Ford 6.0L Power Stroke Diesel :: Intermittent Start After Oil Cooler Replacement
Jan 5, 2017
I had a bunch of down time from knee surgery and needed to replace the oil cooler. All OEM parts were used except for egr cooler being sinister that came new but hadn't installed. Truck ran fine but deltas were getting 20-25 while unloaded. I have replaced some of the pigtails when needed, but having it apart for the other work. I looked very close at the main engine harness which was oil soaked and carefully unwrapped it checking for any problems. A couple of the pigtails were replaced and all re wrapped with abrasive type tape. All connections looked good but hit the key and no start just cranking over. Did it a couple more times and it fires but rough. Trying again and it's sounding new. Shut off re try no start. I didn't touch anything other than egr cooler oil cooler and wiring harness...
Koeo. Koer
Ipr 14.8. 33.4
Icp. 2. 950
Icv .23. 1.09-1.43 fluctuated
Ficm in 12.9v cranking 48.5 and 48.5 running.
Batteries are fully charged with trickle chargers
13.9 at batteries
Fuel bowl is 57 then 55 if it starts.
Every so often it's showing ficm sync 1 and sync 1 and starts and runs smoothly. It's non consistent. I've checked continuity and get from pcm pins 2ohms resistance. I'm thinking wiring harness but really cleaned it and checked it thoroughly. I've hit the wall. How to track down my issue?
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Is there a way to fill up the reservoir for hpop and cooler after replacement? I didn't want to burn down the starter and kill batteries cranking all day until everything is full. I did the usual upgrades on the motor and about ready to try and get it started up. Where does the oil drain to when filter is removed?
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Got everything done today. So I thought. Went for a drive. turbo not building boost. I checked the map hose and barb. Clean. Checked connection at ebp and vct, both plugged in. No exhaust leaks. turbo shafts feels good and spins good. made boost fine before repairs. 2006 6.0 f250 .....
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2004 6.0 90k miles... Oil cooler plugged & coolant puking due to egr cooler flash boil.
Flushed the coolant with tap water then replaced water pump and tstat weekend before. This week backflushed heater core & block. This weekend backflushed the oil cooler. My coolant system would be considered severe contamination due to tap water use resulting in rust. Average ect was 195-205 & avg eot was 230-240 before flush. Here's a baseline before flush.
Pulled the oil cooler exhaust cap, opened both block drains, pulled lower radiator hose, & hooked up otc blast vac. The pressure was pretty intense holding the hose into the bore just running water through it. Hit the trigger about 20 cycles of water then air blasts.
Filled with 1/2 gal of restore & tap water. Ran it for 2 hours with RPM 1k+ 95% of the time. Drove at 65 mph & grabbed some peak temps.
Then dumped restore while hot, was pretty cloudy but not that dirty. Let engine cool then filled with tap water, ran for 10 mins then dumped again. Stuck hose in degas with only the the drivers block plug pulled & revved engine a few times to have the water pump push any crap out. Pulled the oil cooler exhaust cap, opened both block drains, pulled lower radiator hose, & hooked up otc blast vac again. This time the back pressure on oil cooler was much less vs first time.
Took a mason jar with restore plus in it & boiled it in water. Got it up to 190 then poured it directly into the oil cooler & let it sit for 30 minutes. Then backflushed again.
Put rest of the whole gallon of restore plus in & topped off with tap water. Ran again for 2 hours with RPM 1k+ 95% of the time. Drove at 65 mph & grabbed some peak temps.
Dumped restore plus while hot & it was very green & contaminated with rust. Topped off with tap water, ran for 10 mins at 190 then dumped. Revved the engine again with hose in the degas bottle & only drivers block plug out to blow more junk out. Filled with tap water & dumped again.
It was late last night so I filled it with distilled & parked it. Plan to do 3 straight distilled water flushes this week running rpm 1k+ for 1 hour each time in hopes to rid all the chemicals.
