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GMC Yukon Noises and Sounds

79 messages,  Last post on Nov 13, 2009 at 12:14 PM

You are in the GMC Yukon Forum. Your Hosts are steve_ & tidester

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

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#6 of 79 Re: 2004 Yukon-popping noise when turn [iipacfan] by tidester HOST Jan 30, 2007 (10:11 pm)
Replying to: iipacfan (Jan 30, 2007 10:13 pm) I recommend turning off your CAPS LOCK. People tend to ignore message typed in ALL CAPS.   tidester, host Replies to this message: 02xldenali (May 13, 2008 10:44 am)
#7 of 79 2001 Yukon XL Popping from the front Differential by bradway Nov 03, 2007 (9:10 pm)
I have developed a "Popping" noise that comes from the front of my XL Denali when making sharp right and left turns. The dealership recommended changing the fluids (which we did) and the sound still persist. I had already put new CV shafts on both sides which also did nothing to cure the problem. The service tech said it may be a "Carrier Bearing" in the front differential. Has anyone else come upon this problem? If so what was the fix. Replies to this message: obyone (Nov 04, 2007 11:35 am) carterchapman (Jan 29, 2008 6:26 am)
#8 of 79 Re: 2001 Yukon XL Popping from the front Differential [bradway] by obyone Nov 04, 2007 (10:35 am)
Replying to: bradway (Nov 03, 2007 10:10 pm) Does this happen both forward and reverse? slow speeds? If so, it could be a loose cross member. Is it felt in the steering? Could be in need of a replacement intermediate steering shaft. More details would help.
#10 of 79 What's the noise I hear when I open the door? by 10mikeymike Jul 25, 2007 (2:46 pm)
I just took delivery of a new 07 Yukon Denali. It has the navigation system and every time I open the door, I hear a faint sound like an autofocus camera focusing. The only thing I can think it is would be the navigation system rreading the disc, but the vehicle isn't running. Has anyone else noticed this? Replies to this message: valvestud (Jul 25, 2007 6:25 pm) mikestgerm (Dec 08, 2007 1:59 pm) gaserup (Feb 22, 2008 8:06 pm) truemoxy (May 07, 2009 8:35 am)
#11 of 79 Re: What's the noise I hear when I open the door? [10mikeymike] by valvestud Jul 25, 2007 (5:25 pm)
Replying to: 10mikeymike (Jul 25, 2007 3:46 pm) Anytime you open a door on the vehicle when it's been sitting for some time, the NAV unit spins up and gets ready to do it's thing. It will also run for a while after shutdown.
#13 of 79 Engine noise Heard inside and outside 04 YUKON by gmclover Dec 12, 2006 (9:21 pm)
I Have a problem with some sort of engine noise which my friend said sounded like the Injectors, so I had them cleaned today! Wasn't the problem. Could it still be somthing to do with them? It sounds as if a helicopter has landed in my engine, NO kidding. Doesn't do it when it's first started but after about 30 mins and it's nice and hot you hear it loud and clear! My service advisor said it was "normal" RIGHT! It also gets louder with when raising RPMs in parked position. My husband is deployed to Iraq and I'm burnt out of getting no where! I had a belt replaced about 4 weeks ago. Before this happened. I'm trying my best to do this on my own, I have no choice, I don't like the dealership here locally but next one is 1 hr away. My service advisor back in TN always made sure any problem I had got fixed, and didn't push me aside. But stationed here in KS now....Someone also suggested cracked exhaust manifold? I just need some help here, also it seems to be when parked it idles rough/shaky since having the injectors cleaned?????? Replies to this message: rymr2000 (Feb 04, 2007 1:35 pm) rsht (Feb 10, 2007 3:48 pm)
#14 of 79 Re: Engine noise Heard inside and outside 04 YUKON [gmclover] by rymr2000 Feb 04, 2007 (12:35 pm)
Replying to: gmclover (Dec 12, 2006 10:21 pm) I don't know about a helicopter noise, but if it sounds like a prop airplane trying to take off when you raise the rpm of your vehicle when the temp is nice and hot than, believe it or not, this is normal. Your motor has a cooling fan that is attached to a fan clutch that is thermistaticly controlled. When your motor/radiator get to a certain temp then it will engage and cause your fan to turn close to the same rpm as the motor. When it cools down the clutch disengages and the fan turns at a fraction of the speed of the motor. If you want to test if this is the noise, than let your engine get nice and warm to were you hear that noise than bring your rpm up to about 2500 rpm (in park) and hold it. depending on the outside temp the noise should go away as the radiator gets cooled off and the fan clutch releases. A way to speed up the process is to "mist" some water in front of the radiator and it will do a swamp cooler affect and cause the fan to disengage faster.   As far as your rough idle after your injector flush, I would run a tank of good quality gas though it and than see how it runs. They may have put in a tank additive. if you still have a rough idle, than take it back.   Hope this helps, and that your husband makes it back soon!
#15 of 79 Re: Engine noise Heard inside and outside 04 YUKON [gmclover] by rsht Feb 10, 2007 (2:48 pm)
Replying to: gmclover (Dec 12, 2006 10:21 pm) gmclover, hopefully by now your 04 Yukon is all fixed and running normally... If so, can you share what were the problems and the fixes?   Anyhow, it is possible that during the process of removing and installing a fuel injector, so dirt may gotten in to the fuel rail or one of the injectors and caused the rough idle... assuming each injector was properly cleaned. Just a side note, if I'd to clean the fuel injectors I would also replace the fuel filter too(unless the filter in built in with the fuel pump inside the fuel tank, then forget about it).   I had a (small) cracked exhaust manifold once, I am not sure if I would describe the noise as a landed helicopter (sounded a bit flat, in my case it sounded more matel-ish, higher pitch); anyway, there was certainly loud Ticking sound when the engine was hot, shifter in Park or at low RPM with no load to the engine... Are you able to tell if the noise is coming from which area of the engine (e.g. top center close to the Intake Manifold, Right/Left front/rear close the valve cover, or front center close to the fan belts, and etc...)?

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