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I would go with the long nose VNL. the short nose trucks can get very cramped under the hood. dosent look like it but the few extra inches makes working on the engine much easier

One of our units came in today with complaints of black smoke and misfire at hyw speeds. The DPR leval was maxed out. We pulled the dpf and found the motor it smoking only if the exhaust brake is used. And the dpf had soot all the way through the outlet. The dpf is only 2 months old. Is the...

so could this cause the system to over pressurize? the trucks in question are fine at idle and a high idle they start to build pressure with quick throttle snaps, the pressure builds to caps pressure then starts blowing bubbles. I should be starting to get at them soon we are just about caught...

I just finished reading this thread and it was metioned that the water pump carbon seal could be a source of pressure in the cooling system. could you please explain how this happens and how to check. my shop has been doing a lot of head gaskets latley I currenly have 5 trucks in the lot that...