I imagine your "other" C-15 is a single-turbo and the engine serial number starts with a "6NZ"? Those engines are top performers! What year is the Accert? If the serial number starts with "BX", it's considered a "bridge engine" (the first twin-turbo Accerts). The ECM profile on these was not right, and everyone complained about power & fuel mileage! If your serial number starts with "MX" (from 2006 on) then you've got the better Accert engine.we also have bought a cat accert beautiful truck we live in australia but it is also well when it sees a slight climb it gets scared and says i think i can but it just does, we have done many test on it and can anyone give me some news on how to help this motor give a bit more witout ruining our standards or do we have to just live with it...our c 15 inthe other truck is beautiful and that is why we bought this one as we thought it would perform the same thanks bev
Your engine probably came from the factory set at 475 hp, but it can be uprated to 600 hp just by changing the ECM settings. I have our fleet set at 550, and they out-pull everything on the road. Of course, I keep them properly tuned :)
Regardless of which engine you have, lack of proper fuel pressure is a common problem with these Cats. The spring inside the fuel transfer pump is weak, and gets even worse over time. Cat sells an upgraded "spring kit" for these pumps. I would have the fuel pressure tested first, it should be 75 psi @ idle, 100 psi @ 1800 rpm. During normal driving operation it should be about 85 psi.
The only way to check the pressure is to "physically" connect a fuel gauge to the system. The Cat ET program (software the Dealers & repair shops use) does NOT show the fuel pressure!
Good luck with your truck!