2002 Cummins 4-390 engine???

[stefuel]

I'm assuming in 2002 that this engine is 100% mechanical injection. I think this engine even has a mechanical camshaft driven lift/fuel pump similar to a fuel pump on a old small block Chevy. Anyway, I'm told that it starts right up and runs well but then randomly shuts down. So I guess there is two directions to look. The fuel shut-off solenoid/wiring/power or fuel delivery system. If it runs fine until it quits, I'm guessing the injection pump is not the problem unless there's a fuel strainer that is clogged at the inlet of the pump. Am i missing anything on a older 4-390 engine that would cause random shutdowns???

 

[Tinkerer]

The thing that is missing is what the motor is in.

 

[Delmer]

or the injection pump model would help.

 

[stefuel]

The post was more about the engine then what it's but it's in a 2002 Case 85XT

 

[thepumpguysc]

Your on the right track..
1) shut off solenoid on the pump.
2) 12v power supply TO the solenoid..
3) depending on how it shuts down, dirty filters..

1) u CAN run a 12v power wire straight from the battery TO the solenoid.. that’ll eliminate the intermittent power supply..
2) u can take the guts out of the solenoid, spring and plunger..
That will also eliminate the solenoid problem..
If it still shuts down, u have a fuel/filter problem..
Good luck & Merry Christmas.!!!

 

[Vetech63]

It's a Cummins 4BT3.9 in a Case dress. The engine serial number will not come up in Cummins system but a lot of times the Cummins part number will be stamped on most parts. Case does this so they can charge you $500 for a belt tensioner that Cummins sells for $150. Been down this road many times................

 

[thepumpguysc]

Just substitute a “3” in place of the “J”... THAT’ll get u a good # to use.

 

[mekanik]

I have seen a Cummins 5.9 B series do the exact same thing. It turned out to be the lift/fuel pump.
I replaced the diaphragm type lift pump with an updated plunger type pump. Problem solved.

 

[Nige]

The post was more about the engine then what it's but it's in a 2002 Case 85XT

But you note from Vetech's reply that by you mentioning what the engine is installed in straight away gives the answer to what model it is.?

 

[Tinkerer]

I always thought the exact machine needs to be known, so that the fuel line routing, screens, filters and even a lift pump can be looked at to diagnose a problem.
But, I guess if a person is absolutely certain the problem is in the pump nothing else is needed to know.

 

[Nige]

But, I guess if a person is absolutely certain the problem is in the pump nothing else is needed to know.

"I have my opinion, don't confuse me with the facts." I had a boss like that once......

 

[Txhayseed]

Didn't say how it dies. Just shuts off instantly ? Chugs to a stop with smoke ? Starts right back up with no issues ? Starts back up after cranking the starter till it catches ?? The diagnostics are always in the details the more you can provide the better.