Saturday, April 12th, 2008 AT 9:01 AM
Help. Truck starts fine and runs OK until warmed up then it sometimes stalls when stopped in traffic. I believe I hear a chattering noise coming from pasenger side of engine compartment or dash. (Hard to pinpoint) I have replaced fuel filter and added carburator cleanering product to fuel per directions with no positive results. Friend owns a handheld diagnostic device, plug it in with engine ok code present.

