Join Date: Jul 2011
87'_$dime is offline
Re: High/Erratic Idle, Missing/Bucking 2.5 Iron Duke
i am having a similar issue, i've changed tps, o2 sensor, coolant temp sensor, icm, hall effect, cap and rotor button, went out and bought a new p/u coil, and ignition coil, and i am still having an issue. i'm tracking the problem down, been three weeks of constantly throwing something else in the fire, the problems lessening though. could have multiple issues. my next guess for me is a idle air control. or egr for me. something else that may show up is when you come to a sudden stop. rpm's shoot way down past idle speed then back to normal. (atleast mine does)
good luck finding the problem. i'll keep my problems out on front also!