I have 2018 paccar motor . Has deleting it helped or hurt ? Tired of the codes related to DEF issues coming on and off. And shop time
Deleting a paccar
Discussion in 'Ask An Owner Operator' started by Soonerman51, May 29, 2020.
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There are guys here who really can help. -
3130.. it’s for the def temp sensor . It comes on and it goes off. Can cycle the key and it will go away and come back .
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@longfld just posted about a wire harness problem
Midwest Trucker Thanks this. -
@Long FLDDeere hunter Thanks this. -
Probably not going to get any info about deletes. The owner does not want it discussed on their website.
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Unplug the main harness from the ecm and then cut all the ties that keep the wires inside the driver side frame rail. You should have 6ft of wire to stretch out in front of your firewall once everything is loose. Then start inspecting wires. Chances are they kinked one or one rubbed a bare spot.
I bought the truck I have now with 244k on it. The previous owner chased phantom codes like you describe until they pulled the main harness and inspected each wire. Peterbilt in Garden City told me they’ve seen this issue on quite a few MX powered trucks. It seems they bundle the wire up too tight inside the frame rail and causes some pinching and kinking. Happy hunting.Bains, Dale thompson, Coffey and 5 others Thank this. -
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Deere hunter Thanks this.
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I deleted all of my Cummins ... what a huge difference !!! 2-3 gallons per mile increase in fuel mileage , more power , smoother idle , cleaner oil everything was better. We did a lot of other improvements also so that helped a lot to. But these newer more modern engines I don’t know to much about.
Coffey and Chubby Fly Thank this.
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