We have a 1999 Chevy V8 Express Van (5.7 liter)
The van died on the side of the interstate.
It was towed to our local dealer where the van was purchased.
They replaced the blown fuse and the Crankshaft Position Sensor.
While driving home approximately 10 miles from the dealer, the fuse blew again and it was towed back to the dealer.
At this time, they replaced the fuse along with the Coil & ignition module.
It was then driven home, driven again for approximately 80 miles the next day and another 120 miles three days after receiving from the dealer. The van was idling at home five days after picking up from dealer and it died when putting it in gear.
It was sent back to the shop and the dealer observed the van for 4 days (test driving and letting it idle, etc.) with no success of getting the fuse to blow again so they could identify the problem. We picked the van up to attempt to repair at home due to the time and our funds quickly being depleted.
I tried to replace the VCM that was purchased from Napa who “flashed” it and our first attempt did not work, I contacted the Service Tech with AC Delco who referred me back to Napa to return and replace the first VCM. Neither of the two new ones worked allowing the van to start. The van did start again after I replaced it with our old VCM.
It is blowing the fuse ECM-1-Fuse H7-J8. From my research, it appears that fuse controls the following:
Crankshaft Position Sensor
Ignition ModuleIgnition Coil
Would you please provide guidance on what might be the problem along with the most time and price efficient steps to take next? Thank you in advance for your help.