smp566

Source: Ch 427 Black Smoke And Wont Shutdown Hey thanks for the input I was kind of thinking along those lines, also, thinking it might be the rack in the injection pump sticking, was just curious if it has happened to anyone else , tks again

Hello Everyone , I just bought a Mack CH 427 electronic pump V Mack 1996, now they truck ran fine taking it home , no problems, let it cool down, then shut truck off,,, came back out after a bit , started it up and she is blowing all kinds of black smoke out , went to shut truck off and she will not shut off with the key , had to pop the clutch and stall it to get it to turn off, Iam new to the Macks but I ve been a Mechanic for Years, Need some help on this though Anyone have any Suggestions!!!!!!! Tks Shawn