I have a 92 Suburban 5.7 that drives great cold but once it is warmed up it hesitates at idle and when under pressure. Feels like off-roading but no strange noises. It feels like it is choling when on the gas and has a hard time getting up to speed. I have replaced all the spark plugs and checked the air filter. Is this a common problem with a possible common solution?
Dec 9, 2011 at 8:23 PM