Cummins X15 starts and then dies

The first pic is a davco.
The 2nd pic with the k37-1011 is paccar's lousy version of a fuel water separator.

The benefit of a davco is you only change the filter when the level gets to the black line at the top. You can also see if the fuel level is constant to the fuel pump. As the davco collects impurities in the fuel, the level will rise. The upside down peterbilt version is always full of fuel, you have no idea what the fuel restriction is or isn't. You just change it at every oil change, or every other, or a set number of miles, etc. Plenty of opinions on when to change. Mine was problematic with the oem filter, it would run like it's starving for fuel after maybe 12-15,000 miles in summer and in winter it wasn't uncommon to have the same symptoms after only 5,000 miles. The filters cost about the same. Also - I do not have a fuel restriction gauge. I'd like to, dash space doesn't currently allow and it isn't too high a priority anymore.

 

Davco is the probably the largest/most installed and oldest fuel/water separator company. Also the most reliable.



NOTE: All suction side fuel filters experience bubbles. It is normal to see champagne size bubbles in the fuel processor at the Fuel Pro/Diesel Pro outlet or at the lift pump.

Weekly water drains 1. Turn off the engine and remove the vent cap. 2. Place a suitable container under the Fuel Pro and open the drain valve. 3. Collected water will flow into the container. When fuel begins to flow out the drain, close the drain valve. Drain the least amount of fuel as possible. 4. Install the vent cap and tighten it by hand until it clicks. 5. Start the engine and raise the RPM for one minute to purge the air from the system

 

I wouldn't think the turbo actuator would make it stumble like that...........

They may be right... I suggest you read a whole bunch over on rawze.com , there are plenty of shops will plug in computer has a code they say "oh you need a turbo or actuator since the computer says so" you go and spend a bunch of money and have the same problem. It could be a bad sensor giving erratic data which would need to be monitored in insite, but perhaps not erratic enough to trip a code for it, instead giving a different code. I'd really start reading over there though, if you just throw parts at it the next thing they will say is you need a turbo and you are quickly into $10k+ and you haven't solved anything..

 

If the code was inactive then that problem is not current, not a problem at this time. It may be intermittent. Once the voltage/signal is verified to the actuator, separating the actuator from the turbo will tell more. The actuator may be frozen or the lever on top of the turbo that moves the vanes may be frozen. If either is frozen that part needs to be replaced.

 

Did you recently run outta fuel?
Mines 2020 x15 565 performance motor. Recently ran out of fuel and now it starts in morning then dies after 3 seconds. Then starts after cycling the switch and runs just fine for the rest of the day, no engine light,...I'm still exploring the internet for answers but no answers so far. Everyone has different opinions. Anyone???