John Deere engine running rough

[Dman2]

Our JD 3800 loader keeps running rough, as if it`s drawing air into the fuel.
Only does it every now and then though. can do while stood or while moving which to me rules out a wiring problem
Checked all pipes and fittings all tight.
It has a Facet 12v fuel pump fitted in place of the mechanical primer, always starts 1st turn summer or winter.

Any ideas please

 

[it's not over]

Is there a filter in the diesel tank. 10 series has one on lift pump inside tank

 

[Dman2]

Did wonder that but parts pic doesnt show one

 

[NZ Tech]

By running rough you mean a misfire at high rpm not unlike a petrol car misfiring. Exhaust will vibrate etc

 

[it's not over]

Could of been fitted after .worth a look

 

[davidroberts30]

Filter blocked?

 

[Dman2]

Not a missfire type problem, engine will die then pick back up again, might do it a couple of times then be ok for however long, sometimes 2 minutes sometimes an hour.
Have changed inline and fuel filter, plastic seethrough inline filter and no air seems to be coming through
Have aslo swapped facet pump, as had a spare

 

[2wheels]

Not a missfire type problem, engine will die then pick back up again, might do it a couple of times then be ok for however long, sometimes 2 minutes sometimes an hour.
Have changed inline and fuel filter, plastic seethrough inline filter and no air seems to be coming through
Have aslo swapped facet pump, as had a spare

we had a ford/nh 6810 that did the same, never got to the bottom of it. suspected the injection pump but as it was ok most of the time we tolorated it.

 

[it's not over]

Not a missfire type problem, engine will die then pick back up again, might do it a couple of times then be ok for however long, sometimes 2 minutes sometimes an hour.
Have changed inline and fuel filter, plastic seethrough inline filter and no air seems to be coming through
Have aslo swapped facet pump, as had a spare

Similar problem with 6210 jd. Changed fuel lines from tank to pump. sorted

 

[J 1177]

Not a missfire type problem, engine will die then pick back up again, might do it a couple of times then be ok for however long, sometimes 2 minutes sometimes an hour.
Have changed inline and fuel filter, plastic seethrough inline filter and no air seems to be coming through
Have aslo swapped facet pump, as had a spare

Our tractors have been doing this our 5130 especially, put new filters on a load of injector cleaner and additive in the tank. Same with my Massey. It's this crappy diesel. Even the old david brown started to get affected. Agrii are having no end of bother with their sprayers.

 

[Timbo]

Our JD 3800 loader keeps running rough, as if it`s drawing air into the fuel.
Only does it every now and then though. can do while stood or while moving which to me rules out a wiring problem
Checked all pipes and fittings all tight.
It has a Facet 12v fuel pump fitted in place of the mechanical primer, always starts 1st turn summer or winter.

Any ideas please

If easily done, pop a length of clear hose in a loop between last filter and inj pump... Run it a while and see if any air collects at the top of the loop...

 

[Dman2]

Took tank sender unit out seemed fine did a vacuum test ( suck on pipe then tongue over end ) and no air leaks on pipe
Reinstalled and is running ok now.
Think there must have been some muck on end of pipe?????

 

[NZ Tech]

And it has a stanadyne de10 fuel pump??.

Any fault codes?.

When the engine dies what colour smoke does it puff?.

Not a missfire type problem, engine will die then pick back up again, might do it a couple of times then be ok for however long, sometimes 2 minutes sometimes an hour.
Have changed inline and fuel filter, plastic seethrough inline filter and no air seems to be coming through
Have aslo swapped facet pump, as had a spare

 

[it's not over]

Took tank sender unit out seemed fine did a vacuum test ( suck on pipe then tongue over end ) and no air leaks on pipe
Reinstalled and is running ok now.
Think there must have been some muck on end of pipe?????

Is it fixed ??

 

[NZ Tech]

Usually lack of fuel causes odd colour smoke for reference. Whites and purples etc. Fairly noticeable.

 

[Thick Farmer]

Swan Vestas

 

[Dman2]

Usually lack of fuel causes odd colour smoke for reference. Whites and purples etc. Fairly noticeable.

Nothing noticeable this time
Although exhaust stack is behind me

 

[Dman2]

Is it fixed ??

Think it`s sorted
Will tell better tomorrow
Downside is ,wind got a hold of the door and now its not a door