Last post on Dec 04, 2013 at 9:10 AM
You are in the GMC Yukon
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GMC Yukon, GMC Yukon Denali, GMC Yukon XL, SUV
#103 of 157 Re: 2002 GMC Yukon XL Denali Run/Idle Issues [conleyge]
Feb 11, 2011 (8:18 am)
Hello. I have a 2002 GMC Sierra Denali that i have had almost exactly the same problems with mine as with your. I have a 6.0(used) because the first one took water into the motor throught the intake and threw a rod out of the back of the block. Now the replacement motor is from a 2006 unlike yours which is from a 2005 but i have the same problem. It only happens when i put the gas to the floor(when it goes into passing gear) when it reaches close to the shift points and the rpms are close to their highest point it starts to stutter. Almost like its choking and it makes a kinda banging out noise on the rightside of the motor and the check engine will come on and start flashing but then eventually goes off. The easier i am on the truck for a week or two the less it tends to do it but the harder i am on it the more it will stutter. Were you ever able to find some help or anyone figure out whats causeing the problem? I had a chevy/gmc dealership tell me that their best GUESS was weak valve springs but its a 300 dollar guess. Im willing to spend money to get it fixed but i dont want to put money into something that might not fix the problem. I have changed the fuel filter and cleaned the infectors and also changed spark plugs but nothing has help.
#104 of 157 2003 Yukon Battery Replacement
Feb 12, 2011 (7:06 pm)
I just removed my battery today to replace the washer fluid res. , now once I have put the battery back, I am having idling problems, any help? It has always been fine, but now idles down to 200-300 hundred and has stalled twice at a stop light.
#105 of 157 Re: 02 Yukon XL stutters and stalls [yetirider]
Apr 16, 2011 (12:28 pm)
Did you ever get this problem resolved? I have a 2002 Yukon thats doing the same thing. While driving down the road at highway speeds the engine just quits. After a few minutes it will start up drive for a few miles and quit again. I just replaced the fuel filter and it was dirty but did not correct the problem.
#106 of 157 Re: 02 Yukon XL stutters and stalls [vosh2002yukon]
Apr 19, 2011 (9:32 am)
I was able to correct my Yukon XL's problems by cleaning the throttle body and mass air sensor. Your local auto supply store will carry cans to clean each of these areas. It is not difficult to do, just make sure you read the directions. Hope this helps. Good Luck
#107 of 157 high rpms
Sep 23, 2011 (10:28 pm)
can someone help me with this i started my 2003 Denali up early one morning to take my kids to school, the truck iddled as mif someone was sitting there slowly pushing down on the gas paddle. I drove it in high iddle to school but brought it straight back home because it wasn't dying down not even when i put on breaks. Can someone please help me with this one before the dealership rip me off
#108 of 157 Re: high rpms [jb04]
Sep 25, 2011 (5:46 am)
This sounds like a potentially dangerous situation. You need to determine if it is electrical or mechanical. By this I mean is it a sensor, like your TPS. Or is something hung up like your throttle cable. In either case, an engine that "runs away" can be very dangerous. I would ask around and take it to someone you can trust. Do you have a "check engine light" on? If so that would be helpful for your mechanic to make a quick diagnosis. You can purchase a diagnostic tool yourself to read the codes.
#110 of 157 05 GMC Denali won't start - good battery and alt.
Oct 20, 2011 (7:26 am)
I am having an issue with my 05 Denali. I went out to start it 4 days ago and got nothing, the door locks wouldn't even work. Took the battery and alternator in to get tested and both tested great. Put both back in and it started right up. Now I have the same issue again, any suggestions as to what the problem could be?
#111 of 157 Re: 05 GMC Denali won't start - good battery and alt. [jeremy_price]
Oct 20, 2011 (11:58 am)
I am not sure what could be causing your concern. Have you brought this to the attention of your local dealer? I would recommend contacting them to a diagnosis. Please feel free to keep us posted. Thank you.
Tricia, GM Customer Service.