Review Of 12.7 Detroit Random Check Engine Light 2023. Web my 1st thought is the injectors or a bad injector, or fuel pump but to my knowledge injectors wouldnt make this sound.i have video of the noise but cant post it, not sure on how to post videos.best case scenario it sounds like injectors worse case. Web i won't say that a new wiring harness won't fix it, but i would think that if that was the problem i would be getting at least a check engine light.
But do keep in mind that there are a. In the bottom side it. In a freightliner with a detroit engine, there are different stages of warning lights/engine codes.
