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Message: [QUOTE="6speedsd, post: 1433916, member: 1242"] The part that's getting me is if you let the truck cool down completely, then crank it, it's only down on 1-2 cylinders, but as it warms up, that's when the other 2 drop off. It has to run 10 minutes or so before it gets that bad. In my head, and I could be wrong, but seems like that could possibly rule out a bad harness as well. I mean maybe it is injectors...they are all original on that side (260k). But if so, why would they fire/work when cold, but not when warm? Did pull upper fuel filter. Didn't look bad at all. Cycled key and housing fills quick. Turned engine over with jumper wire and got no bubbles in housing either. I don't think it is any type of fuel issue, but just checking things off as they come to me. Sent from my SAMSUNG-SM-G900A using Tapatalk [/QUOTE]

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