2250 pump failure.....and the result.

[Waterloo]

(11-14-2018 )Moore Wrote:  

(05-04-2016 )jimeneztrans84 Wrote:  It's those ceramic plungers!!!!

Is there any way to know if you have one of these fuel pumps with a ceramic plunger, And have they made a replacement?

It is not the ceramic plungers, it is the pump design, it wears and fails taking out the motor unless you catch it in time. All of these pumps will and do fail. It is now a regular maintenance item. Pumps should be rebuilt or replaced every 400,000 miles or there about. I don't know if the rebuild kits are still available or if Cummins is forcing you to buy a new pump.

What Cummins has done on the new X15 motor is to isolate the pump, so that when it fails the shrapnel is contained, it does not reach the oil. I don't know if it takes out the injectors, even still, the pumps are not cheap, nor are the injectors if they are affected.

In regards to the ceramic plungers, if you have those in your pump, rebuild or replace it now. The only way to check is to disassemble the pump. Also, the ceramic plungers were only in the first year or two of the 2250 production. After a certain date the plungers were swapped to steel by Cummins, someone will know here.

The original pump was a three cylinder pump I believe, then it was redesigned to a two cylinder pump. If you have the older three cylinder pump I would remove and inspect.

If you have one of these motors, is the pump painted? Does it look like it has ever been removed? If it is still factory red and does not look to have been worked on, I would remove and inspect at the very least. And being anal, I would rebuild and or replace the entire unit just for peace of mind.

Write the mileage down and start saving your pennies for the next rebuild and or replacement. And pray you never get a low fuel pressure code while going down the road. If you do, shut the truck down immediately and call a wrecker. Then pray.