KBUCZYNSKI523

Thank you very much for your help after going over everything again I still have the same issues and I managed to find a used injector pump. There are 2 pressure sensors located on the top of the pump. I was woundering if I should just swich the 2 sensors or vhange the entire I jector pump. The truck starts without any problems. And runs perfect at idle. When driving it has a slight misfire and with full throttle it still smokes black smoke a lot

i have a 2002 mack freedom xxlwith renulat engine. its a 24ft box truck with manual trans milage is 298,987 miles this truck was sitting for around 2 years and it started right up some smoke came out but i fugured it was normal for a truck that didnt move for 2 years and now i am getting a lot of black smoke at acceleration. idles fine with no smeke when i accelerate it gives off black smoke. i have chacked everything i can think off injectors were pulled out tested all good. new fuel air oil filters everything was changed turbo is new. i looked for boost leaks everything is good. the EGR is clean. it also has low power it and the only thing i can think of that i didnt change is the injector pump. if any one could help me out i would be really thankfull i know that this truck is not very popular and there are not many out there. is almost impossible to fund someone who knows about this engine, thank you