Question about 2003 GMC Yukon Denali
I would take a close look at the MAF sensor. Cleaning or replacing it should solve your problem. Just in case you are using an oiled air filter this is the cause of the dirty MAF sensor. Stop using an oiled filter and switch back to a conventional filter. You may also have a vacuum leak downstream of the MAF sensor. Either of these problems will cause a lean condition. Clean the MAF sensor with brake cleaner or a good electronic cleaner. I suggest you remove it to give it a good cleaning. Be careful not to damage the sensor while cleaning. Check all the vacuum hoses and replace as necessary. Do them one at a time as to not get confused.
Posted on Jul 16, 2010
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Oct 01, 2014 | 2003 Jaguar X-Type
Jul 26, 2014 | 2003 Ford Explorer
May 09, 2017 | BMW 325Ci Cars & Trucks
Dec 12, 2011 | 1995 Nissan Maxima
Oct 15, 2011 | 2003 Kia Sedona
Aug 06, 2010 | Hyundai Elantra Cars & Trucks
May 13, 2010 | 2003 GMC Yukon XL
Dec 02, 2009 | 2003 Chevrolet Tahoe
Dec 16, 2008 | 2003 GMC Yukon XL
Aug 10, 2008 | 2000 Chevrolet Silverado
Feb 19, 2018 | 2003 GMC Yukon Denali
124 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: