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Pricewise, TNR units go for around a little over a grand on eBay (when someone offers one for sale) and $1670.22 at gmpartsdirect.com.
I have heard there is a "metering" adjustment needed. If so, is this an easy fix? And, how do you access it? Thanks for the help.
Our '98 Pontiac Grand Prix with trip computer consistently shows fuel used to be exactly what is pumped (w/fill up) at the gas station.
FYI, I have a 04-BMW that is showing a mpg calculation difference of 4-5 mpg. Now that is a problem.
As you say, toping off the tank could also be a factor. I live in Oregon where it has been determined that we are not competent enough to pump our own gas ... state law prohibits. So that factor is out of my control.
Steve, Host
Isn't government great? Do they let you wash your own windows?
I live in a neighboring state (CA) and not that we are any smarter, but our gas station attendants, in most cases, lack the skills to perform this task. In fact, most don't even speak the language that we could communicate to them how much gas we wanted.
I like your idea of the 2 year program. Maybe we could start it out with the folks at the capital (Salem) where all the great inspiration originates.
Windows washed? Check your oil? Tires? You bet! Just remember to bring your own water, rags and air compressor w/generator. You're lucky if they get your gas in a timely manner.
I think the state pushed the no self pumping in Oregon to create jobs during one of the many recessions. (Sort of like all the make work jobs in Europe)... or on the conspiracy theory side, it's Multnomah county's way of trying to encourage more people off the road by making them wait for someone to notice them and come out to fill their tank....
Steve, Host
-Will
I wonder if any one out there have had the same problem? If so, please post your repair or TSB if any.
I will post a repair details if the dealer can fix it. Stay tune... and thank you for reading this. Thank you forums.
Bulletin No.: 04-08-48-003
Date: June 14, 2004
TECHNICAL
Subject:
Windrush Around Windshield (Install New Windshield Reveal Moldings)
Models:
2002-2004 Cadillac Escalade
1999-2004 Chevrolet Silverado
2000-2004 Chevrolet Suburban, Tahoe
2002-2004 Chevrolet Avalanche
1999-2004 GMC Sierra
2000-2004 GMC Yukon, Yukon XL
with Hood Air Deflector
Built Prior to the Build Dates shown.
Plant Build Date
Pontiac Assembly 12/17/03
Flint 12/19/03
Ft. Wayne 12/15/03
Oshawa 12/17/03
Condition
Some customers may comment on noise coming from the windshield and door area.
Cause
This condition may be caused by the installation of a hood air deflector. The deflector may change the path of the air across the vehicle, causing the left side and right side windshield reveal molding to make noise.
Correction
Replace the left and right side windshield reveal molding. Refer to the Windshield Side Reveal Molding Replacement procedure in SI.
Parts Information
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use the table.
systems for the 6.0. Considering a Flowmaster
or Spintech but am concerned with resonance
issues.
The Firestones seem to be lasting pretty well. Typical, since I can't wait to get rid of them.
http://www.corsaperf.com/flashdenali.htm
Got one installed. All stainless, a bit pricy, and to me worth every penny.....
Thanks in advance for any responses.
The big trick for me was to add two pipes (one each side). Slide the spare tire back toward the bumper by remounting (put the hoist through one of the spokes and use a 12" bolt with washers to fasten the other end to the frame. There is a hole in the frame that allows you to do this).
Works easy on a XL - gives you enough room to run a second pipe between the rear axle and the tire.
My buddy did it on a non-XL which was a little more tricky, we got a slightly smaller tire, then did the same thing. He had 20's on his ride, so the slightly smaller tire was not a huge deal, but in case of a flat, you don't want to run on it very long or at very high speeds due to the AWD.
My big concern on the second pipe was I did not want to run it too close to the brake lines. I used the insulation on a couple parts just to insure no problems. I also added it above the resonators and muffler to make sure I did not get any noise. Probably not necessary, but if you buy a sheet of the insulation, you might as well use it.
The Site Directory is helpful for finding everything.
tidester, host
Whoops--I didn't read closely enough...you were looking for a complete system vs. just a muffler (the above is for muffler only); however, if cat-back isn't that critical to you, I'm sure you can get a more custom setup if you just get the muffler w/ custom piping and tips for a lot less than a complete cat-back package.
Don't get me wrong--if I had the money I'd probably get a Corsa too...but since I have to allocate my vehicle add-on funds judiciously... ;-)
The doc also references the following vehicles 03-05 Chevrolet all full size trucks and utilities; and 03-05 GMC and Cadillac all full size utilities and 03-05 Hummer H2.
If you locate a retrofit I would be interested.
Thanks Ken.
About 6 months ago; I started noticing an exhaust rattle (sounds like marbles rattling on a metal tray) - only after it is up to full operating temp; and only after I drive at least 3-5 miles at 40+ mph. (I guess that gets the exhaust hot enough to cause whatever it is to rattle). The rattle occurs when I slow down (I notice it in the 15 to 35 mph range).
