JD 5100e engine problem. Dealer doesn't know what it is.

[Dadnatron]

jd110, I have had codes for low fuel rail pressure before. They were addressed by changing out the filters. This is what I thought was going on this time, but new filters did nothing.

The first tech (from a different shop) who came to look at it said there was nothing wrong, but only started it up and ran it for a few minutes. When I explained to him it happened a little after it warmed up and under load, he came back out and said the tank was full of gasoline and that was the cause. I know this wasn't the case, but I drained it completely anyway. (It was diesel).

I ended up calling the other shop in town and having them send their tech out.

 

[MinnesotaEric]

Sounds like your high pressure fuel pump or something in the high pressure system is starting to shell. Maybe let this buck until it gets bad enough to properly diagnose.

Alternatively, try calling these guys and ask what they think it may be. Diesel Specialists for Powerful Diesel Solutions | Area Diesel Service

 

[Brown Dog]

While “In E-PTO” & engaged : the motor won’t rev past about 1850rpm

im sure you know this tho.

it’s designed so you can’t over-Rev implements on these newer JD with electric throttles

 

[Brown Dog]

Best I remember : my 2018 5115M won’t Rev but about 2400rpm : I’m thinking

 

[Dadnatron]

This isn’t just limited RPM, but sputtering and surging.

 

[Bavarian]

It would be interesting to know which engine type it is. You're not stating a model year. There are quite some diffrent models on the market, they're all called 4045's.

I had similar codes on a 2012 6430 premium. Low fuel rail pressure. A new suction control valve solved the problem. It's a common rail engine.