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GMC Yukon / Yukon Denali

3260 messages,  Last post on Apr 28, 2009 at 7:02 AM

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What is this discussion about? GMC Yukon Denali, GMC Yukon, SUV

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#2994 of 3260 Re: '02 vs '05 Denali [kshadek] by acefield Oct 03, 2005 (4:38 pm)
Replying to: kshadek (Sep 26, 2005 11:12 am) I recently bought a 2005 Yukon SLT replacing a 2001 SLT with the exact same 5300 Vortex engine and similiar equipment. My 2001 had considerably more power and acceleration; ran strong. The 2005 is a total dog...Very poor acceleration, feels underpowered, etc. I can't figure it out except that maybe GM has changed something in the computer (timing advance...) to tweak more gas mileage out of it. I loved my 2001, but am quite disappointed in this new one. Am taking it to the dealer this week. Replies to this message: circutmann (Oct 04, 2005 9:14 am) acefield (Oct 06, 2005 3:09 pm) beach15 (Oct 07, 2005 12:17 pm) arrie (Oct 08, 2005 8:05 am)
#2995 of 3260 Re: '02 vs '05 Denali [acefield] by circutmann Oct 04, 2005 (9:14 am)
Replying to: acefield (Oct 03, 2005 4:38 pm) Check the rear end (axle) gear ratio of the 05 & that of the 01. My guess is that you probably had 3.73 gears in the 01, and have something much lower numerically, like 3.42 or 3.21 in the 05. The lower numeric ratio should give you better fuel economy on the road, but has less accelleration & towing capacity. If the gear ratios are the same, then I would definately suspect some other problem, as I believe the 05, 5.3L engine is rated at more HP than that of the 01.   I currently have an 01 YXL w/ the 5.3L & 3.73 gears & have been satisfied with the performance. My 01 was rated at 14/16 MPG, & I bet your 05 is rated much higher. I even tow a 34' travel trailer, weighing in excess of 8000 lbs w/ no problems. I know I am pushing the limit, but I had the 01 YXL before we upgraded to the bigger trailer. Next time I'll probably go with a 3/4 ton & 4.11 gears for more towing capacity. Enjoy your new truck, & hopefully better fuel economy.   Good Luck, Dave Replies to this message: acefield (Oct 06, 2005 3:09 pm) beach15 (Oct 07, 2005 12:17 pm) arrie (Oct 08, 2005 8:05 am)
#2996 of 3260 Re: Denali Nav System, Lights [cornellpinoy] by tdoh Oct 04, 2005 (11:24 am)
Replying to: cornellpinoy (Oct 03, 2005 4:00 pm) I assume you mean that the SS fog bulbs are hard to come by, as opposed to asking if such bulbs exist...in which case, you just gotta search a bit harder. Replies to this message: cornellpinoy (Oct 04, 2005 5:13 pm)
#2997 of 3260 Re: Denali Nav System, Lights [tdoh] by cornellpinoy Oct 04, 2005 (5:13 pm)
Replying to: tdoh (Oct 04, 2005 11:24 am) That is what I meant - haven't seen SS fog bulbs at any of the auto parts stores I shop at. Not really a big issue for me since I rarely use the fog lights.
#2998 of 3260 '07 roll out by steve_ HOST Oct 05, 2005 (10:27 am)
GMC Pulls Wraps Off Redesigned 2007 Yukon (Inside Line)   Steve, Host
#2999 of 3260 NAV system software ? by gipper2nd Oct 06, 2005 (10:23 am)
I own an '03 Denali with the Nav system. I would like to update the map C.D., but almost choked when the dealer said the cost was $375.00 for a new C.D. Anyone know where to get one other than the dealer? P.S. the one that came with the car was dated 2002. Replies to this message: tdoh (Oct 12, 2005 9:03 am)
#3000 of 3260 Re: '02 vs '05 Denali [circutmann] by acefield Oct 06, 2005 (3:09 pm)
Replying to: circutmann (Oct 04, 2005 9:14 am) Thanks a-lot. You are apparently correct. I don't recall the axle ratio in my "01, and I no longer have the papers. However, my "05 has a 3.42 gear ratio has you suggested, which is quite low. I bet this is a lot of the problem, but I still think something else is different perhaps in the timing or timing advance, because I still have a very unresponsive accelerator and it sputters and coughs at low speeds such as 1st and 2nd gear. Still awaiting the evaluation from the dealer. I greatly appreciate your input. Happy trailering!   Charles Replies to this message: beach15 (Oct 07, 2005 12:17 pm) arrie (Oct 08, 2005 8:05 am)
#3001 of 3260 '00 Denali Turn Signal Problem??? by blackstang Oct 06, 2005 (7:30 pm)
Turn signal combination relay keeps clicking even after the turn signal is off. I changed the relay and it still does it, what would you guys suggest? Any help is much appreciated 2000 GMC Yukon Denali 4x4 5.7 Vortec
#3002 of 3260 Re: '02 vs '05 Denali [acefield] by beach15 Oct 07, 2005 (12:17 pm)
Replying to: acefield (Oct 06, 2005 3:09 pm) Another difference between your '01 and '05 would be the accelerator itself--it was the typical cable-controlled system through '05, and then switched to a computerized throttle for '03+, which basically means you're now stepping on a computer sensor of such that attempts to open the throttle to the level it thinks you want.   We went from an '02 Avalanche 1500 2wd Z66 with the 5.3L and the 3:73 axle to an '04 Suburban 1500 2wd also with the 3:73 axle, and I've noticed very little difference between the two in feel--in all honesty, the Suburban has the same level of grunt, more accelerates more smoothly because of the electronic throttle. With the older style on the Avalanche, it would often buck and roar like a bronco if you didn't keep your foot 100% steady--the Suburban's pedal compensates for that and smooths things out a bit.   Another change in '05-06 models is electric fans, but that actually should make it feel MORE powerful because of less draw on the engine than the old mechanical fans.   Then again, if your new '05 "sputters and coughs" something else might definately be wrong.
#3003 of 3260 Re: "Stolen" Keyless Entry Remote - Solution? Help! [berob] by arrie Oct 08, 2005 (7:16 am)
Replying to: berob (Sep 01, 2005 10:39 am) I thik the remotes CAN be re-programmed. You buy new remotes and at the GMC or Chevrolet dealership they teach the car what remote frequencies to work with.   I assume they can disable the original frequency too.   I think you were misinformed as it would be stupid if GM would build cars where the remote frequencies could not be disabled as you must not be the only person who had keys lost/stolen, but of course, I'm not 100% sure...   Arrie

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