Cummins 5.9 stalled and wont start. Injector pump?
Hi all,
Need a little help on this one. 1994 Safari Sahara with the magnum chassis. Cummins 5.9 230 HP and the Allison MD 3060 tranny. Engine stopped on a hill, would not restart. I feel like it didn't have full power right before it died, but that may just be in my head.
This coach is new to us.
Everything is working, engine cranks, just doesn't fire, so I suspected it wasn't getting fuel. After some time, I have determined that fuel is getting to the injector pump, but not going to the cylinders. I cracked the inlet line on the injector and fuel is pumped out when cranking engine. When I loosened the fitting on the injector itself, I don't get any fuel.
I know very little about troubleshooting the pump itself. The next thing I am going to try is to check the fuel shutoff solenoid. I'm hoping that is it, but I won't know until friday when I have time to look into it.
Does anybody have any other suggestions? Also, I would like to confirm the purpose of the shutoff solenoid. My understanding is that it shuts off when the ignition circuit is shut off. Therefore I should get 12v at the terminals when the key is on, correct? If I have 12v there, then I need to determine if the solenoid is actually operating, which I should hear or feel. If not I will have to pull it to visually verify that it is operating. Can somebody please confirm this process for me?
FYI I have above average mechanical skills, but little experience with engines, especially diesels.
Thanks in advance, any help is greatly appreciated.
Need a little help on this one. 1994 Safari Sahara with the magnum chassis. Cummins 5.9 230 HP and the Allison MD 3060 tranny. Engine stopped on a hill, would not restart. I feel like it didn't have full power right before it died, but that may just be in my head.
This coach is new to us.
Everything is working, engine cranks, just doesn't fire, so I suspected it wasn't getting fuel. After some time, I have determined that fuel is getting to the injector pump, but not going to the cylinders. I cracked the inlet line on the injector and fuel is pumped out when cranking engine. When I loosened the fitting on the injector itself, I don't get any fuel.
I know very little about troubleshooting the pump itself. The next thing I am going to try is to check the fuel shutoff solenoid. I'm hoping that is it, but I won't know until friday when I have time to look into it.
Does anybody have any other suggestions? Also, I would like to confirm the purpose of the shutoff solenoid. My understanding is that it shuts off when the ignition circuit is shut off. Therefore I should get 12v at the terminals when the key is on, correct? If I have 12v there, then I need to determine if the solenoid is actually operating, which I should hear or feel. If not I will have to pull it to visually verify that it is operating. Can somebody please confirm this process for me?
FYI I have above average mechanical skills, but little experience with engines, especially diesels.
Thanks in advance, any help is greatly appreciated.
