Guys/Gals,

Got an issue with my '05 4.4 X5. When I start her up in the morning and place her in reverse to back out of the garage, as soon as i start going back the truck starts to 'buck' back and forth. It has done this maybe once a week for several months but always goes back to normal after about 5 to 10 seconds.

Yesterday it did it again, but this time the 'check engine light' came on. It flashed for a few seconds and now it is on solid. Anybody experience this condition before?