P2617 Code - Crankshaft positions sensor? - Diesel Forum

ScottGropp · 03-01-2008, 04:08 PM

Hello everyone. Thanks for all the help you've given me over the years just from reading the threads on here. I can't find the answer to this one, despite my searches.

2006 F-350 Crew Cab Dually, 6.0, Auto. 150,000 miles (yeah, no warranty help here)

Truck started becoming harder to start over the past few days. Cranks, acts like it will start, even might start for a few seconds, then dies. Good fuel, good filters. Recently changed oil. Fuel pressure enough to bubble/spray fuel at the upper fuel filter.

Now it shows a P2617 code saying "Crankshaft position sensor circuit output open" or something similar, and won't do much but sputter. I'm use a $300 scan tool from O'reilly's, so maybe it isn't giving me accurate info, but it has been accurate in past.

Can anyone help me?

GreenMachine03 · 03-01-2008, 08:27 PM

Make sure the crank sensor is hooked up or maybe the wires got frayed somewhere for it. That's my 2cents though.

ScottGropp · 03-02-2008, 12:23 PM

I tried moving the wires around underneath to see if I could accomplish something. They weren't easy to get to, but I did move them around a fair amount. I've talked to a great tech about this, and he says the sensor going bad is so rare, he isn't sure that would be it. Wires chaffing, maybe. But the code reading seemed strange also.

So I thought I would see if there was anything obscure this forum could point me to. Thanks.

Black05 · 03-03-2008, 12:44 PM

This is just a guess,mind you, but I would look at the ICP sensor and connector. If there is oil in the connector, then the ICP is leaking. When my ICP went bad, it went from hard to start to not starting at all.

Good luck.

AllOutFirefighter13 · 03-03-2008, 02:17 PM

Scott ,

Not to add complexity to this problem, but you could have more than one issue going on. I'm in agreement with Black05 about this possibly being an ICP issue. Also, even though it might not show any traces of oil, the sensor itself could still be bad. You might see if your tech. friend could hook up a Ford computer to look at the ICP reading. Anything below 500 PSI and the injectors won't even fire. Also, don't rule out that it isn't a CPS problem. There's no rule that states these trucks can't have more than one problem at the same time...food for thought. Keep us posted on what you find!

Later,

Dustn1799 · 10-30-2009, 01:50 PM

I am having similar problems. My 03 6.0 F-250 went from an ICP sensor code to a Crankshaft sensor code. Took it to the shop and there was a leak in cylinder 1, which they fixed. After that there was not enough oil pressure to reach the 500 to get the truck to start. They are still unclear on what is going on; however, they were able to start it with 1, 3, 5, and 7 fuel injectors unplugged. But only ran for 20 minutes before it stalled. So I still have some other issues. All the fluids are new, FICM is good, etc...the shop has no answers.

Be interested to find out what your truck is experiencing and if there might be any suggestions on what is happening with mine!!!!