John R Snyder

I agree that it is the most worthless thing, and the local dealer tells me there is no way to turn it off on my truck. Does anyone know if this is true or is there a way?

Thanks everyone for the input, guess I should go back and have them rerun the rack. I think I might try another shop and hope they can get it right.

I have a 2008 Granite with a MP8, I had 2 injector's go bad so I had the local Mack shop replace all 6, they told me the engine wiring harness was bad, so they replaced it at the same time. My problem is ever since then I have lost 6 to 7 pounds of manifold pressure pulling and 10 pounds when using the engine brake, the hills I used to jake down I now have to use way more brake. I went right back and told the service manager and mechanic, they say they cant understand what could have caused this. Just wondering if anyone else has experienced this problem. Of course they would be willing to hook up to it with their computer I'm sure, but I get tired of paying 100 plus dollars an hour or more experimenting if you now what I mean, I'm sure if it were obvious the Truck computer would give me a fault code.

Name: The Ole Red Dog Date Added: Owner: John R Snyder John R Snyder