Truck is still at DC with fuel system related problems. Up to 2000 miles ago I thought I had bought the best truck yet. I am starting to doubt that. With only 8400 miles on the truck, it sits at DC with mechanics scratching their heads. At 6000 miles first fuel pump died!! I replaced it myself with one I purchased through Cummins. Fuel pressure was great 16# at idle and 11# at WOT. Then one day after about 2000 miles no fuel pressure, gauge dropped to ZERO while driving down the highway. I pulled over as the truck began to die. Bumped the starter and regained fuel pressure once again to make it home. About one week later truck did it again and this time the pump was dead!! Or so I thought. After going to Cummins and returning the fuel pump for another one, which I installed I still had a dead pump. I used a volt meter to discover... no power to pump! After checking relays and fuses I ran a power and a ground to the pump right off the battery. Fuel pump was running,so I drove the truck to DC and that is were it still sits. First thing DC says is this may not be under warranty,you have to many accessories. BANKS BRAKE was there main concern. I had to go there and show them everything I did to the truck. Diesel training 101 anyone. Now with all that cleared DC tells me your correct no power to pump.
As of today here is were I stand(10 days later)
DC installed another transfer pump
Did something to ECM
They are waiting to here from star on a possible wire missing in the harness. This wire shows in the book to be a second power source for the transfer pump. DC says not enough power and ECM shuts down.
I think I am getting no where fast.
One thing I found weird is that my fuel pressure gauge was always jumping. For example at idle it would bounce between 15#to16#it never ran smooth. I just said it works live with it,after running my own power and ground to the pump, the gauge ran smoother then ever. Weird
I just hope that sometime soon someone figures this whole revalation out.
I'll keep you all posted with the end result
Thanks for all the help
Brandon
As of today here is were I stand(10 days later)
DC installed another transfer pump
Did something to ECM
They are waiting to here from star on a possible wire missing in the harness. This wire shows in the book to be a second power source for the transfer pump. DC says not enough power and ECM shuts down.
I think I am getting no where fast.
One thing I found weird is that my fuel pressure gauge was always jumping. For example at idle it would bounce between 15#to16#it never ran smooth. I just said it works live with it,after running my own power and ground to the pump, the gauge ran smoother then ever. Weird
I just hope that sometime soon someone figures this whole revalation out.
I'll keep you all posted with the end result
Thanks for all the help
Brandon