2008 NH L175 cranks but won't start

[tea8700]

Unit only has 185 hours on it. Unit has always ran like a tank when I needed it. Was using to move dirt out of a hole today. Unit died and was able to restart once. Died again and now it will crank but will not start. When trying to start, I put seatbelt in and turn key and allow unit to countdown about 4 seconds and when glow plug light goes out, try to start. Unit will crank, but won't start and then the oil pressure light and hydraulic pressure lights flash and there is an audible beep and the unit goes into 30 second countdown. A side note...I had been keeping the seatbelt latched lately and when I would get into seat I would just unclick it and put back in to run unit. I had also got out of the seat and got back in when running today and only had to push the PARK light to run when it was working. Any help here greatly appreciated...need to get some trees planted asap.

 

[Mike10]

Is the electric fuel pump working. You should hear it clicking with the key in the on position. Depending on how the loader is leaning you could have run out of fuel. The fuel tank has a section at the back that crosses the loader and when on a slope the fuel will go there and you can run out of fuel even though the gauge shows you have plenty of fuel when level. Fuel filters may need to be changed.
If it is not a fuel problem then I need to know which version of the L175 you have. Is the instrument panel on the left front pillar or across the top of the front of the cab? Check your fuses otherwise.

 

[tea8700]

Is the electric fuel pump working. You should hear it clicking with the key in the on position. Depending on how the loader is leaning you could have run out of fuel. The fuel tank has a section at the back that crosses the loader and when on a slope the fuel will go there and you can run out of fuel even though the gauge shows you have plenty of fuel when level. Fuel filters may need to be changed.
If it is not a fuel problem then I need to know which version of the L175 you have. Is the instrument panel on the left front pillar or across the top of the front of the cab? Check your fuses otherwise.

Mike10,..Thanks for response. Gas tank is full. Fuel pump is clicking. I have the instrument panel on the left hand pillar. When you say fuses...which ones would you suspect and are they in the engine compartment? My concern is why are the 2 oil lights flashing? Does it not necessarily mean I have failure or will these machines do this for many other reasons or faults? Also, does this machine throw trouble codes and if so, how do you retrieve them?

 

[tea8700]

Is the electric fuel pump working. You should hear it clicking with the key in the on position. Depending on how the loader is leaning you could have run out of fuel. The fuel tank has a section at the back that crosses the loader and when on a slope the fuel will go there and you can run out of fuel even though the gauge shows you have plenty of fuel when level. Fuel filters may need to be changed.
If it is not a fuel problem then I need to know which version of the L175 you have. Is the instrument panel on the left front pillar or across the top of the front of the cab? Check your fuses otherwise.

Update...fuel pump clicking has stopped? Will it stop clicking if pressure has built up? I checked all fuses in cab and they were good. Even swapped out relay from AC/Heat to Starter Interlock to make sure no issues there. I did clean the terminal on the oil pressure switch as it was rusted and corroded. How do you check out the electric fuel pump? Could the fuel shutoff solenoid be the culprit and what's the best way to check it. Thanks for the help.

 

[Mike10]

Update...fuel pump clicking has stopped? Will it stop clicking if pressure has built up? I checked all fuses in cab and they were good. Even swapped out relay from AC/Heat to Starter Interlock to make sure no issues there. I did clean the terminal on the oil pressure switch as it was rusted and corroded. How do you check out the electric fuel pump? Could the fuel shutoff solenoid be the culprit and what's the best way to check it. Thanks for the help.

I would still start with the fuel system. Remove the fuel hose coming from the rear filter and going to the injection pump. Turn the key on and see if you have a good flow of fuel. The pump can click and still not pump fuel. The oil pressure lights being on is normal and is not your problem. Generally you will not see them but since you have cranked the engine longer than it usually takes to start the lights will come on. The fuse panel is next to your head on the right side of the cab top. You should see two black thumbscrews. Just check them all. If you have power on one side of the fuse then you should have power on the other side. A fault code will display itself when it happens, but are also retrievable. You can also check if you have power to the fuel shutoff solenoid by unplugging the wire at the rear of the solenoid and checking with a test light with the key on.

 

[tea8700]

I would still start with the fuel system. Remove the fuel hose coming from the rear filter and going to the injection pump. Turn the key on and see if you have a good flow of fuel. The pump can click and still not pump fuel. The oil pressure lights being on is normal and is not your problem. Generally you will not see them but since you have cranked the engine longer than it usually takes to start the lights will come on. The fuse panel is next to your head on the right side of the cab top. You should see two black thumbscrews. Just check them all. If you have power on one side of the fuse then you should have power on the other side. A fault code will display itself when it happens, but are also retrievable. You can also check if you have power to the fuel shutoff solenoid by unplugging the wire at the rear of the solenoid and checking with a test light with the key on.

Mike10...Thanks for your help. It was the fuel pump. I did what you said and also checked voltage at the terminals. Replaced fuel pump, inline filter and water separator and fired right up. Something noteworthy...the reason the hydraulic pressure and oil pressure was coming on is deceiving. In my case, the pressure was dropping from fuel depravation and it sent the machine into low pressure. Hard to find good resources at the dealerships, but my hats off to Baxla Tractors in Ohio. Was dead on the money and helpful with Mike10. Thanks and I am back to work!