Ficm

SUCCESS, thank you for your input!!!!! Did some further digging, check base oil pressure within spec, check oil pressure both banks approximately the same, check reservoir screen not restricted OK. Remove HPOP and found pump has spun Hopefully I can attach photos successfully.

Update: I've gone ahead and replace ICP sensor and IPR valve. Road tested and verified ICP drop, pulled over and checked oil reservoir OK with no aeration. Overfilled engine with 6L of oil and jacked up back end to check for possible cracked pick up tube. Concern still present....

Hey guys, need some help please I've got a 2002 7.3L with manual transmission, sets a check engine light with DTC P1211 when engine is under load. It recently had fuel injectors(FORD reman) and IDM replaced. Here are some of my findings. Monitor pids and found ICP to drop 900psi under load with IPR pinned at 65%. I blocked off cylinder heads to isolate banks, starts on left bank but won't start on right bank. Fuel pressure OK. Dead head HPOP 4000psi.Note cylinder 3 has PERDEL 2.4 slightly high side. Remove RHS valve cover and note INJ 1 dumping oil. Replace injector 1 and recheck same concern present. Any other ideas, thank you for your time. Matthys

I cycled EGR valve, did not hear much of a change. We are behind on preventative maintenance on our equipment, truck got send out to dealer. They reported metal debris in fuel system and HPFP on its way out.

Clear as day now, thank you very much for the screen shots, much appreciated!

Hey Brad, I check FRP KOEO 0.49V. Monitored FRP pid when engine hunts, FRP fluctuates between 3000-5000PSI. I was trying to monitor FRPDES, but it happens so quickly. APP ok.

Thank you for your input Imorris, please bare with me here. After the MAF reading, which other input does PCM use to determine EGR low flow? MAF measures air flow into engine, so in order increase MAF we give more throttle?

Hey guys got a weird one here. I've got a 6.4L with no codes and the following varying symptoms on start up, it will happen for approx. 5 sec and then idle normal - engine hunts/stumbles - crank no start - engine runs very quiet(almost like its running on brake clean) Took for a road test, power delivery seems good. Monitor power balance INJ -15RPM with a +6 SFT. Low fuel pressure 4-5PSI. IDS kicks me out of High Pressure fuel test due to sudden RPM change? Also kick me out of Relative compression test with same message. When engine surges turbo actuator goes back and forth all the time. Has anybody seen anything similar, im think high pressure fuel pump possibly?

I would like to make reference to pinpoint test AZ 11 when diagnosing DTC P0401 EGR low flow. I have difficulty wrapping my head around why MAF increases and how the PCM determines EGR low flow concern. I've read the EGR System monitor in the PC/ED, does anybody have a simpler explanation?

Hate those days! I'll try back probing when I get the truck back one day.

Thank you for your inputs. I performed VD on A-circuit KOEO between unplugged connector at alternator and battery positive as per PPT.

Got a weird one here. Operator complained about I/C and radio shutting off momentarily whilst driving. I drove the truck into my bay and it happened shortly after start up, engine kept running and I could rev it. I scanned for codes and got B1317 Battery voltage high. Perform two pinpoint test which included checking ground connections and voltage drop in A-circuit OG/LB wire. I proceeded to replace alternator. Monitored VBatt pid on start up and noticed charging system momentarily going 15.5V - 18V, when this happened I/C and radio went off. Charging system also hangs out 14.4V seems on little high side. I have also replaced the battery. It seems to happen when engine cold on start up, I could not verify whilst driving. Any ideas on what I am possibly missing?

8WA Sman I have not tried cancelling injectors, will check it out.

mchan68, did the failed horizontal cooler cause a hydrolock? Do you bench test EGR coolers to verify failure or is there another way?

I've got a 6.4L that makes rattling/ticking engine noise when tipping in on acceleration or when free revving engine mostly audible coming off throttle. No codes, Relative compression 1% down on 2 all others zero. Fuel trim +12 cylinder 2 with no drivability issues. It's is a fleet truck with dump box, lots of short trips and idling . The noise sounds like valve train, is it a matter of concern at this point and what have been your findings? I've heard about rocker arm tips failing, could this possibly be a tell tale? Thank you for your input.

Hey Alex, would you like to share how you do it in a hour and a half, damn that's fast!

What a bunch of hacks, sad thing is somebody probably paid big money!

Hey guys, I have only dealt with OEM fuel injectors, just out of curiosity how does one tell the difference from aftermarket fuel injector? I know from previous observations that original OEM fuel injectors have got black clip at top of harness and remanufactured Ford fuel injectors have got grey clips. Thank you for your input.

Hey guys, I'm working on a late build 2004 6.0L with lack of power and severe misfire at idle, truck does not want go anywhere. Noticed during my visual inspection air filter minder not plugged into air filter. I diagnosed it to be combustion air entering fuel system on right hand side bank 1. During power balance injector 1 and 7 -50rpm and eventually takes down 3 and 5. Relative compression 0 across the board. Fuel pressure 55PSI. Fuel sample good. I replaced all 4 injectors with OEM and upgraded fuel pressure regulator (blue)spring. Cleared codes misfire gone and power balance even. I noticed during my road test when truck gets hot, slight hesitation followed by puff of black smoke accelerating from stop. Monitor pids VGT appears ok does not look like turbo sticking. Air filter clean. EGR valve lazy during sweep test. Replace EGR valve, black smoke still evident. No codes. Any thoughts on what could possibly cause the black smoke condition? Could my bank 2 injectors possibly be lazy? Thank you for your input

Thank you Keith

Thank you for your input Bruce. Do you have an IPR valve that you have plugged/brazed, if so could you possibly post a picture.

I would like to know with 6.0L engines year 05-07 when performing high pressure oil leak diagnosis for long or no crank concerns, how does one determine if the IPR valve is stuck open as oppose to a huge oil leak ie. STC, d-rings, injector O-rings. I know when you command the IPR pid 0-100% with IDS one should hear an audible change in noise with stethoscope, but sometimes its hard to hear the difference, especially if you have a huge leak. Thank you for your input.

Thank you for your input, I will to look into some kind of a schedule for forced/manual regens. These municipal trucks don't travel long distances and idle a lot, drivers do not complete active regens and then they complain about smoky trucks or oil growth. Vicious cycle. Does anybody know the tsb/ssm message number for the update that makes reference to mileage based regen events?

Hey guys, I was hoping to get some information from fleet guys. I would like to know what is the average distances between completed regens for 6.4L trucks fitted with PTO's. I know Ford says between 100-600 miles 161-804km for regen frequency, is that for regular truck? I'm currently working on truck fitted with crane and dump box, distance since last regen completed was 1046km, seemed a little high, completed full regen during road test, timer went back to zero. Also for the 6.4L high idlers, is 200hrs leaving it a bit long between oil changes? Appreciate your input

Hey Guys, I had a truck 2008 F450 4x4 with the above code and ABS light on,I monitored LF WSS pid and verified no input, stayed 0km/h. I did some PPT's and replaced WSS. I performed visual inspection on WSS tone ring inside hub assembly and noticed two teeth sideways as oppose to straight. I attached some photos. Has anybody come across anything like this? What could be possible cause? Wheel bearings were tight.