Last post on Nov 07, 2013 at 4:11 PM
You are in the GMC Yukon
What is this discussion about?
GMC Yukon Denali, SUV
Go to NHTSA to file a safety complaint.
Or call Monday-Friday (8 am to 8 pm ET) (888) 327-4236 TTY: (800)424-9153
#286 of 1099 Re: 2004 GMC Yukon Denali(shorty) Drietrain/exhaust rattle [evans1]
Aug 08, 2005 (5:45 pm)
i have 2005 denali with 6000 miles. at 2000 miles i also started experiencing that annoying rattling noise, it almost sounds like a boat motor. it seems to go away after you get above 40 mph. but after getting to highway speeds if you let off of the accelerator and go back onto it you can definitely hear the growl/roar/rattle.
i have had it to the dealer twice in the last 2 weeks, they indicated that they adjusted a backlash device within the exhaust. it still is not right and for a 52k vehicle i will expect them to find the problem.
any experience, or comments on this matter would be helpful.
#287 of 1099 Re: 2004 GMC Yukon Denali(shorty) Drietrain/exhaust rattle [printer4]
Aug 09, 2005 (10:16 pm)
iIt may be a problem in the muffler. To fix it, they have to put on a new exhaust system. But, the fix only lasts about 30,000 miles.
#288 of 1099 Re: Whistling while stopped [ironreup]
Aug 11, 2005 (6:05 am)
Thanks for the information on the whistle. I took your information to my dealers repair shop and they fixed the problem no more whistle and its been about a month and 1500 miles
#289 of 1099 Re: Popping exhaust [lobsenza]
Aug 11, 2005 (6:15 am)
I think the pinging your are hearing is a result of the Stainless Steel exhaust system which was considered an improvement by GM the sound comes from expansion and contraction of the exhaust system system. my Denali only does the pinging when parked it is annoying but, the durability stainless steel over the aftermarket exhaust system seems worth it to me.
#290 of 1099 Re: Popping exhaust [rstafford]
Aug 17, 2005 (6:52 pm)
Why dont the stainless systems in other vehicles do the same thing? I think the internal pieces in the muffler are not properly fastened. Repeated heating and cooling causes the poor welds in the muffler to break. That is why replacing the exhaust system resolves the problem for a while. Mine is now doing more than popping, it is rattling.
#291 of 1099 Re: paint peeling on console [mmcdon]
Aug 18, 2005 (4:50 pm)
I have an 03 DENALI and the console is pealing and it only has 14500 miles, I took to the dealer for defaulty air bag sensor and just ask about it an they said 3/36 bumper to bumper warranty does not cover pealing paint. Any ideas
#292 of 1099 Re: paint peeling on console [mckele1]
Aug 20, 2005 (7:51 pm)
That definitely should be covered at that mileage. I would file a complaint at GM customer care and/or look for another dealer. I am having this problem on my 2001 DXL at 65,000 miles. It is my problem at that time.
#293 of 1099 Re: 99 GMC denali 125k slight bucking @ 45-55mph [reeftankguy]
Aug 21, 2005 (6:22 am)
I think I have figured out the problem. Its a stuck transmission control solenoid OBD2 code p0751. I will replace this part and update the forum if this fixed the problem.
Aug 21, 2005 (8:36 am)
I am considering installing an aftermarket PCM for performance. Does anyone have any suggestions and where is the PCM located on GMC's? Thanks for any input as I see about 9 mfg products out there. Have used Jet stuff before on other GM - with good results.
#295 of 1099 Re: 05 Denali [tcdallas]
Aug 21, 2005 (3:21 pm)
That depends on what you're trying to accomplish and if you're willing to diable the truck while waiting for the PCM you sent to be returned.