Cummins ISB 5.9 Cranks but no fire-ECM power.
99 Holiday Rambler Endeavor 37CDS4 with Cummins 5.9 and Allison 3060. 180k miles. Just did a lot of major repairs including the following: -Cylinder head rebuilt, including new OEM sensors and cam se...
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We just checked all 5 fuses in the battery box, going right into the main wiring harness. All fuses are good, verified with test light. However, some of the fuse holders have power at both sides, without a fuse installed. Maybe the ECM is back feeding those lines with power?
