I now have found codes 2-5 and 3-5. I have driven everything from a Volvo, Freightliner to Peterbilt. This is my newest truck 2004 Mack. Electrical problems are new to me. Any suggestions on these codes and how to fix them.
I recently bought a 2004 Mack Vision. Can anyone tell me if the fuel transfer pump electric or manual? Where is it located? Is there a fuse for it and where it is located. My truck will turn over but not start. No smoke.