Every time the truck shifts into overdrive, it sounds like its puttering around. If i try to step on the gas a little bit, it does like a jerky jump to it and then continue to putter unless i floor it so it will drop in gear. Only happens in overdrive. Also another issue i have been having is with just flooring it.. Its definitely losing a lot of power the way its running. At first the would not even get going when i stepped on it. It would just whine and make loud popping noised out the exhaust. I changed the spark plugs and its now at least kicks in but what it does now is like a hesitant start, like a jolty motion and really poppy sounding when i really get on it.. There's a rattling sound that is coming from the supercharger. I've tried reading up for the rattling noise and i am guessing its the bearings because it sounds like its coming from the back on the supercharger.. the truck only has 55k miles and i don't see why it would be having so many problems with it. Thanks for the help

 

check fuel pressure now !!

 

agree check fuel pressue. what did the plugs look like? Take the belt off the blower and see if it still makes noise, if not then blower gonna need a rebuild

 

fuel pressure, plugs, fuel filter, codes?