Being that it only occurs when the exhaust system is really hot; it's hard to troubleshoot! In other words, when I pull it into my local mechanic's shop and they put it on the lift, they can't get any rattling out of it at all - even when they shake and pull on every exhaust component.
The only thing that makes even a bit of a rattle is one of the cat converters, and that is if you "beat on it" with a gloved hand while it's up on the lift.
This rattle is slowly getting worse. What are my options? I don't trust my local GMC dealer, since they tried to bilk me out of $2,000 in "routine maintenance". But my local independant mechanic is stumped. He's thinking that replacing the entire "Y pipe" that comes down from the engine and has both cat converters (all one piece) should definitely fix it, because he thinks the noise is coming from one of the cat converters.
Anyone else with this problem? Any advice would be greatly appreciated.
NOTE - This is not the rattle that you hear at idle with the AC on. That doesn't bother me. And this is not the "pinging" noise you hear when you shut off the truck. This is a very loud metallic rattling noise that sounds like it's coming somewhere between the middle and the rear of the truck.
If I had a TSB # to take to the dealer; that would be a big help.
I could go to my local NAPA store and get a lifetime warranty muffler, and then get my local independant mechanic to install it. That shouldn't cost an arm and a leg. Then if that doesn't do the trick; it would almost have to be one of the catlytic converters making the noise internally.
I'm pretty sure we both have the exact same noise by the way you are describing it. I've also become an expert at getting it to make the noise! The only problem is; once I stop the truck (even for only a minute or so) - it cools down enough to where you can't get it to rattle anymore!
Arrrgh. But I can't really complain, I've owned it since it was new; and I've never had any problems at all, so I guess a minor exhaust rattle after a measly 100,000 miles isn't too much to worry about
-------------------------------------------------------------------
[Regarding TSBs relating to exhaust rattle in '00 Yukon:]
Could be this one:
Component Description:
36. ENGINE AND ENGINE COOLING Bulletin Number: 3121
Bulletin Date: JAN 2004
Vehicle: 2000 GMC Yukon
Summary:
EXHAUST VIBRATION RESONANCE OR MOAN. (2004-2005 GMC DENALI) *SC
Or this one:
Component Description:
76. ENGINE AND ENGINE COOLING:EXHAUST
SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE Bulletin Number: 020605005A
Bulletin Date: DEC 2002
Vehicle: 2000 GMC Yukon
Summary:
EXHAUST / MUFFLER HEAT SHIELD RATTLE, POPPING NOISE UNDER VEHICLE. *TT
I'm not sure which one it might be--there may even be others I missed.
In general, you can find your TSBs and recalls through Edmunds'
'Maintenance' pages. Just go to edmunds.com, click 'Directory' in the upper
right corner, and click on 'Technical Service Bulletins.' This will take
you to a page that will allow you to pull up customized maintenance
info and TSB/recall info for your vehicle. This is one of Edmunds' best
and most under-appreciated features, in my view.
As to what the specific fix was...I think they actually had to replace
the muffler as it may have been an integral heat shield or internal
baffle. I'm not sure and didn't really ask, since it was taken care of
under warranty.
What the service manager at my dealership (Barlow GMC/Pontiac in Woodbury, NJ, which I recommend highly!) did was let me come in with the truck
warmed up so it was doing it, and then take a drive with me so he could
hear it--I'd gotten pretty good at getting it to do it by then--and
then he got out of the truck, had me hold the brake down and rev it to the
rpm range that caused it so he could hear it from outside and get a
better idea of where it was coming from. He may even have gotten it up on
a lift later and repeated this sort of procedure while listening
underneath the truck to pinpoint it further.
I don't think the approach of shaking things by hand will work to find
it; I think it's a 'sympathetic vibration' type of thing that only
happens at certain rpms (at least that's the way my truck was).
Good luck.
Also, is there a fused/switched circuit that is easy to tap into?
What about power? Is there an easy switched source or do I need to hookup a relay setup off of the DAB?
GM straps around the muffler , thinking it was a heat shield problem, we
discovered it was a loose pipe connection in the pipes before the muffler.
Since the fitting was fully tightened we spot welded it and the noise went
away.
As to the 'dashboard lighting up', it's the first I've heard of it, and I read here pretty frequently...where did you see these 'so many posts' you refer to? Does anyone else who frequents this board know what he's talking about?
M.
However, I have read that GM is pushing forward the intro date on the new full size SUVs (GMT900) and wants them in dealers by Jan 1 2006.
I'm eagerly waiting to see the next generation and whether or not the Denali and Escalade will actually be getting V10s as some are speculating. I'm still smitten with my '02 though! Definitely a keeper for me.