The backflush didn't result in lower deltas, but it didn't puke from the degas bottle at all during both chemical flushes. The oil cooler definitely needs replaced but at least it's not puking anymore & will hopefully stay this way for about 1k miles of driving so I can let the coolant filter rid anything that breaks loose during driving. My hope was to get some sort of flow across the egr cooler to stop the flash boiling puking & get as much junk out of the system as possible. So I guess there's some sort of achievement in the end.
Currently running cheap regular green (mixes with all) elc. I am running the cheap stuff because when the coolant was puking a gallon of coolant every trip i couldn't justify upgrading to the Rotella ELC yet. Plan is to flush with rest of restore(1/2 gallon) after oil cooler r&r then switch to Rotella ELC.
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My orange one leaks, bought a blue one. How the heck to I install it? I have decent tools.
I reviewed the threads on coolant flush and fill, and bought a coolant filter kit, I will be doing that at the same time.
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I just had my oil cooler and EGR cooler replaced, and I'm now consider doing a coolant flush with Restore/Restore+ to ensure the coolant system is clean. I know this might be backwards and perhaps should have done the flush first, but schedule and such did not allow. I do have a coolant filter.
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I have a 04 that has 153k on it. 4" cat back exhaust with no cat. SCT tuner running a custom street tune. New FMIC with the extra tune on it. Head gaskets where done at 90k along with ARP studs. EGR cooler, The oil cooler was cleaned, New coolant tank. 1-new head and The cooling system was flushed at 90K. All done by the dealer along with some other items. Installed a bypass coolant filter at least 60k miles ago.
I have been having a no heat issue sometimes at idle this past winter and a mystery loss of coolant. I replaced the cap with a OEM one. I did a vacuum test on the coolant it held at 25 inches for well over a 1/2 hour. Pulled the egr valve it looked somewhat like tar inside not 100% dry. At startup it sometimes blows some white smoke and other times it's black smoke. I've had the scan gauge on for the last week to check my deltas.
Running 65mph the deltas stayed around 10 degrees diff.
Running 70mph the deltas stayed around 14-16 degrees diff.
Yesterday just running around rural roads 55mph and under the deltas stayed around 10 degrees diff.
I have not found a lower pressure gauge to do a coolant pressure test.
It does look as though it has burped the cap. Because of the deltas I'm thinking a plugged oil cooler my be the problem.
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Long story short: Got EGR Cooler and Oil cooler installed last week. New headgaskets and bolts. New down pipe. New orings on injectors. HPOP was installed 3 months ago before any of the above work.
Truck drove great for about 100 miles. Then stalled at a stop light. Restarted it. Drove another 10 miles. Truck then dies on me at 25mph. Wouldn't restart immediately. 10 minutes later it started. I drove it back home (couple miles). When i hit the last stop light, the idle immediately changed to crap. Very rough. Got home and parked it and since then I have not been able to start it.
I changed the EGR Valve, tried to start it and it wouldn't. Changed IPR Valve. Put all back together. No start. Cranked beautifully. But doesn't sound like it's taking fuel. note - no buzz/clicking from injectors and no fuel pump noise.
Here are my readings. FICM Sync - 1. I am stumped. I did recommended KOEO, checked emergency fuel switch reset, batteries are at 13.5 avg, checked harness wires and found one connector that wasn't snapped in cause the retaining clips were broken. Getting this connector replaced. Found another wire below chaffed. It is on the intake manifold. what is it for and could this be my problem? Pic below? This is where it connects to intake chaffed. The top of the two wires where they go into the connector were twisted around each other. Maybe wire to wire, maybe not. Would this cause my injectors to not buzz or fuel pump to not come on???
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Had to do the icp sensor originally. went in from the top and discovered my oil cooler was failing too. so i did that. with weather (too tall to fit in the garage) and life getting in the way it's taking me 2 months a little here n there to actually get it done so she's sat for a while. yesterday was moment of truth to get it started again. the batts were old before i started working on it. so i replaced those yesterday.
I've tried and tried to get it to start and it won't turn over. it did for one tenth of a second try. nothing since. I saw that my shifter wasn't exactly in park so i wiggled it and tried to crank it again and now it won't even crank. I have a feeling somehow the transmission isn't reading in park or neutral so it's refusing to crank. I really don't want to tow it.
