JD 5093E Limited losing power

[Lineman North Florida]

Like the thread title says I was harrowing up a field to plant some sudan and noticed tractor wasn't pulling the harrow as easily as it normally does so it continued to get worse and I xarried it to the barn and my first thought was the filter/screen in the fuel tank, as I just serviced this tractor 30 hrs ago which included a new primary fuel filter, so I drained the tank and the fuel looked really clean as in almost no trash and virtually zero algae, pulled the screen/filter and it had very minimal blockage so I felt like that wasn't going to be the problem, and it wasn't. Tractor will rev up but when you put it under the least bit of load even pulling itself in high gear it just bogs. I did notice it will puff a little white smoke along and along, so what do you think? injector? maybe injector pump? maybe sucking air somewhere? I am open for opinions. Thanks. Charlie.

 

[Seven Gables]

Think I’d be looking for air slipping in since you’re filters are clean . How many hours on it ?

 

[Lineman North Florida]

Think I’d be looking for air slipping in since you’re filters are clean . How many hours on it ?

About 900 hours, it's a 2011 pre-def

 

[Seven Gables]

With that low of hours I doubt it’s anything too major. As a easy first step I’d have somebody thumb stroke the transfer pump while you loosen the filter head bleed screw and watch carefully for air bubbles coming out. Probably won’t fix the issue but at least you’ll know if any air made its way in. I’m assuming it’s set up about like my 5085e

 

[oldnslo]

Does that model have a fuel rail pressure sensor? Reason for asking is on 8520 this was the cause for power loss.

 

[ruffdog]

Maybe a critter nest in your air filter box or intake tubes?

 

[Tx Jim]

Check to be sure fuel tank is venting. Operate with shop towel covering fuel tank neck for test.

 

[Lineman North Florida]

Thanks for all the replies but I was able to spend some time today looking everything over and found an inline filter hidden in plain sight, this tractor has a small cooler in front of the engine oil cooler and on the outbound side of it the fuel line going to the injector pump had an in-line filter, I replaced it and bled the fuel system and it solved the problem, I never even knew that filter was there, but I do now.

 

[beenthere]

Is that filter shown as key # 26?

https://partscatalog.deere.com/jdrc/sidebyside/equipment/65380/referrer/navigation/pgId/737906245

part # AE29052 ?

 

[ruffdog]

On my Toolcat, the cooler is on the return line going back to the tank. I wonder if that is the case here???

 

[zzvyb6]

Release the brakes.

 

[Lineman North Florida]

Is that filter shown as key # 26?

https://partscatalog.deere.com/jdrc/sidebyside/equipment/65380/referrer/navigation/pgId/737906245

part # AE29052 ?

Yes sir that is it.

 

[Lineman North Florida]

On my Toolcat, the cooler is on the return line going back to the tank. I wonder if that is the case here???

No sir from the filter to the pump.

 

[ruffdog]

I wonder what the reasoning is for having the main fuel filter(s) and then this basic in-line filter???

 

[Seven Gables]

That fuel cooling loop doesn’t flow towards the pump . It routes excess fuel from the pump and hi pressure rail to and through the cooler and back to tank . My 5085e has basically the same set up but it appears they’ve eliminated the in line filter.

 

[ruffdog]

That fuel cooling loop doesn’t flow towards the pump . It routes excess fuel from the pump and hi pressure rail to and through the cooler and back to tank . My 5085e has basically the same set up but it appears they’ve eliminated the in line filter.

That is how my Bobcat is. The OP's filter is directional so you would need to know which way the fuel is traveling to know which way to install it. Otherwise, it will plug quickly, I think.....

Also, it makes sense to cool the hot fuel (from pump) before it returns to the tank.

 

[Lineman North Florida]

That fuel cooling loop doesn’t flow towards the pump . It routes excess fuel from the pump and hi pressure rail to and through the cooler and back to tank . My 5085e has basically the same set up but it appears they’ve eliminated the in line filter.

Pretty sure it does, look at the parts diagram in post#9 , that is my exact setup and unless the original filter from the factory was installed backwards the line comes from your primary filter with hand primer to the cooler then out of the cooler thru the in-line filter and straight over to the injector pump. The original factory filter had the flow arrow pointing to the injector pump.

 

[Lineman North Florida]

I wonder what the reasoning is for having the main fuel filter(s) and then this basic in-line filter???

Not sure but there are all kinds of little differences with these tractors, two different neighbors have 5083 models and one has an in-line fuel pump and the other is like mine and doesn't just to name one thing, there are a lot of differences.

 

[Seven Gables]

Pretty sure it does, look at the parts diagram in post#9 , that is my exact setup and unless the original filter from the factory was installed backwards the line comes from your primary filter with hand primer to the cooler then out of the cooler thru the in-line filter and straight over to the injector pump. The original factory filter had the flow arrow pointing to the injector pump.

Gotcha, evidently you’re 93e is designed differently than my 85e . Mine is definitely coming from pump/rail through cooler and then to tank. Glad to hear you got it fixed, did the original filter look to be quite contaminated and restrictive?

 

[Lineman North Florida]

Gotcha, evidently you’re 93e is designed differently than my 85e . Mine is definitely coming from pump/rail through cooler and then to tank. Glad to hear you got it fixed, did the original filter look to be quite contaminated and restrictive?

It was restricted and it was definitely the problem, one thing seems to be fore sure there are more than a few subtle differences in these models , no two seem to be exactly alike.