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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Ok guys, I have found the problem. The last resort was towing this RV to freightliner, since I purchased the remanufactured OEM cummins ECM through them. Had it towed Monday 12/7 and I got a call from them a few hours after they received it.
The VP44 injection pump is no good. I purchased my remanufactured unit through Thoroughbred diesel. It did fire on a breakout box(cummins tool to make sure fuel injection pump is working properly). I went through 3 computers, one of them fired the engine up but ran poorly, no throttle pedal. Freightliner seems to think one of those ECM's that was programmed incorrectly fried the electronics on the VP44. There is a sensor on the pump telling it when to release fuel to each cylinder. That is not working. Pump needs to be replaced.
I am having them put on a remanufactured OEM cummins VP44 injection pump. Hopefully this will be the last of the problems. I will update again after I get the coach back from Freightliner. Thanks for all the replies, it definitely helped.
The VP44 injection pump is no good. I purchased my remanufactured unit through Thoroughbred diesel. It did fire on a breakout box(cummins tool to make sure fuel injection pump is working properly). I went through 3 computers, one of them fired the engine up but ran poorly, no throttle pedal. Freightliner seems to think one of those ECM's that was programmed incorrectly fried the electronics on the VP44. There is a sensor on the pump telling it when to release fuel to each cylinder. That is not working. Pump needs to be replaced.
I am having them put on a remanufactured OEM cummins VP44 injection pump. Hopefully this will be the last of the problems. I will update again after I get the coach back from Freightliner. Thanks for all the replies, it definitely helped.
