2000YukonSLE
Member
hey guys, new here and glad i found the place. Ive searched through the forums for this topic and havent really come across anything. Anyway i just purchased a 2000 Yukon SLE newer body style with the 4.8L 4x4 etc nothing special. Installed a set of 20in rims and tires and a spectre 9900 cold air intake. Every morning i get in my ride to go to work and it rides good, seems to have plenty of pep. Later on in the day when i run out somewhere or go home, the truck seems very sluggish. Feels like its straining just to accelerate but i have no check engine light on. I have the hard shift from first to second and put some lucas in it and it seemed to help that issue somewhat, still a firm shift but not hard. Could this be a trans issue? Also, i have a very loud exhaust leak coming from somewhere, sounds like its right under the drivers seat, will an exhaust leak cause me to lose power? Is it because i have an intake with no exhaust yet? Any help would be greatly appreciated and I know some of you will prob say its because its a 4.8 lol but for the price i got it for i cant beat it. Thanks