surging idle bouncing idle cold starts
This is the last problem i have on my truck at the moment and would love to remedee it!!!!! 260 k on it and still chugging along. When it gets pretty cold out, under 40 degrees, 90 percent of the time the truck starts up but the idle surges/ bounces from 500 rpm to 1500 rpm and will keep doing it unless i put the gas pedal down and give it some gas for 30 seconds or so. Any ideas??? Recent fixes ive done, new injectors + orings, new glow plugs, new uvc harnesses, new icp sensor, new IAT sensor, oil change recent delo 15W40, new fuel filter. What else could it be??? any help is appreciated! thanks!