Join Date: Jul 2011
Location: Las Vegas,NV
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03 6.0 Rough Start and miss
Hey guys I have a 03 f350 that has been giving me some issues the last couple months. especially this last few weeks now that its a little cooler out. History that i know of! I bought the truck in July with 69k on the ticker and now it has 73k. The problems have started since the overnight temps have gone down into the 40's and cooler.
When I start it for the first time everyday she runs very rough and smokes for the first 20-30 seconds. It continues to run rough for about 5-10 minutes. I have done 2 oil changes on it since I have owned it. First one was motorcraft oil 15-40 with 2 shots of rev-x no help, second oil change I did t-6 5-40 with 8oz of archoil 9000 (supposed to be the same or better than rev-x) also no improvement!
I checked the ficm one time after a 35* night and voltage never dropped below 47 on key up, crank, or running. I will test again soon! Im not sure where to start or what to look at!
Any help is appreciated! I do have a couple videos I can upload so you can see and hear what shes doing!
03 F350 CCLB 4X4 6.0L 81k New to me on 7/22/11
ScangaugeII, Fog Light Mod, High Idle and fresh fluids!
4" lift waiting to go on, 35's, exhaust, 05 Front End, Coolant Filter