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I've read some of your posts regarding your trucks performance...ie. slow on hills, runs better in cooler weather etc..
You mentioned in another post that your odometer is a little slow. Hummmm.........
As a thought, and only as a thought, here's a thread you might want to read (from 5 years ago) and pay peticular attention to what Optical Illusion (last post) had to say. https://www.ford-trucks.com/forums/3...ts-on-pcm.html
Just a little something for you to read and think about.