Contour Enthusiasts Group Archives Forums Modifications 3.0L Duratec ?Help tracking down the stuttering problem....Long...

- WarMonger - This is for you man. You and I both have confirmed the cold engine, no stutter situation. We know there are many 2000 svt's with this problem and it seems it can develop on on other v6's,years,and combo's. This is from personal research,searches on the forums,speaking with local CEG'rs,and your experience. I am working on every avenue trying to test out what it is exactly. In my on-going research, I have re-read all the prev. posts in here and it seems that when you tested with the variable resister, you confirmed that it was a function of measured coolant temp NOT actual engine temp; since you stated that when you turned the resistance so that the coolant temp read <80 deg F, the stutter was gone. This leads me to believe that ALL this stuttering is coming from the PCM and/or the chip calcs when coolant temp is read above a certain temp -- in this case around 80 degrees and hotter. I wanted to get your thoughts/confirmation on this so far and any comments on my theory - much appreciated. TtYs.