LS R4041 dying on acceleration

[Stampeder]

Got a R4041 which starts alright.
When I hit the accelerator the engine dies.
Replaced the fuel filter. Fuel shutoff valve works. Fuel is getting to the injectors.
Not sure what is wrong.
Has anyone had a similar experience?
Thanks.

 

[alexpops]

How's the air filter?

 

[Avenger]

Interesting.

Does it do it sitting still in neutral, simply revving up the engine? Or does it do it while trying to move? Here is what I'm getting at, maybe your brakes are locked up somehow?

If it's dying without a load on the engine, simply revving it up, but runs fine at an idle... filters are all good, fuel is getting to your rail, then that leave me with clogged injectors or not enough fuel pressure.

 

[thepumpguysc]

I’m going w supply pump not feeding the inj pump when it needs more fuel.
THAT or clogged screen in the tank..

 

[curtthegreat]

When you say it dies, does it turn the key off die, or sputter down die? If it's turn the key off die, it could be something simple like the safety switch in the seat going bad. Mine acts up on me when the temperature get colder.

 

[hornett22]

I’m going w supply pump not feeding the inj pump when it needs more fuel.
THAT or clogged screen in the tank..

Customer of mine had that issue on a BX Kubota. It was a blown accessory fuse that ran the pump.

 

[Stampeder]

Interesting.

Does it do it sitting still in neutral, simply revving up the engine? Or does it do it while trying to move? Here is what I'm getting at, maybe your brakes are locked up somehow?

If it's dying without a load on the engine, simply revving it up, but runs fine at an idle... filters are all good, fuel is getting to your rail, then that leave me with clogged injectors or not enough fuel pressure.

Sorry for being late with the reply. It does it in neutral as well as in gear. Does it anytime you try and accelerate.

 

[Stampeder]

When you say it dies, does it turn the key off die, or sputter down die? If it's turn the key off die, it could be something simple like the safety switch in the seat going bad. Mine acts up on me when the temperature get colder.

It sputters and dies. Thanks.

 

[Stampeder]

Customer of mine had that issue on a BX Kubota. It was a blown accessory fuse that ran the pump.

Interesting thought. Will have to check that. Thanks.

 

[thepumpguysc]

Disconnect the fuel feed line and run it in a bucket.. turn the key to get the supply pump ticking and watch the fuel.. let it run a minute or so and watch the delivery out of the line.. if it slows down any, u gotta supply pump issue..
If it starts blowing foam, u have a clogged screen in the tank, is my guess..
How about reaching up an loosening the tank cap and see if flow picks up.. if yes, u gotta clogged cap vent..
Good luck

 

[deezler]

Yeah still sounds like while the injectors/engine may be getting some fuel, they aren't getting enough flow to allow for rev/load. I would inspect the entire fuel system path from tank to injectors.

 

[hornett22]

Sorry for being late with the reply. It does it in neutral as well as in gear. Does it anytime you try and accelerate.

This is exactly what my customers was doing. I knew it wasn't a tank issue because the reason I had it was to replace the tank with a brand new one. Plus,it ran fine when I got it. It ran fine at my house after repair. Ran fine at their house when I dropped it off. As soon as their son in law used it again, low and behold ,there was a problem. Go figure.

When I got there, I never heard pump. Put test light on it, no power. Checked fuse, blown. Replaced. No issue since.

 

[WiJay]

Got a R4041 which starts alright.
When I hit the accelerator the engine dies.
Replaced the fuel filter. Fuel shutoff valve works. Fuel is getting to the injectors.
Not sure what is wrong.
Has anyone had a similar experience?
Thanks.

Have you been able to figure out the issue, My 2019 with around 50 hrs bogs down and will die at times, this will happen underload, plowing snow or just driving down the road, idles fine. Going to install new fuel filter, running a winter 50/50 blend and anti gel.