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Swapped a new oil cooler and welded Egr shut. Truck ran fine the first 3-4 times I started it except for exhaust leak at the y-pipe/turbo connection. Tried to start it today and it started then ran real rough, blowing whit smoke. Now it will not start at all and blows whit smoke. The only codes I'm getting are egr codes that I've always had due to having the 05 and up intake elbow and the egr turned off via sct. What could be the issue?
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Been having an issue every once in a while for the past 3-4 weeks.
Truck will not start when cranking sometimes (has happened 4 different times as of today), then I will stop cranking, and retry and it will fire up.
Of course when I try to replicate the no start, it won't replicate. So from here on out I will make sure my Torque Pro connects to the BAXF before cranking.
I know to look at the HPOP psi number.
I need to know the other parameters to look at during cranking. I am suspecting the STC, dummy plugs, or stand pipes with a leak by or drain down of oil.
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I have a 2007 f250 6.0 powerstroke that had an intermittent crank no start problem so I replaced the sti valve on the hpop. Put it back together no start ran a few tests found the FICM had 22 volts replaced that still no start replaced IPR valve because I got a 0 ohm reading from it still no start. I am just about out of patience with it I am going to add some pics of the scanner I am using. I dont know the difference between ICP DSD and ICP PRESS.
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What is the consensus on this setup? Is it worth the money? Or is it more hype than function? Their logic behind it definitely seems to make sense.
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So I'll give a little history. Had blown head gaskets so I tackled that got it back together and now I can't get it to start. I have a monitor but it won't tell me if I have ficm sync. I have 1500 psi cop reading. I have spinning it over far 15 to 20 minutes. I'm using a bluetooth scanner and a app on my phone. I have no codes thrown or anything else. Do I keep cranking on it or am i missing something.
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Just found out that my EGR cooler is bad. How big of a job is this/how much down time if a compatent tech is doin the job?
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Started my 2005 f250 powerstroke, idle about 15 min and died like I turned key off. Hooked up scan guage had no flp, fmp or syc ipr and icp was good. Checked ficm relay and fuses and all checked good. Next morning went out and it started flp, fmp, sycall good. Idled about 1 hr and died again same bad readings. Messed with relays and wiring to ficm, it started and died after 2 min. No start again, next morning still no flp, fmp. Went out again in afternoon and everything was good again, I did nothing to it from am to pm, was loading my pistol they shoot horses don't they. I have new batterys, I changed the ficm power card last summer for low fmp. When it is running everything looks and sounds good no miss.
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I just replaced my oil cooler and 500miles later its clogged again. Delta reached 40F.. No fun... I replaced it with the factory ford cooler and installed the coolant filter but I guess when I did the first flush I missed sum gunk.
So my question to you PROs, should I reflush/restore again then replace the cooler? OR Go with one of these??
- Coolant-to-Liquid Oil Coolers
- IPR External Oil Cooler Kit for Ford 6.0 Powerstroke
The budget is tight, but I gotta keep the truck going.
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I'm considering the BPD cooler MINUS the filter. Anything wrong staying with the original filter?
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Well it looks like I'm going to have to put a new oil cooler on my truck. Does ford have an upgraded version or do they still offer the same cooler?
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My 2011 has 62k miles and has been throwing P0401 codes, which results in losing power. I assume the EGR cooler is clogged. So I went to the dealership to see if it's covered, and was told there's no warranty coverage.
I would rather blockoff the EGR cooler than repair it. I would also like the extra performance from a tuner like the MiniMaxx. I do prefer the stock exhaust and not real excited about the drone/smell that comes with deleted DPF.
Will I have issues if it's tuned with the EGR blocked off, and stock exhaust? Or am I better off doing a full delete at this point?
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My dad's 03 has had some work done after his oil cooler was clogging. New oil cooler, egr delete, head studs etc. The oil temp seemed to run some what high when he got it back. After a couple interstate runs on cold days 15-20 degrees, the water ran around 185 and oil as high as 218 but usually a bit lower. What's going on here? how could this thing be clogged again? It hasn't seem to gotten much worse since we got it back but not better either.
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