Engine Performance problem
1996 GMC Yukon V8 Four Wheel Drive Automatic 150,00 miles
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My yukon is hesitating when I hit the gas. It started doing this about a week ago. It would run okay for 20 minutes then I would get hesitation on exhaleration. Now it is to the point that I can barely get it to do 20 mph when I take off from a start. It then goes slow and comes up to speed very slowly. What could this be?