Parking on incline problem

[Warren Lovell]

When I park my M1009 on even a slight incline, and leave the truck there for 30 minutes shut down, when i start the truck - it'll run for a few seconds then die. I have to crank the motor for a while to get it to run.

This ONLY happens when the front of the vehicle is parked higher than the rear.

Anyone know what might be causing this?

 

[M1075]

When I park my M1009 on even a slight incline, and leave the truck there for 30 minutes shut down, when i start the truck - it'll run for a few seconds then die. I have to crank the motor for a while to get it to run.

This ONLY happens when the front of the vehicle is parked higher than the rear.

Anyone know what might be causing this?

I have the same problem so I always park her nose down! I think the fuel settles out of the filter back to the tank. I would be interested in the proper solution!

 

[Warren Lovell]

Must be a bleeder type valve that has failed...although i don't know. I can't seem to find this issue in the TM.

 

[deuceman08]

how about if it sits for a couple days without running it. hard to start?

 

[Stihl029]

There is a bleeder on the fuel filter housing that I had an issue with. if I parked it for a few days I would have to reprime the lines a bit. I discovered it when had a pretty rainbow in the gravel one day and traced it up to the screw not being all the way in on mine.

 

[REDWOLF]

I have the same problem with my m1009. Where is this screw at?

 

[lavarok]

Could be the check valve in the lift pump. Also, check to make sure the return line check valve is not stuck open.

If the lift pump check valve isn't working, you'll need to replace the lift pump.

I had the same problem on my M1009 daily driver. I installed an electric fuel pump and new fuel lines. No more problems.

 

[lavarok]

The problem can also be caused by a small air leak. If you pressurize the fuel system slightly, you may be able to see the leak if there is one. The line from the tank to the lift pump is usually under vacuum and leaks are not readily seen. If there is one ( a leak ), the fuel will drain back to the tank when it is not running.

 

[lavarok]

One more post on this topic. You will find useful information here:

How to remove air from the fuel system and/or find an air/fuel leak on a 6.2L - Diesel Place

in regards to finding fuel/air leaks. Good luck!