I have a 2000 GMC Sierra 1500 5.3 and I recently changed the IAC and the TPS and cleaned the egr and maf sensors and it fixed the problem of rough idling and sputtering. Now after doing all of that sensor work it now feels like the throttle gets stuck when I slow down and come to a complete stop. When I'm at a stop the truck sits at roughly 1200 rpms for at least five seconds and then it will go back to the normal idle. Why would it be doing that?
Saturday, September 8th, 2012 AT 2:19 AM