2012 Mack Pinnacle (MP8)

600k motor still strong but 15k spent already still not working right. Has to do with SCR system derating the truck. same year and motor

 

When were injectors looked at? Truck I was driving needs them, something about being loose fitting from the factory. still an issue with nox though. we replaced the egr cooler, egr valve, #7 injector in DPF and controller for that.

 

I just bought a 13' it's a 2010 EPA engine though so the same as your 12'. It's got 436K, I have all the warranty history on the truck and the injectors and cups were a known issue on these MP8's. Mine were replaced by the previous owner. For what I paid for the truck used I'd buy another almost rather than even rebuild my freightliner Columbia with a cat. So far the only issues I've had was the doser injector, fuel gauge plunger in the tank, and a break peddle pressure sensor.

 

Mine came from Southern Illinois truck lines I think, it's a nice spec'd truck. I will say this I run a fuel additive in mine from Texas Refineries it's the arctic for winter. I run it all year during none winter driving I use half of the recommended, but I really can tell a difference in the truck and the amount of regen's it does. I run flatbed and am fairly heavy all the time, but I don't have a espar heater or apu so I idle when it's cold or to hot (I'm a wuss) but I also idle up when idling. Also, i've heard a lot of mechanics say to just bake the DPF every 100k or so.

 

This is when I first put the lettering on it. I like the Mack more than I thought I would.