harrisonlee
02-22-2012, 10:13 AM
Okay i have a 92 chevy k blazer and just put a brand new 700r4 in in with a used motor out of a older truck but should have no problems, it has been swapped back to the serpentine system. everything is hooked up and should be right it will start and idle fine but when you take off it wants to fall on its face and bog out. and if you can finally get it going and stay on the gas its fine getting up to speed and runs good until you let off to maintain a speed it also starts spittin n sputterin. you can take it out of over drive and put if in regular D and that seems to help since its keeps the motor at a higher rpm. could this be a gasket or vacuum leak? i think it might be in between the throttle body and intake but im only saying that because we have quadrouple checked everything we can think of, if you have any past exp. advice or suggestions please comment!!!!!!! thanks