Hey guys, I've been getting great info from the site since I bought my truck a little over a year ago. Very much appreciated. I've got a 2001 F250 7.3 2wd auto.
A little background...the SES light has come on when the truck is cold or under a load-like pulling a hill in OD at a low RPM-ever since I bought it. It comes on for a few seconds and goes off with no drivability issues. The DTC I get for this is 1316-IDM codes.
I have had an issue with long crank times hot or cold for the last 3-4 months. I think this is due to the starter getting weak.
New problem is a couple of weeks ago the SES light came on while I was pulling a hill and stayed on till I got to work (only about 2 more miles) and shut the truck off. It then sat for 4 days while I was driving company truck out of town. When I got back, it took 4 tries to get the thing to fire, but there was no SES and no drivability problems. (I did let it warm up for several minutes even though it was about 70 degrees.) I drove it to a buddy's house where it sat for 30 minutes, and then would not start and I had to have it towed. (I tried changing the CPS first, but no such luck.)
I borrowed a Nemesys scanner from a buddy, and now I have P1211(ICP higher/lower than desired) and P1212 (no ICP while cranking) and of course still the P1316.
During cranking at 170 RPM (not fast enough I don't think?) the ICP duty cycle maxes out at 65% and I only have about 280 PSI oil pressure. I'm thinking the IPR has gone bad.
Other info:truck has 2 new batteries, new ICP sensor from Ford, new ICP plug from Napa, I change the oil/filter and fuel filter religiously, I do have an oil leak on the top of engine which I have never been able to locate, and it uses/burns at least 2 quarts between oil changes. It still will start when cold if you try it 3-4 times.
Thanks in advance for any and all suggestions.
Thomas

 

IPR is certainly a possible culprit. They are easy to remove, clean and re-install. There are some good instructions on the web for the disassembly and cleaning procedures. IPR Repair for Ford Powerstroke 7.3 Other possibilities include injector issues (o-rings) or HPOP. Also, check your oil level. Another member just had a similar problem, and he was 8 quarts low. Rockauto has the Motorcraft IPR for $168 shipped right now.

As far as the leak, your EBPV may be leaking on your turbo pedestal if you are unable to see the leak. Is it coming off the back of the engine and onto the starter and bell housing area? The EBPV actuator rod is hidden in the back of the valley. Another possibility is your turbo may be burning/leaking oil out the exhaust side oil seal. I had both of the above issues on mine after 220k.

 

Looks to me you have several issues. Oil leak may be coming from a galley plug, or most likely the orings under the turbo. Your IPR is open 65%. Looking for oil. What is your current oil level? When was the last time it was changed? Might also want to look at your wire harness. The big block on the drivers side above the valve cover. Make sure your connection is good and tight 10mm. Just a start.

 

The oil is down 1-2 quarts, but nothing that would keep it from running and it has about 4000 miles on it. Doesn't look foamy. The wiring harness is tight. I don't think the leak is associated with the starting problem, but I've been wrong before. It is leaking into the engine "V" and then onto the bell housing/starter. Turbo Orings is what I have suspected as the source of the leak. And I don't think it's coming from the HP oil lines. Has anyone had any luck with IPR rebuild? I read somewhere that success rate of that is low. Also, is 170 RPM enough to build pressure to fire the injectors? Like I said earlier I think the starter has gotten weak. BTW the odometer has 185k on it, but I don't trust it.

 

The weakest part of the UVCH is under the valve covers, so you have to pop them to inspect. You can always ohm out the injectors with the 42-pin connector:



Your RPM is sufficient, but here are some other starters to compare [LINK].

 

Thanks Tugly. I have ohmed the injectors at the VC gasket in the past. But that's the first time I've seen which pins to check at the main harness. Thanks for that link too. What do you make of IPC DC going to 65% with no start? Seems to me the IPC sensor is telling the IPR what to do but IPR isn't " listening"

 

It is stuck open or there is a leak in the system somewhere preventing pressure from building up.

 

Your oil pressure seems low. Think it has to get over 700 PSI?

Mine was hard starting about like yours. Never had a no start tho. It was determined, with help from Rich, that my HPOP was weak. pulled it off today so we'll see when I get it back if it starts better.

 

Here is couple threads with some good info.

https://www.ford-trucks.com/forums/1...rt-issues.html

https://www.ford-trucks.com/forums/1...n-session.html

 

If you have air in the oil, 100% IPR isn't out of the ordinary:




IPR controls ICP. Starting ICP is 2200-2500, so the IPR will normally be way up there while cranking. Here is a graph with all the critical sensor readings above minimum to start (minimums marked by arrows).