XR4155 Won't Stay Running

[Snowman87]

I have a 2017 XR4155 hydro trans with cab and 517 hours, located in Wisconsin.

My Scenario: Tractor ran fine when parked but when I tried to start it up back in early February it would only idle at low rpm for ~30 seconds and eventually died, like it was starving for fuel. No codes or warning lights. The tractor is usually parked in my heated shop but was parked outside through some cold weather, and may have still had summer blend diesel in it because of the lack of snow this year… Assuming it was a fuel gelling issue I added diesel 911 to the tank and a 50/50 mix into a new filter and tried starting several more times with the same results.

After a couple more attempts to start I managed to get my first DTC code - F02 636. I did some internet research which seemed to point to a somewhat common crank sensor problem. I bought a new crank sensor, installed, and still had the same issues… I pulled the dash apart to use the OBD2 port and found a stored P0372 code which seemed to also tie back to the crank sensor. I cleared that and now I’m not getting any fault codes, so I think that may have been a false code tripped by the engine dying.

I’ve read through a variety of posts and tried a number of fixes without finding a solution yet.

• Battery is good, 1 year old and charged
• Verified air filter is clear of any obstructions
• Tried running without the fuel tank cap on
• Verified fuel flow coming out of the tank
• Blew out the hose from the tank to the fuel filter head
• Bled the fuel filter head multiple times

Seems to me like it’s still not getting enough fuel, thinking anything else would throw a code. Wondering if I should try cracking injector lines loose next? Only other thing worth noting is that I’m not getting any response when I move the hand throttle while it runs, it will just sit at a low rpm and eventually die no matter where the hand throttle is…

Getting close to calling the dealer, but I figured I would post here first to see if there’s something I’m missing.

Thanks in advance for any help/suggestions!
Nate

 

[thepumpguysc]

If it’s air bound or not getting enough fuel, the throttle will act like that..
Try breaking the fuel line loose at the pump, that will get the air out from the filter to the pump..
Then loosen the lines at the injectors.. once they start squirting, tighten them up.

 

[alexpops]

check battery cables hot & ground for corrosion. resistance could be undervolting ECU/crank sensor. There are posts about non responsive hand throttle here. fix seems to be replacing the hand throttle.

 

[RjCorazza]

If your machine uses an electric lift pump, confirm that it's actually running. They generally make a ticking sound 2-3 times per second with the key in the run position.

 

[alexpops]

If your machine uses an electric lift pump, confirm that it's actually running. They generally make a ticking sound 2-3 times per second with the key in the run position.

My '16 4150 has no electric pump. The routing of the fuel sucks though & electric push might help since fuel exits tank at bottom, climbs to top of engine for fuel filter, then drops to the injector pump. I also find I have fewer fuel starve issues when Tank is full & lots more when about 1/4.

 

[Bobrown14]

I had that problem with my mt3 - the crank sensor was definitely not working properly. My engine was knocking and limp mode. I had summer fuel and it was cold and I had water in the fuel filter.. I replaced the sensor - got the water out of the fuel filter and always add fuel additive/anti gel and always use winter fuel in the winter. After that initial issue and my follow up all good. I am very very picky about where I buy my diesel. I buy it from a shop that has over the road truck diesel and use that fuel ONLY. TA Truck stop in town. When I had this issue I had previously went to a gas station that was **** fuel.... never again. Lesson lernt.

 

[spruce Deere]

Sounds nuts, but pressurize the fuel tank as it's running with air. Use a rag and a blow nozzle stuffed in the fill neck of the tank and give it some air pressure to help push fuel. Maybe week fuel pump...

I sounds like a fuel delivery issue, But with a computer and a plethora of sensors, my guess is nothing.

 

[thepumpguysc]

If u have any rubber fuel lines anywhere from the tank TO the inj pump, u can add a low pressure supply pump..
Anything 10 psi and lower might help.

 

[Snowman87]

Thanks for all the comments, I really appreciate the input! I'll report back as time allows me to trial some of the suggestions.