Hi everyone! I am a UPS mechanic, and a prior ford tech. I have a vt275 that just came back from the dealer for an egr cooler. I put the truck on the road, and it broke down at the end of the day. I found the 10a ecm/bat fuse blown, with no crank. I replaced the fuse, and it did not blow. I changed the ecm relay to be safe, and inspected the engine harness, and ecm connectors, and did not find any chaffing, or pinched wires. I put the truck back in service, and at about the same time of day, "the next day" it broke down again! Same condition! right now I can not get the fuse to blow, so I was wondering if anyone has had the same issue? possible ecm? Thank you for any help!
