DowneyB
Professional
Long time lurker, but I finally have a problem I cannot figure out.
I drove my truck last Tuesday evening, started and ran fine even though it was like 10 degrees out. Wednesday morning, same temperature, it will not start. I have determined over the last two evenings that when I crack injector lines, I do not get any fuel when cranking at the injectors. Up until this point, this has been the best starting and running idi I have ever had.
Everything else checks out. Fairly new Group 31s, okay battery cables, and a pmgr starter so it spins really well. I have an electric fuel pump, a new filter, and there was no gelling anywhere Wednesday evening or Thursday evening after work when I was working on it. (It was a balmy 32 degrees out, and I'm working in the driveway.) I took the top off the IP and checked that the fuel shutoff solenoid is working correctly, and the input side of the shaft inside the pump is turning. If I loosen the return line on the top of the pump while the lift pump is on I get a lot of fuel coming out of it. (GPs appear to be working, but with no fuel that doesn't really matter yet)
At this point I still don't know what is actually wrong, and I'm out of ideas on how to figure it out. Is there something I'm missing in the IP that I can check? How can I tell for sure if the pump is shot or not? I can't afford to just throw money at it, so I'd like to have a good confirmation of what is actually wrong.
I drove my truck last Tuesday evening, started and ran fine even though it was like 10 degrees out. Wednesday morning, same temperature, it will not start. I have determined over the last two evenings that when I crack injector lines, I do not get any fuel when cranking at the injectors. Up until this point, this has been the best starting and running idi I have ever had.
Everything else checks out. Fairly new Group 31s, okay battery cables, and a pmgr starter so it spins really well. I have an electric fuel pump, a new filter, and there was no gelling anywhere Wednesday evening or Thursday evening after work when I was working on it. (It was a balmy 32 degrees out, and I'm working in the driveway.) I took the top off the IP and checked that the fuel shutoff solenoid is working correctly, and the input side of the shaft inside the pump is turning. If I loosen the return line on the top of the pump while the lift pump is on I get a lot of fuel coming out of it. (GPs appear to be working, but with no fuel that doesn't really matter yet)
At this point I still don't know what is actually wrong, and I'm out of ideas on how to figure it out. Is there something I'm missing in the IP that I can check? How can I tell for sure if the pump is shot or not? I can't afford to just throw money at it, so I'd like to have a good confirmation of what is actually wrong.