2007 9:56 am) At 25,000 miles your engine is probably as "broken in" as it's going to be. Have your driving habits changed? Did you make all those trips at the same time of the year (i.e. winter as opposed to Fall or Summer)?   tidester, host SUVs and Smart Shopper
#2375 of 3125 Re: My '96 Yukon vs 07' Tahoe gas mileage [saratogalake] by muskyhunter Mar 11, 2007 (7:50 am)
Replying to: saratogalake (Mar 10, 2007 9:56 am) I believe your 96' and 07' Tahoes were completely different animals in many ways. First the motors are totally different. Your 1996 likely had a 5.7L pushrod iron block motor. The 2007 has an alum. non-pushrod motor that is only 5.3L and does not perform as well in the middle of the power curve as the old 5.7L motor, likely causing you to be heavier on the pedal. The specs are totally different too including 400lbs of additional weight. Something else to consider is fuel. Much of the fuel we burn today has ethonal, not very common in 1996. 1996 - 5134lbs 2007 - 5524lbs 1996 - 250hp/335fpt 2007 - 320hp/340fpt 1996 - EPA Est. 13/17 2007 - EPA Est. 15/20   Count yourself lucky with 19mpg. Not many are getting anywhere close to that. Replies to this message: denman (Mar 11, 2007 12:12 pm) jerrywimer (Mar 12, 2007 3:49 am)
#2376 of 3125 Re: My '96 Yukon vs 07' Tahoe gas mileage [muskyhunter] by denman Mar 11, 2007 (12:12 pm)
Replying to: muskyhunter (Mar 11, 2007 7:50 am) The 5.3 is also a pushrod engine. Some are iron blocks and some are aluminum blocks.
#2377 of 3125 Re: My '96 Yukon vs 07' Tahoe gas mileage [saratogalake] by rockman59 Mar 11, 2007 (8:05 pm)
Replying to: saratogalake (Mar 10, 2007 9:56 am) Saratogalake said: I was able to go almost 600 miles on a tank of regular gas ____________________________________________________________ Assuming your '96 Yukon had a 40 gallon gas tank like a Suburban, you were averaging about 15 mpg to go 600 miles. Replies to this message: saratogalake (Mar 12, 2007 3:12 am)
#2378 of 3125 Re: My '96 Yukon vs 07' Tahoe gas mileage [rockman59] by saratogalake Mar 12, 2007 (3:12 am)
Replying to: rockman59 (Mar 11, 2007 8:05 pm) Rockman59, My '96 Yukon had a 28 gallon tank which I believe is the same size I have in my '07 Tahoe. I was able to squeeze almost an extra gallon if I filled it right up to the top of the filler neck.. I have kept a log on all my vehicles for the past 30 years. I enter the mileage, trip odometer mileage, amount of gas taken, brand, cost per gallon and then figure the MPG. It's very interesting to see the trends in gas prices over the years.. Steve
#2379 of 3125 Re: My '96 Yukon vs 07' Tahoe gas mileage [muskyhunter] by jerrywimer Mar 12, 2007 (3:49 am)
Replying to: muskyhunter (Mar 11, 2007 7:50 am) I was getting ready to reply about the engines too- the 5.7 is a 350 ci, while the 5.3l we have now is really more like a 325 / 326 (would probably be labelled a 327 if GM still used the ci notation instead of the liter size for displacement).   But you've made extremely good points muskyhunter.   Saratogalake- If you could've bought the same drivetrain we have now in that Yukon as an option back in 96, I'd bet that it would be better for overall fuel efficiency than the 5.7l. The fuels we use now combined with the extra weight of the new generation of these vehicles usually means that most of us are just seeing break-even numbers for economy, if that. Chop the extra weight out and get back to completely non-ethanol gasoline blends and things improve quite a bit. I've actually seen at least a 2mpg difference in mileage just between pure gas versus 10% ethanol blend gas with the one vehicle I owned and was able to use both in back to back.   But as a final note- it's not the midrange where the 5.3l suffers against the 5.7l, as the mid and high end is where the 5.3l makes the most power (and why it is rated as much stronger than the 5.7l for both horsepower and torque numbers). It's the low end, where the 5.7l would gladly leave the line carrying twice the payload without a single groan, the new generation of smaller displacement engines needs extra-low gearing and a heap of throttle to even come close. Our new engines need to spin at a higher rpm to make the same torque and horsepower, while the 5.7l could be geared higher (and spin slower) at just about any speed and load. I'd personally like to see a real successor to the 5.7l available with some of the updates that the 5.3l has, though maybe that's what the 6.0 is now?
#2380 of 3125 BRA by tony97gt Mar 12, 2007 (8:30 am)
I am getting some scratches from road debris and stains from bugs on my front bumper. Also, I am going on a road trip in about 2 weeks.I am looking to get a bra for the front bumper, as my truck is only a weekend/spare vehicle and spends most of it's time in the garage. Does anybody have reccomendations for a black LeBRa or the new clear versions? Any prices or compliments/complaints on these would help. Thanks!   PS- I have the 2007 LT3 model, Dark Blue. Replies to this message: 73shark (Mar 12, 2007 9:00 am)
#2381 of 3125 Re: BRA [tony97gt] by 73shark Mar 12, 2007 (9:00 am)
Replying to: tony97gt (Mar 12, 2007 8:30 am) You might consider the 3M clear film.
#2383 of 3125 Re: 07 Yukon with problems [aron2] by rsht Mar 15, 2007 (2:30 pm)
Replying to: aron2 (Mar 08, 2007 7:10 am) Just a couple of days ago, I sent my Denali in for the recall #07007 repair. My service department not only reprogrammed the BCM, the RCDLR and RKE Modules, they also gave my Denali a good wash and wax job. All were done within 90 minutes. I couldn't be happier with my Village Pontiac's services.

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