Yukon low power

Last post on Jan 16, 2009 at 10:21 AM

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

#1 of 1 low power by ben04 Jan 16, 2009 (10:21 am)
hi i have an 02 yukon xl 2wd with 70k miles,it idles a little rough but its not that noticable,my real issue is when its at operating temp it looses power and doesnt feel like it shifts right when im doing 60 in 4th gear and want to pass it goes to third then quickly back to 4th any advice would be great..oh and its the 5.3 w/flex fuel and i only run premium fuel