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Power Strokes
7.3 Aftermarket
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[QUOTE="backwoodsboy, post: 1040800, member: 5415"] First video is a "cold start". Roughly 66* ambient temp. Truck sat overnight. You can hear the miss and rough idle as I am walking around the truck, as well as while the engine has a load on it. At the end of the video I am pedal to the floor trying to climb a small hill. Truck has absolutely no balls until EOT reaches 150*. After that things smooth out somewhat but it is still down on power. ICP and IPR% never get out of line. On a 50-100mph pull it will hold 3000psi @ ~40% DC. Second video is a hot start. 60* ambient, after a 30 mile run on the highway @70mph. EOT= 200*. Truck was shut off for roughly 30 seconds and then restarted. No CEL or DTC's. I have done a number of CCT tests and they are all over the place. Cyl #1 fails pretty consistently, as well as Cyl #4. I have a feeling I know what is wrong, just want some validation before I start tearing into it. [youtube]mQ_uwCANqP0[/youtube] [youtube]TnqSPxaNJG0[/youtube] [/QUOTE]
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