Tripac apu

Motor was running fine, then shut off. I reset the breaker and it had lost prime,so I prime it and get it running. It was running rough and wouldn’t clear up, and when I tried to bump the RPMs it had no throttle response and would die when I let off.
I pulled the shut off solenoid and the idle came back to where it should be, but it had a fair bit of oil coming out.
@reeferwrencher what are your thoughts on this? I replaced the solenoid 6-8 months ago because of a hard start. The back side of that solenoid was blown out where the wires go in.

 

I’ll have to check and see what the date was. I have no idea how long the other one was on here. I’ve had the truck for 4.5 years and it is nearing 28k hours on the apu.
I know a lot of people hate them, but I sure do love mine.

 

I serviced it two weeks ago and yes the pump is clicking.

 

@reeferwrencher not sure if this is the same problem or new. It acts like it’s running out of fuel after a couple hours. I pulled the solenoid but it makes no difference this time. Can the lift pump restrict fuel? It starts surging just before it dies.